Ringmaster Nov07 SE6251 PDF
Ringmaster Nov07 SE6251 PDF
Ringmaster Nov07 SE6251 PDF
indoor/outdoor switchgear
Installation, operation and
maintenance instructions
November
07
Contents
page
page
General
Commissioning
54
54
Tests
55
General description
Commissioning Ringmaster
65
Storage
Goods receiving
Ringmaster operation
69
Characteristics
69
Features
70
Civil engineering
71
Earth switch
72
Internal arc
10
Cable testing
73
Cable trench
12
75
Motorpack
76
Floor preparation
Installation
13
Motorpack operation
77
Transformer mounting
14
Neon indication
78
15
Erection / connection
20
79
22
Main features
80
23
81
Accessing VTs
24
Earth switch
82
25
83
Actuators
26
Actuator control
84
Accessories
27
28
Maintenance
85
85
Protection
43
Housing
86
43
Circuit breaker
87
Operation
44
VIP300
46
VAP6
52
SCHNEIDER ELECTRIC
General
Symbols and meanings
DANGER
WARNING
CAUTION
SCHNEIDER ELECTRIC
General
Schneider Electric at your service
For technical support or advice current products please contact our customer
service department:
Tel:
+44 (0) 113 290 3651
Fax: +44 (0) 113 290 3710
Email: GBMVCustomerServices@gb.schneider-electric.com
Tel:
+44 (0) 113 290 3634
Fax: +44 (0) 113 290 3777
Email: GB-services-and-projects@gb.schneider-electric.com
Document guidelines
Safety requirements
CAUTION
All operations described hereafter must be carried out by respecting the safety
requirements in full, under the responsibility an authorised person.
DANGER
CAUTION
If the installation and operational team is unsure or not familiar with Ringmaster or
Ringmaster Range switchgear please contact Schneider Electric.
SCHNEIDER ELECTRIC
General
General description
Introduction
When fully installed the equipment is suitable for outdoor use. It may therefore
be necessary to protect the equipment from the environment during
erection/commissioning. Please check equipment specification for clarification of
indoor/outdoor use. Should the busbar chamber or cable box become exposed to
the elements, they should be thoroughly cleaned prior to energising.
Weights and dimensions
unit(s)
average dimensions
(mm) (packed)
approx. weight (kg)
h
W
I
RN2c/RE2c CN2
RN6c
SN6
CE6
SE6
CE2
MU6+CE6/
CE2/SE6
MU2
MU6
1750
520
960
280
1750
520
960
280
1750
520
960
280
1750
520
960
280
1750
1100
1100
520
1650
520
960
240
1750
520
960
240
Please refer to the appropriate pages in the Ringmaster selection guide Ref:MGMV5337 available from Schneider Electric or
on line at www.schneider.co.uk
SCHNEIDER ELECTRIC
General
Handling, transportation and storage instructions
CAUTION
High
centre of
gravity
CAUTION
Use lifting lugs
ONLY to lift
Ringmaster
Units can be carried on open topped trucks or stored outside for short periods
provided that all apertures are covered. Units should not be considered
weatherproof until the paint work has been inspected and, if necessary any
damage should be re-touched. Please refer to paintwork on page 7 for repairing
damaged paintwork.
If units are to be stored for long periods of time they should be stored in a warm,
dry location and protected against dust and debris.
All units can be off loaded by fork lift truck using the transport pallet. They can
also be off loaded using the lifting lugs fitted at the top of the unit.
Storage
SCHNEIDER ELECTRIC
Ringmaster is only suitable for outdoor storage when packaged correctly or fully
commissioned.
The type of gland supplied will vary in accordance with specific contract
requirements.
The style of packaging will vary in accordance with the method of transportation
and specific contract requirements.
Please consult your commercial documentation to see how this equipment is
packed.
General
Storage
Off loading
All units are delivered on pallets (secured by 4 x M8 screws and nuts) and fitted
with lifting eyes, suitable for off loading by forklift truck or overhead crane.
Ancillary kits
Ancillary kits containing busbar, dyscon boots, glands, screws etc. are supplied
loose with each unit or fastened to the panel leg or secured in the cable boxes.
Prior to operation
Prior to energising
It is recommended that prior to energising the unit all protection device are
checked to ensure they are set correctly. For TFL units ensure fuses are fitted.
VIP units must be set in accordance with the results of a protection co-ordination
study.
SCHNEIDER ELECTRIC
General
Goods receiving
Goods receiving
CAUTION
Paintwork
Check for any damaged paintwork. Damaged areas should be cleaned and
re-coated as follows:
Rub down the area around the damage with medium glass paper. Clean the
damaged area with emery paper ensuring the surface is clean and free of any
corrosion. Apply one coat of zinc-rich epoxy primer (a two-pack system is
recommended), the coating to be 35-45 microns thick. The recommended paint
system is International Paints Interzinc EPA 072 and EPA 073.
Leave to cure for 24 hours, then apply two, 35-45 micron coats (ie 70-80 microns
in total) of two-pack polyurethane, Interphane PFR 764 is recommended.
The standard colour employed is Dark Grey Code 632 to BS 381C:1996.
SCHNEIDER ELECTRIC
General
Characteristics
Check that the information contained on the rating plate corresponds to the
equipment ordered.
Ringmaster
RN2C
123 Jack Lane
Leeds LS10 1BS U.K.
busbars
Switch
Circuit
Breaker
630
16
40
630
16
40
200
16
40
kA
16
16
kA
40
40
To Specification
Ringmaster
Non extensible
Compact
11kV
12kV
75kV
50/60HZ
300 kg
0.516 kg
0.35 bar G
Ratings
Year
Serial NO.
Panel type no.
Service voltage
Highest system voltage
Impulse voltage withstand level
Frequency
Mass of unit (max)
Mass of SF6 Gas
SF6 Gas filling pressure at 20C
Normal current
Ringmaster
CE2
200A circuit breaker
S - Switch
C - Circuit breaker
N - Non extensible
E - Extensible
2 = 200A
6 = 630A
rating
To specification EA41-26
Leeds LS10 1BS U.K.
Serial NO.
Service voltage
Highest system voltage
Impulse voltage withstand level
Frequency
Mass (max)
SF6 Gas filling pressure at 20C
Year
12kV
12kV
75kV
50/60HZ
350 kg
0.80 bar G
Ratings
Busbars
Normal current
Circuit breaker
630
230
16
kA
16
Peak making
current
kA
40
40
kA
kA
Testing standard
16
40
B.S.5311
IEC 56
SCHNEIDER ELECTRIC
Civil engineering
Floor preparation
Floor preparation, equipment fixing dimensions and main cable position can be
found in the Ringmaster selection guide reference MGMV5337. Or, if supplied
the arrangement drawing for the switchboard or unit.
Both non extensible units and switchboards can be directly bolted to the concrete
floor by use of 4 x 10mm (supplied) UNI-FIX or similar rag bolt fixings see diagram. The floor tolerance for extensible switchboards is 1mm over 1
metre.
41
spring loaded
channel nut
70
41
foot of unit
channels grouted in
position using setting
jigs supplied
channels made
in subfloor
Where it is not possible to guarantee that the floor is within the specified tolerance,
we strongly recommend the use of foundation channels, i.e. Unistrut P3270 or
similar.
Note: The floor must be 1mm below the top of the Unistrut.
SCHNEIDER ELECTRIC
Civil engineering
Internal arc
Internal arc
Kits to safely divert the flow of gasses
outside the substation are not part of
the supply of equipment. If required,
kits will need to be adapted to each
situation.
CAUTION
Arrows indicate direction of exhaust
gases
Ringmaster
10
SCHNEIDER ELECTRIC
Civil engineering
Internal arc
CAUTION
Where units are to be installed in an
enclosed substation the following
approximate free air volumes behind
the units must be observed.
Minimum 112m
CAUTION
Minimum 152m
External venting
panel hinged on
bottom edge
SCHNEIDER ELECTRIC
11
Civil engineering
Cable trench
Cable trench
735
928
695
door
533
2042
1630
223.5
1320
operating
handle
54.5
560
97
97
CAUTION
166
757
166
757
1320
1320
45
front entry
12
45
maincable
trench
trench
maincable
rear entry
SCHNEIDER ELECTRIC
Installation
CAUTION
If the location is outside the certified parameters please refer to the selection guide,
alternatively contact Schneider Electric for advice. Where the units are to be
installed in environments where the above parameters are exceeded, this must be
declared to Schneider Electric so the appropriate de-rating factors can be applied.
Failure to rate the equipment to the location may result in equipment failure.
CAUTION
SCHNEIDER ELECTRIC
Units may be installed indoors or outdoors but must not be subjected to regular
extremes of weather e.g. heavy rain storms, heavy snow and ice, flooding,
temperature cycles not greater than 55C and less than -25C, dense coastal fog
or acid rain.
13
Installation
Transformer mounting
470
89
116
370
89
86
86
86
86
86
216
Adjust RMU stand height to suit. Under workshop conditions remove transformer lid
screws. Pump oil out to below HV pocket height. (Pump into clean, dry drum).
Remove blanking plate. Push units together. Insert bushing gasket and make firm
connections on flanges and support brackets. Make off the 3 phase connections
checking that these are tight and in the correct phase sequence, onto the
M12 copper studs in the bushings. Pump clean oil back to the cold oil fill level
marked on the transformer oil gauge. Re-fit tank cover ensuring that there is no
damage to the gasket. Touch up paint as necessary.
Perform primary winding resistance test in insulation resistance test.
516
936
ESI35-1 transformer
537
1320
1510
1955
973
40
771
510
30 600
771
385.5
385.5
263
267
105 105
4 OFF M10*115
RAWL THROUGHBOLTS
213
213
WARNING
14
SCHNEIDER ELECTRIC
Installation
Connecting the HV cables
WARNING
Before connecting the cables, ensure that each unit is in the earthed switch
position.
The cables MUST be connected with the equipment securely fixed to the ground.
The operations described below apply to apply to all types.
The connections used should be made and used according to the manufacturers
instructions.
Connecting Ringmaster frame to the substation earth
Before connecting the HV cables you must connect the Ringmaster frame to the
main earth bar.
Access to the HV connection bushings
Cable box venting fixings arrangement
Ensure cable box cover screws are configured correctly as detailed on cable box
cover label.
SCHNEIDER ELECTRIC
15
Installation
Connecting the HV cables
CE2, CE6, SE6, CN2, SN6 with top entry cable box.
166
757
166
757
1320
1320
45
front entry
16
45
maincable
trench
trench
maincable
rear entry
SCHNEIDER ELECTRIC
Installation
Connecting the HV cables
WARNING
Always clamp the cable with the
appropriate glanding system before
connecting the cable to the bushing.
Proceeding otherwise will put
unacceptable stress on the bushing
and could damage the bushing,
leading to equipment failure. The
weight of the cable must always be
supported by the cable gland.
WARNING
When using cable connectors use
those supplied with the equipment, if
others are used the long term
dielectric withstand cannot be
guaranteed.
DANGER
Ensure the bolt torques are adhered to, otherwise equipment failure may occur.
unit
boot type
cable socket
fixing
lug torque
(Nm)
RN2c/RE2c
main
right angled
M12 stud
54
RN6c
tee off
right angled
M12 stud
54
RN6c
tee off
straight
54
straight
54
CE6/CE2/SE6
CE2/CE6
feeder metering
right angled
54
CN2/SN6
main
straight
54
CN2/SN6
outgoing
right angled
54
Installation note
The most common cause of disruptive failure on this type of equipment is caused
by incorrectly tightened cable connections ALWAYS double check cable
connections with a calibrated torque wrench.
SCHNEIDER ELECTRIC
17
Installation
Connecting the HV cables
CAUTION
When connecting two cables per phase on RN2c and RN6c on a single bushing
use the termination kit supplied by Schneider Electric. For all other units contact
Schneider Electric for advice before proceeding.
WARNING
When cabling please ensure that the correct phase rotation is followed for all
medium voltage cable boxes.
There are phase identification stickers in all accessible points throughout the
equipment.
18
SCHNEIDER ELECTRIC
Installation
Connecting the HV cables
WARNING
The cut cable length of the cable must be adjusted for each phase (in particular 3
core cables).
Never use a bar to pull the and fit a connection lug to the bushing. The bushing
and hence the complete cubicle could irreversibly damaged.
To prevent vermin entering cable boxes ensure that the correct gland is fitted and
tightened, cable box covers are fitted correctly and all bolts are replaced. If there
are any visible spaces consult Schneider Electric on sealing advice.
SCHNEIDER ELECTRIC
19
Installation
Erection/connection
rain shield
panel lid
430
430
20
SCHNEIDER ELECTRIC
Installation
Erection/connection
busbar collar
busbar
busbar
Feeder metering
Ensure that the environment is clean
and dry. Remove busbar covers as
shown above.
Remove dyscon boots and clean
bushings. Apply DC4, Dow Corning
silicon grease to boots. Fit busbars
into boots as shown above.
busbar
busbar
Busbar metering
Ensure that the environment is clean
and dry. Remove busbar covers as
shown above.
Remove dyscon boots and clean
bushings. Apply DC4, Dow Corning
silicon grease to boots. Fit busbars
into boots as shown above.
CAUTION
Torque busbar screw to 54 Nm. Fit
dyscon dust caps. Degrease and clean
using a lint free cloth. Replace busbar
chamber covers taking care not to
damage nylon inserts. Ensure sealing
strip is correctly fitted.
SCHNEIDER ELECTRIC
21
Installation
Installation of pilot cables
on switch/circuit breaker.
Remove VIP relay if fitted, knock out
the pre-punched gland plates from the
inside as required. There is no need to
re-touch with paint (the plates are
stainless steel).
on MU2
Knock out the pre-punched gland
plates from the inside as required.
There is no need to re-touch with paint
(the plates are stainless steel).
Note:
20.5mm = 1x7 core / 1x9 core pilot gland
25.5mm = 1x19 core pilot gland
22
SCHNEIDER ELECTRIC
Installation
Removal of VIP relay
B
B
A
SCHNEIDER ELECTRIC
23
Installation
Accessing VT's
Accessing VTs
WARNING
24
SCHNEIDER ELECTRIC
Installation
Earth fault flow indicator
SCHNEIDER ELECTRIC
25
Installation
Actuators
Procedure for fitting and setting of actuators fitted to the Ringmaster range of switchgear
CN2, SN6, CE2, CE6, SE6
1 Fix the actuator to the top mounting
bracket ensuring that the distance
from the top of the actuator to the
top of the mounting bracket is
approximately 9mm (as shown in
the drawing below) and tighten the
fixing screw. Note: this is only an
approximate preliminary setting.
2 Also ensure there is approximately
3mm of clearance between the body
of the actuator and the facia of the
unit (as shown in the drawing
below).
3 Rotate the bottom of the actuator in
a clockwise direction (if looking from
below as shown in the drawing) until
resistance against the actuator
motor can be felt.
IMPORTANT
In the event that the actuator fails
to complete a closing or opening
operation, DO NOT attempt to
disconnect the actuator operating
bracket spigot from the operating
handle socket.
Contact Schneider Electric, details on
page 3.
26
SCHNEIDER ELECTRIC
Installation
Accessories
Accessories
Anti-vandal measures
Padlock points are provided to prevent un-authorised access to the unit, padlocks
can be supplied with the unit if required at the time of enquiry or order.
SCHNEIDER ELECTRIC
27
Installation
Fitting RE2c to Ringmaster range
102
103
102
103
Fig.1
102
103
Fig.2
28
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
A
B
Fig.3
CAUTION
NOTE: This door is heavy! Care
must be taken when removing it.
Fig.4
Fig.5
SCHNEIDER ELECTRIC
29
Installation
Fitting RE2c to Ringmaster range
103
105
11
103
105
Fig.6
122
123
124
11
30
Fig.7
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
106A
104
105
10
106B
Fig.8
111
23
22
Fig.9
119
104
Fig.10
SCHNEIDER ELECTRIC
31
Installation
Fitting RE2c to Ringmaster range
106
106
14
101
101
Fig.11
106
14
103
105
12
Fig.12
32
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
103
105
12
103
105
103
105
10
Fig.13
121
108
SCHNEIDER ELECTRIC
Fig.14
33
Installation
Fitting RE2c to Ringmaster range
16
15
Fig.15
110
128
109
107
Fig.16
34
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
106
Fig.17
106
101
13
Fig.18
103
105
Fig.19
SCHNEIDER ELECTRIC
35
Installation
Fitting RE2c to Ringmaster range
Final assembly
Offer up blanking plate (Ref.17) to the
left hand side (viewed from the front)
of the Ringmaster range unit and
secure with 2 off 3/16 monobolt
(Ref.118).
Smear approximately 1mm thickness
of DC4 silicon compound (Ref.111)
around the stems and dyscon boots
(Ref.18) of the Ringmaster range
before sliding them into position.
118
17
Fig.20
Screw heads
36
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
20
21
Fig.22
127
126
125
SCHNEIDER ELECTRIC
37
Installation
Fitting RE2c to Ringmaster range
D
9
Fig.23
38
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
19
109
114
120
Fig.24
SCHNEIDER ELECTRIC
39
Installation
Fitting RE2c to Ringmaster range
40
25
Fig.25
SCHNEIDER ELECTRIC
Installation
Fitting RE2c to Ringmaster range
Fig.26
131
131
D
116
117
SCHNEIDER ELECTRIC
116
117
41
Installation
Fitting RE2c to Ringmaster range
18
Phase
Resistance
(micro ohms)
L1
L2
L3
196
198
200
Fig.27
114
109
120
42
SCHNEIDER ELECTRIC
Protection
Time fuse link
Protection systems
All circuit breakers can be fitted with various forms of protection system 1. VIP self powered IDMT protection - refer to VIP user guides
VIP 30 - provides protection against phase-to-phase faults
VIP 35 - provides protection against phase-to-phase faults and earth faults
VIP 300 - three phase overcurrent and earth fault protection
2. Time fuse link (TFL) protection system to EA 41-26 (time fuse links to EA 12-6).
Time fuse link protection provides a cost effective way of protecting a transformer
of 1600kVA or less. It is a recognised method of protection and the fuses are
covered by EA 12-6 (1973). The arrangements in the Ringmaster range is of
2 phase overcurrent and earth fault.
TFL selection
Schneider Electric recommend TFL sizes in accordance with the table below.
WARNING
TLF protection will not work correctly
unless the recommended fuses are
fitted.
The table also includes our recommendations for the maximum LV fuse size to
ensure discrimination. Note that the size of this fuse is less than the full load
current of the transformer, however, it would normally be expected to have a
number of LV fuses fed from the LV side of the transformer.
Important note: Please ensure TFL fuses are fitted prior to energising the equipment.
CT ratio = 50/5
(kV)
200
315
500
800
1000
1250
1600
3.3
10A
TFL
150A
LV fuse
5A
10A
15A
TFL
150A
250A
400A
LV fuse
3A
5A
10A
15A
TFL
200A
300A
400A
560A
LV fuse
3A
5A
10A
15A
TFL
200A
300A
400A
560A
LV fuse
5A
10A
15A
TFL
150A
250A
400A
LV fuse
5A
7.5A
12.5A 15A
TFL
250A
400A
560A
560A
LV fuse
5A
7.5A
10A
12.5A 15A
TFL
400A
560A
630A
630A
LV fuse
5A
7.5A
10A
12.5A 15A
TFL
400A
560A
630A
630A
LV fuse
6.6
(instantaneous trip)
11
13.8
CT ratio = 100/5
3.3
6.6
(instantaneous trip)
11
13.8
SCHNEIDER ELECTRIC
630A
630A
43
Protection
Operation
Operation
The circuit consists of 3 dual ratio
C.T.'s, 2 Direct Acting Trip (DAT)
solenoid type overcurrent coils
connected in parallel with associated
Time Fuse Links (TFL's) and
1 instantaneous earthfault DAT
solenoid Coil.
Terminal block
C11
C31
C51
Circuit breaker
contacts
Red phase TFL
Earth fault TFL
(if lifted)
S3
C110
C130
C150
C70
C70
C210
C230
C250
50/5A Ratio
Panel types
CN/SN/CE/SE
R1
Y1
B1
CIRCUIT
BREAKER
CONTACTS
P1
S1
C12
RED O/C COIL
C 31
C32
C 51
C52
S2
P2
S3
100/5A RATIO
C110
RATIO CHANGEOVER
LINK
C130
C150
C 70
C71
REMOVABLE TEST LINK
C210
C230
C250
50/5A RATIO
Panel types
RN2c/RE2c/RN6c
44
SCHNEIDER ELECTRIC
Protection
Operation
WARNING
SCHNEIDER ELECTRIC
Current transformers (T200E and earth fault flow indicator) that are not going to be
used during commissioning or during service, they must be shorted out otherwise
irreversible damage may occur to current transformers and/or the unit.
45
Protection
VIP 300
4
C B
phase
overcurrent
10
I>
sensors:
200/1 4509996A0
VIP300LH range: x2
I>>
DT only
EI
VI
off
(x Is) off
warning
0.1
(x Is)
curve selection
0.15 0.2
0.3
0.1
0.07
x10
0.4
0.05
(s)
t>
Is
15
2.7
not time
multiplier
x1
12
1.2
DT
42 48 56
36
64
30
72
24
80
20 100 90
(A)
9
2.4
1.5
RI
VIP300
2.1
1.8
SI
I>
trip
20
0.2
0.6
0.9
0.03
1.5
(s)
t>>
see table
t> to>
0.4
0.05
0.6
reset
minimum operating
phase current: 20A
Io>
EI
1.8
SI
off
DT
trip
2.1
1.2
1
9
2.4
1.5
RI
x1
x1
x1
x1
x1
x1
x1
x10
x1
x10
x10
x10
x10
x10
x10
x10
SI
VI
EI
0.02
0.02
0.03
0.05
0.07
0.10
0.13
0.17
0.20
0.24
0.34
0.50
0.67
1.01
1.35
2.02
0.03
0.05
0.07
0.10
0.13
0.20
0.27
0.33
0.40
0.47
0.67
1.00
1.33
2.0
2.67
4.00
0.06
0.09
0.12
0.19
0.25
0.37
0.50
0.62
0.74
0.87
1.24
1.86
2.48
3.71
4.95
7.43
Io>>
DT only
VI
0.05
0.07
0.1
0.15
0.2
0.3
0.4
0.05
0.6
0.07
0.1
0.15
0.2
0.3
0.4
0.6
12
15
6
4
2.7
20
(x Ios) 3
(x Ios) off
curve selection
16 24 32
12
40
8
50
4
60
2 80 70
(A)
Io>
0.15 0.2
0.07
x1
0.6
not time
multiplier
0.4
0.6
0.1
0.05
0.9
0.03
to>
Ios
earth fault
x10
0.4
0.05 (s)
0.2
warning
0.3
0.1
to>>
see table
1.5
(s)
D
11 12
13
14
15
E
17
18
16
19
20
Other functions
1.
A.
B.
46
C.
D.
E.
SCHNEIDER ELECTRIC
Protection
VIP 300
WARNING
VIP 300 relay will not work without the appropriate settings
G
SI, VI, EI RI
t>
K
t>>
Is
F
1.2 Is
10 Is
I>>
t>
DT
DT curve selection
Operation
K
t>>
Is 1.2 Is
I>
I>>
SCHNEIDER ELECTRIC
47
Protection
VIP 300
Phase overcurrent
phase
overcurrent
sensors:
200/1 4509996A0
VIP300LH range: x2
I>
I>
EI
1.8
1.5
off
RI
DT
1.2
1
42 48 56
36
64
30
72
24
80
20 100 90
(A)
Is
reset
0.05
0.3
t>
0.4
(s)
9
2.4
(x Is) 3
warning
0.15 0.2
0.1
0.07
x10
x1
VIP300
2.1
2.7
curve selection
trip
I>>
DT only
VI
SI
not time
multiplier
15
20
(x Is) off
0.2
see table
t>>
0.4
0.6
0.1
0.05
0.03
0.6
12
0.9
(s)
1.5
t> to>
0.05
0.07
0.1
0.15
0.2
0.3
0.4
0.05
0.6
0.07
0.1
0.15
0.2
0.3
0.4
0.6
x1
x1
x1
x1
x1
x1
x1
x10
x1
x10
x10
x10
x10
x10
x10
x10
SI
VI
EI
0.02
0.02
0.03
0.05
0.07
0.10
0.13
0.17
0.20
0.24
0.34
0.50
0.67
1.01
1.35
2.02
0.03
0.05
0.07
0.10
0.13
0.20
0.27
0.33
0.40
0.47
0.67
1.00
1.33
2.0
2.67
4.00
0.06
0.09
0.12
0.19
0.25
0.37
0.50
0.62
0.74
0.87
1.24
1.86
2.48
3.71
4.95
7.43
1 Phase overcurrent
setting area
5 Choice of low
set curve
SI
VI
EI
RI
2 Phase overcurrent
pick-up indicator
When the red LED blinks, it indicates
that the low set element has picked
up. If the current does not decrease
below the pick-up level the relay will
trip.
For IDMT curves (SI, VI, EI) the
LED blinks when the current is
greater than 1.2 times the setting
current Is.
For the IDMT curve (RI), the LED
blinks when the current is greater
than the setting.
For the DT curve, the LED blinks
when the I> pick-up setting
is exceeded.
Also refer to indicator reset button
(page 51).
48
:
:
:
:
8 Multiplying factor
(low set)
In the x10 position, the time delay
displayed on switch 7 is multiplied by
10.
4 Setting current Is
SCHNEIDER ELECTRIC
Protection
VIP 300
Earth fault
reset
minimum operating
phase current: 20A
Io>
EI
1.8
off
RI
DT
trip
1.2
1
2.1
9
2.4
1.5
Io>>
DT only
VI
SI
2.7
(x Ios) 3
12
15
6
4
20
(x Ios) off
curve selection
Io>
earth fault
16 24 32
12
40
8
50
4
60
2 80 70
(A)
Ios
0.15 0.2
0.1
0.07
0.05 (s)
to>
warning
0.3
0.4
0.6
x10
x1
not time
multiplier
0.2
0.03
see table
to>>
0.4
0.6
0.1
0.05
0.9
(s)
1.5
VAP6 test plug
SCHNEIDER ELECTRIC
49
Protection
VIP 300
Other functions
sensor
200/1: 4509996A0
sensor
200/1: 4509996A0
VIP 300LHrange: x4
Is
Is
48
42
56
36
64
30
72
24
80
20 100 90
(A)
96
84
112
72
128
60
144
48
160
40 200 180
(A)
minimum operating
phase current: 20A
minimum operating
phase current: 40A
Ios
Ios
24
16
32
12
40
8
50
4
60
2 80 70
(A)
48
32
64
24
80
16
100
8
120
4 160 140
(A)
x 4 range
sensor
400/1: 451101200
sensor
400/1: 451101200
VIP 300LHrange: x4
Is
Is
96
84
112
72
128
60
144
48
160
40 200 180
(A)
192
168
224
144
256
120
288
96
320
80 400 360
(A)
minimum operating
phase current: 40A
minimum operating
phase current: 80A
Ios
Ios
48
32
64
24
80
16
100
8
120
4 160 140
(A)
x 2 range
96
64
128
48
160
32
200
16
240
8 320 280
(A)
x 4 range
sensor
800/1: 4509169A0
sensor
800/1: 4509169A0
VIP 300LHrange: x4
Is
Is
192
168
224
144
256
120
288
96
320
80 400 360
384
336
448
288
512
240
576
192
640
160 800 720
(A)
(A)
minimum operating
phase current: 80A
minimum operating
phase current: 160A
Ios
Ios
96
64
128
48
160
32
200
16
240
8 320 280
(A)
x 2 range
50
192 256
128
96
320
64
400
32
480
16 640 560
Installation
Slide the setting scale into
(A)
x 4 range
SCHNEIDER ELECTRIC
Protection
VIP 300
SCHNEIDER ELECTRIC
51
Protection
VAP6
D
external mitop
I>
on
test in progress
trip
battery test
phase overcurrent
earth fault
trip
inhibition
earth fault
test
phase
overcurrent
test
phase
overcurrent
VIP 30
VIP 35
VIP300
VIP50
VIP75
trip
trip
inhibition
external
mitop
circuit breaker
mitop
circuit breaker
mitop
VAP6
Indicators
Push buttons:
C Trip:
Is used to test other relays in the
VIP range. It is not to be
considered for the VIP 300 test (it
lights up for a transient period
when the VIP 300 sends a tripping
order; whether or not the circuit
breaker is inhibited).
1 Battery test:
If the batteries are healthy, the
on indicator(A) lights up when
the button is pressed.
2 Phase overcurrent:
Sends the phase overcurrent test
stimulus, which is equivalent to
20 times the setting current Is.
3 Earth fault:
Sends the earth fault test
stimulus, which is equivalent to
20 times the earth setting current
Ios.
4 Trip inhibition:
By pressing and holding this
button down the relay can be
tested with the VAP6 without
tripping the circuit breaker. This
facility will inhibit the circuit
breaker tripping even if a real
fault occurs during the test.
A On:
Indicates that the batteries are
operating. Also lights up when the
battery test is carried out by
pressing battery test.
B Test in progress:
Confirms sending of the test
stimulus to the VIP 300.
Batteries:
Technical characteristics:
Supply:
Weight:
Dimensions:
52
3 x 9V 6LR61
batteries
0.45KG
93 X 157 X 45mm
SCHNEIDER ELECTRIC
Protection
VAP6
SCHNEIDER ELECTRIC
53
Commissioning
Checks and tests
Commissioning
Physical checks
Remove all packaging and transit labels from the equipment. Check the data plate
details against the specification. Check the operation of the switches/circuit
breaker, test access and various interlocks.
Functional checks
Connect the H.V. test set as shown in the diagrams an carry out the
withstand tests in accordance with the following tables.
R2 Y2 B2
R3 Y3 B3
FRONT
R1
Y1
B1
RN2c/RE2c/RN6c
RN2c
B1
Y1
R1
R2
Y2
B2
CE2/CE6/SE6 or SN6/CN2
54
SCHNEIDER ELECTRIC
Commissioning
Tests
frequency
(Hz)
duration
(minutes)
3.6
50
1 (AC) 15 (DC)
7.5
7.2
16
50
1 (AC) 15 (DC)
15
12
23
50
1 (AC) 15 (DC)
25
13.8
32
50
1 (AC) 15 (DC)
32
CB / switch
live terminals
earthed terminals
closed
R, Y, B
frame
closed
R, Y
B, frame
closed
Y, B
R, frame
closed
B, R
Y, frame
open
R1, Y1, B1
open
R2, Y2, B2
ring switch 1
ring switch 2
circuit breaker
live terminals
earthed terminals
closed
closed
closed
R1, B1
Y1, frame
closed
closed
closed
Y1
closed
closed
open
R1, Y1 B1
closed
closed
open
R2, Y2, B2
open
open
closed
R2, Y2, B2
open
open
closed
SCHNEIDER ELECTRIC
55
Commissioning
Tests
R1, Y1, B1
R1, Y1, B1
x
R2, Y2, B2
R2, Y2, B2
Diagram of connections - RN2
CAUTION
56
When applying AC/DC test voltages greater than 12kV additional insulation
must be added to the bushing sleeve to prevent damage.
The bushing sleeve is designed to be used in conjunction with some additional
method of insulation, such as econ boot or heatshrink termination boots.
Due to the compact design of the bushing, permanent damage could result from
high voltage stress if additional insulation is not used during testing.
SCHNEIDER ELECTRIC
Commissioning
Tests
Ringmaster circuit
breakers
R1
Y1
Terminal block
Select
phase
C11
B1
C31
C51
Circuit breaker
contacts
Red phase TFL
Earth fault TFL
(if lifted)
50/100A a.c.
100/5A Ratio
S3
C110
C130
C150
C70
C210
C70
Removable Test Link
C230
C250
50/5A Ratio
A
0 - 5A
Select
phase
Removable Earth Link
R2
Y2
B2
Panel types
CN/CE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
SCHNEIDER ELECTRIC
57
Commissioning
Tests
Select
phase
Y1
Ringmaster circuit
breakers
R1
Terminal block
Select
phase
C11
B1
C31
C51
Circuit breaker
contacts
Red phase TFL
Earth fault TFL
(if lifted)
S3
C110
Switch 'S'
C130
+ve
C150
6V - 12Vd.c.
C70
C70
-ve
C210
C230
C250
50/5A Ratio
-ve
mA
+ve
d.c. milliammeter
Select
phase
Removable Earth Link
R2
Y2
B2
Panel types
CN/CE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
58
SCHNEIDER ELECTRIC
Commissioning
Tests
Ringmaster circuit
breakers
R1
Y1
Three phase
shorting link
(100A rated)
Terminal block
C11
B1
C31
C51
Circuit breaker
contacts
Temporary TFL Shorting Link
Earth fault TFL
(if lifted)
S3
C110
C130
C150
C70
C210
C70
Removable Test Link
C230
C250
Select
phase
50/5A Ratio
mA
0 - 10mA a.c.
50/100A a.c.
Removable Earth Link
R2
Y2
B2
Panel types
CN/CE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
SCHNEIDER ELECTRIC
59
Commissioning
Tests
Ringmaster circuit
breakers
R1
Y1
Three phase
shorting link
(100A rated)
Terminal block
C11
B1
C31
C51
1
2
Circuit breaker
contacts
Temporary TFL Shorting Link
Earth fault TFL
(if lifted)
S3
C110
C130
C150
C70
C210
C70
Removable Test Link
C230
C250
Select
phase
50/5A Ratio
50/100A a.c.
Removable Earth Link
R2
Y2
B2
Panel types
CN/CE
Ringmaster C
ring main units
T.F.L shorting link
phases
under
test
In cct
Out cct
circuit
breaker
action
R-Y
R-Y
Y-B
Y-B
R-B
R-B
R
B
B
R
R
B
B
R
R
B
B
R
no trip
trip
no trip
trip
trip
trip
Panel types
RN2c/RE2c/RN6c
60
SCHNEIDER ELECTRIC
Commissioning
Tests
Three phase
shorting link
Ringmaster circuit
breakers and switches
R1
(100A rated)
Y1
5
6
7
Terminal block
C11
B1
Range
phases
under
test
C.T. ratio
trip levels
circuit
breaker
action
R
Y
B
50/5A
50/5A
50/5A
20 - 26.5 A
20 - 26.5 A
20 - 26.5 A
trip
trip
trip
R
Y
B
100/5A
100/5A
100/5A
25 - 31 A
25 - 31 A
25 - 31 A
trip
trip
trip
RN2c
phases
under
test
C.T. ratio
trip levels
circuit
breaker
action
R
Y
B
50/5A
50/5A
50/5A
19 - 28 A
19 - 28 A
19 - 28 A
trip
trip
trip
R
Y
B
100/5A
100/5A
100/5A
24 - 33 A
24 - 33 A
24 - 33 A
trip
trip
trip
C31
C51
Circuit breaker
contacts
Temporary TFL Shorting Link
Earth fault TFL
(if lifted)
0-50A a.c.
100/5A Ratio
S3
C110
C130
C150
C70
C70
C210
C230
C250
50/5A Ratio
Select
phase
Removable Earth Link
R2
Y2
B2
Panel types
CN/SN/CE/SE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
SCHNEIDER ELECTRIC
61
Commissioning
Tests
Ringmaster circuit
breakers and switches
R1
Y1
B1
2
3
4
5
6
7
Terminal block
C11
C31
Select pairs
of phases
C51
0 - 5A a.c.
Circuit breaker
contacts
Temporary TFL Shorting Link
Earth fault TFL
(if lifted)
S3
C110
C130
C150
C70
C210
C70
Removable Test Link
C230
C250
50/5A Ratio
R2
Y2
B2
Panel types
CN/SN/CE/SE
T.F.L shorting link
phases
under
test
In cct
Out cct
circuit
breaker
action
R-Y
R-Y
Y-B
Y-B
R-B
R-B
R
B
B
R
R
B
B
R
R
B
B
R
no trip
trip
no trip
trip
trip
trip
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
62
SCHNEIDER ELECTRIC
Commissioning
Tests
Ringmaster circuit
breakers
R1
4
5
6
7
Y1
Terminal block
Select
phase
C11
B1
C31
C51
Circuit breaker
contacts
0 - 5A a.c.
Temporary TFL Shorting Link
Earth fault TFL
(if lifted)
S3
C110
C130
C150
C70
C210
C70
Removable Test Link
C230
C250
50/5A Ratio
R2
range
phases
under
test
C.T. ratio
trip levels
circuit
breaker
action
R
Y
B
50/5A
50/5A
50/5A
2.0 - 2.65 A
2.0 - 2.65 A
2.0 - 2.65 A
trip
trip
trip
R
Y
B
100/5A
100/5A
100/5A
1.25 - 1.55 A
1.25 - 1.55 A
1.25 - 1.55 A
trip
trip
trip
RN2c
phases
under
test
C.T. ratio
trip levels
circuit
breaker
action
R
Y
B
50/5A
50/5A
50/5A
1.7 - 2.8 A
1.7 - 2.8 A
1.7 - 2.8 A
trip
trip
trip
R
Y
B
100/5A
100/5A
100/5A
1.1 - 1.65 A
1.1 - 1.65 A
1.1 - 1.65 A
trip
trip
trip
Y2
B2
Panel types
CN/CE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
SCHNEIDER ELECTRIC
63
Commissioning
Tests
Ringmaster circuit
breakers
Knee point
voltage
100/5A 9v
50/5A 4.5v
Typical
magnetisation
current
470mA +- 10%
940mA +- 10%
Panel types
CN/CE
Ringmaster C
ring main units
Panel types
RN2c/RE2c/RN6c
64
SCHNEIDER ELECTRIC
Commissioning
Commissioning Ringmaster with VIP 300
Factory tests:
All Ringmaster panel types are fully tested before leaving the factory. These tests include the
whole protection system including current transformers, wiring harness, relay, trip coil and the
circuit breaker itself using primary injection to energise the system. Tripping tests are carried
out using different settings for each of the IDMT and DT curves available on the relay. The
tripping times are measured with a chronometer and its accuracy is verified against the
theoretical times calculated.
Reduced commissioning
Since the system is fully tested it is only necessary to prove the relay on site at the service
settings, therefore reducing commissioning time to a minimum.
Once the switchgear has been installed and cabled up, it is impractical or
sometimes impossible to carry out injection tests. It is suggested that for
commissioning and maintenance purposes either of the following two methods can be used.
1. Simple trip test using the VAP6 test unit (described previously).
2. Secondary injection using standard equipment with an output filter.
Secondary injection
Testing using secondary injection is used to test the following parts of the
protection system:
The electronic circuit.
The injection set is connected to the VIP 300 relay without disconnecting the CTs. This is
done via the sockets on the terminal rail located in the pilot cable box, just above the relay
itself.
To test the overcurrent protection the connection should be made across two CTs (terminal
rails nos 4 to 5, 5 to 6 or 6 to 4).
To test the earth fault protection, the connection should be made across one CT
(terminal rail nos 4 to 7, 5 to 7, or 6 to 7).
These terminal numbers should be cross checked with the relevant circuit breaker schematic
diagram. Terminals 15 and 16 (not shown above - see Ringmaster selection guide) give
access to a normally open contact, which is normally open when the CB is in the open
position. This can be used to connect a timing device to measure the opening time of the
relay and circuit breaker.
The type of test plug used to connect to the DIN rail connectors is a standard 2mm 19A test
plug.
CAUTION
Note: When using a secondary injection
set with VIP 300 a filter (e.g. Foster
SF30) should be used to improve the
wave form. If a filter is not used the
operating time of the relay may not
follow the theoretical operating times.
The MITOP trip coil must be used only in conjunction with the VIP relay.
Voltage withstand testing of the a u x i l i a r y and control circuits at 2000V AC for 1 minute
should never be carried out without disconnecting the MITOP trip coil or VIP relay.
Secondary injection facilities are provided on the terminal rail in the pilot cable box.
No external connections should be made to the VIP 300 or theMITOP trip coil.
52
7
x4 range
40A,80A or 160A
5 minimum
operating
3 current
1
P2
S1
P1
S1
P1
S2
S2
P2
S1
B
S2
P2
C11
C31
C31
C51
C51
x2 range
20A,40A or 80A
minimum
operating
4 current
C10
C70
C30
C50
C90
10
S2
C71
P1
CT1
C11
C70
11
12
13
14
MITOP - ITC
K8
K7
(-VE)
(+VE)
0v
15
16
SCHNEIDER ELECTRIC
CB auxiliary contact
(for timing purposes)
65
Commissioning
Commissioning Ringmaster with VIP 300
The test procedure outlined here is only a guide and may need modifying to suit
the different test sets available.
The manufacturers instructions should be read before attempting to secondary
inject the VIP 300 relay.
The VIP 300 relay can be secondary injected like any conventional 1A relay,
therefore the output recommended for 1A relays should be used.
Calculate the secondary current to be injected from the equivalent primary current,
taking into account the CTs used and the range selected by connections to the
terminals on the back of the relay.
With the VIP 300 connected so as to present the correct burden, the following tests
can be carried out:
1.
Pick-up check
- Increase the current slowly until the appropriate LED indicator starts to blink.
2.
Setting check:
- Set the current to be injected (a true RMS ammeter should be used to
measure the current).
- The CB should then be closed and the counter/timer reset. The current
should then be applied.
- When the CB has operated, the applied current should be turned off if not
done automatically.
- The time shown on the counter display includes the operating time of the
circuit breaker >80ms or <100ms. The actual relay operating time can then be
calculated by subtracting this time from the counter reading.
Note: No connection should be made to the MITOP trip coil from the
secondary injection test set.
RN6c
CT ratio 400/1A
CE6, RN6c
CT ratio 800/1A
Range x 2
Range x 4
Range x 2
Range x 4
Range x 2
Range x 4
Minimum Operating
Current=20A
Minimum Operating
Current=40A
Minimum Operating
Current=40A
Minimum Operating
Current=80A
Minimum Operating
Current=80A
Minimum Operating
Current=160A
Secondary
injected current
Equivalent
primary current
Secondary
injected current
Equivalent
primary current
Secondary
injected current
Equivalent
primary current
Secondary
injected current
Equivalent
primary current
Secondary
injected current
Equivalent
primary current
Secondary
injected current
Equivalent
primary current
100mA
20A
200mA
40A
100mA
40A
200mA
80A
100mA
80A
200mA
160A
120mA
24A
240mA
48A
120mA
48A
240mA
96A
120mA
96A
240mA
192A
150mA
30A
300mA
60A
150mA
60A
300mA
120A
150mA
120A
300mA
240A
180mA
36A
360mA
72A
180mA
72A
360mA
144A
180mA
144A
360mA
288A
210mA
42A
420mA
84A
210mA
84A
420mA
168A
210mA
168A
420mA
336A
240mA
48A
480mA
96A
240mA
96A
480mA
192A
240mA
192A
480mA
384A
280mA
56A
560mA
112A
280mA
112A
560mA
224A
280mA
224A
560mA
448A
320mA
64A
640mA
128A
320mA
128A
640mA
256A
320mA
256A
640mA
512A
360mA
72A
720mA
144A
360mA
144A
720mA
288A
360mA
288A
720mA
576A
400mA
80A
800mA
160A
400mA
160A
800mA
320A
400mA
320A
800mA
640A
450mA
90A
900mA
180A
450mA
180A
900mA
360A
450mA
360A
900mA
720A
500mA
100A
1A
200A
500mA
200A
1A
400A
500mA
400A
1A
800A
66
SCHNEIDER ELECTRIC
Commissioning
Commissioning Ringmaster with VIP 300
Customer
Site
Contact ref.
Panel
Relay type
Current transformers
200/1A
x2, 20A
x4, 40A
400/1A
x2, 40A
x4, 80A
800/1A
x2, 80A
x4, 160A
Note: Ensure connections on the rear of the relay are made to the
appropriate terminals for the x2 or x4 setting ranges and that the scale labels
are inserted correctly to match the range selected.
Indicate on the diagram below actual settings. Carry out tests and record the
results in the table provided.
200/1A
68
800/1A
sensor
200/1: 4509996A0
sensor
200/1: 4509996A0
sensor
400/1: 451101200
sensor
400/1: 451101200
sensor
800/1: 4509169A0
sensor
800/1: 4509169A0
VIP 300LHrange: x4
VIP 300LHrange: x4
VIP 300LHrange: x4
Is
Is
Is
Is
Is
48
42
56
36
64
30
72
24
80
20 100 90
(A)
96
84
112
72
128
60
144
48
160
40 200 180
(A)
96
84
112
72
128
60
144
48
160
40 200 180
(A)
192
168
224
144
256
120
288
96
320
80 400 360
(A)
192
168
224
144
256
120
288
96
320
80 400 360
minimum operating
phase current: 20A
minimum operating
phase current: 40A
minimum operating
phase current: 40A
minimum operating
phase current: 80A
minimum operating
phase current: 80A
minimum operating
phase current: 160A
Ios
Ios
Ios
Ios
Ios
Ios
24
16
32
12
40
8
50
4
60
2 80 70
48
32
64
24
80
16
100
8
120
4 160 140
48
32
64
24
80
16
100
8
120
4 160 140
(A)
(A)
400/1A
phase
overcurrent
I>
EI
1.8
SI
I>
2.4
DT
(s)
curve selection
2.7
(x Is) 3
trip
warning
0.15 0.2
0.3
0.1
0.07
x10
0.4
0.05
not time
multiplier
x1
0.6
see table
12
15
6
4
20
(x Is) off
0.2
0.4
0.6
0.1
0.05
0.9
0.03
t>
1.5
(s)
t>>
reset
Io>
EI
1.8
SI
off
trip
DT
2.1
9
2.4
1.5
RI
1.2
2.7
t> to>
0.05
0.07
0.1
0.15
0.2
0.3
0.4
0.05
0.6
0.07
0.1
0.15
0.2
0.3
0.4
0.6
x1
x1
x1
x1
x1
x1
x1
x10
x1
x10
x10
x10
x10
x10
x10
x10
SI
VI
EI
0.02
0.02
0.03
0.05
0.07
0.10
0.13
0.17
0.20
0.24
0.34
0.50
0.67
1.01
1.35
2.02
0.03
0.05
0.07
0.10
0.13
0.20
0.27
0.33
0.40
0.47
0.67
1.00
1.33
2.0
2.67
4.00
0.06
0.09
0.12
0.19
0.25
0.37
0.50
0.62
0.74
0.87
1.24
1.86
2.48
3.71
4.95
7.43
Io>>
DT only
VI
(A)
VIP 300
9
1.2
192 256
128
96
320
64
400
32
480
16 640 560
(A)
2.1
1.5
off
RI
96
64
128
48
160
32
200
16
240
8 320 280
I>>
DT only
VI
(A)
(A)
96
64
128
48
160
32
200
16
240
8 320 280
(A)
(A)
Is
384
336
448
288
512
240
576
192
640
160 800 720
(s)
12
15
6
4
20
(x Ios) off
curve selection
0.15 0.2
Io>
0.1
0.07
0.05 (s)
earth fault
SCHNEIDER ELECTRIC
to>
warning
0.3
0.4
0.6
x10
x1
not time
multiplier
0.2
0.03
see table
to>>
0.4
0.6
0.1
0.05
0.9
(s)
1.5
VAP6 test plug
67
Commissioning
Commissioning Ringmaster with VIP 300
Curve...............
T..............
Phase A-B
Phase B-C
Curve........... T..............
Phase C-A
EF
Commissioning engineer
Date
Customer witness
Date
68
SCHNEIDER ELECTRIC
Ringmaster operation
RN2c, RE2c, RN6c essential checks
DANGER
!
WARNING
WARNING
Prior to energising
It is recommended that to energising the unit all protection devices are checked to
ensure they are set correctly. For TLF units ensure that fuses are fitted. VIP units
must be set in accordance with the results of a protection co-ordination study.
Note: This manual covers ring main units produced from June 1999,
designated RN2c/RN6c/RE6c.
For ring main units designated RN2/RN6 see earlier manual Ref: version 005
December
SCHNEIDER ELECTRIC
69
Ringmaster operation
Main features
Key
1
facia
auxiliary/Protection LV compartment
data plate
4
3
5
RN2c
6
8
7
operating handle
70
SCHNEIDER ELECTRIC
Ringmaster operation
Switch and circuit breaker
Note:
To operate to the main on position the operating handle must be rotated in a clockwise direction for the circuit breaker/right
hand ring switch and in an anti-clock wise direction for the left hand ring switch (as marked on the unit facia).
Note: The fitting of padlocks does not affect the electrical tripping of the unit.
SCHNEIDER ELECTRIC
71
Ringmaster operation
Earth switch
To operate to the earth on position the operating handle must be rotated in an anti-clockwise direction for the circuit
breaker/right hand ring switch and clockwise direction for the left hand ring switch (as marked on the unit facia).
Note: The unit will not electrically trip if an earth is applied onto a fault.
72
SCHNEIDER ELECTRIC
Ringmaster operation
Cable testing
SCHNEIDER ELECTRIC
Key way
73
Ringmaster operation
Cable testing
key way
74
SCHNEIDER ELECTRIC
Ringmaster operation
Circuit breaker reset
Note: To manually reset circuit breaker remove motorpack and follow above procedure.
SCHNEIDER ELECTRIC
75
Ringmaster operation
Motorpack
Note:
Only manual operation of the earth switch can be undertaken. To operate earth switch remove motorpack and follow manual
operation of earth switch instructions.
76
SCHNEIDER ELECTRIC
Ringmaster operation
Motorpack operation
panel type
operation
voltage
current
time
RN2c/RN6c/RE2c
close
24V d.c.
+ 30%
- 10%
4A
5 sec.
RN2c/RN6c/RE2c
open
24V d.c.
+ 30%
- 10%
4A
5 sec.
RN2c/RN6c/RE2c
24V d.c.
+ 30%
- 10%
3.5A
11 sec.
Values given are typical and may vary slightly between units.
SCHNEIDER ELECTRIC
77
Ringmaster operation
Neon indication
Neon indication
78
SCHNEIDER ELECTRIC
DANGER
!
WARNING
WARNING
SCHNEIDER ELECTRIC
Prior to energising
It is recommended that to energising the unit all protection devices are checked to
ensure they are set correctly. For TLF units ensure that fuses are fitted. VIP units
must be set in accordance with the results of a protection co-ordination study.
79
Key
1
facia
auxiliary/Protection compartment
box)
5
10
3
8
CN2/SN6
9
10
2
5
4/6
CE2/CE6/SE6
80
SCHNEIDER ELECTRIC
SCHNEIDER ELECTRIC
81
82
SCHNEIDER ELECTRIC
Cable testing main cable - CE6, CE2, SE6, CN2, SN6 and ring cables
Actuator control
SCHNEIDER ELECTRIC
83
panel type
operation
voltage
CE2/CE6
close
24V d.c.
CE2/CE6
open
SE6/SN6
SE6/SN6
84
current
time
+ 30%
- 10%
9A
7 sec.
24V d.c.
+ 30%
- 10%
5A
7 sec.
close
24V d.c.
+ 30%
- 10%
5A
7 sec.
open
24V d.c.
+ 30%
- 10%
5A
7 sec.
SCHNEIDER ELECTRIC
Maintenance
Recommendations and conditions
Routine maintenance will depend on the conditions to which the unit is subjected
and to the relevant codes and practice. Periodic inspection of the substation and
equipment will be necessary to establish the conditions to which the units are
subjected to.
Routine maintenance
recommendations to
BS6626:1985
ideal conditions
standard conditions
aggressive conditions
gas enclosure
no attention
no attention
no attention
housing interior
(mechos, etc.)
no attention
periodic inspection
every 5 years
housing
periodic inspection
every 5 years
every 2 years
protection system
every 5 years
every 5 years
every 5 years
Ideal conditions
Environmental conditions
Unit installed and commissioned in accordance with the manufacturers instructions
Indoors, completely protected from the weather.
Humidity below 40% and no dripping water.
Minimal dust and air circulation.
Ambient temperature between -5oC and +40oC.
No contact with any chemical agents (eg. salt).
No infestation of any animal life (eg. insects).
No contact with any plant life (eg. mould).
No earth movements.
No damage to the unit of any kind.
Operational conditions
No
No
No
No
Standard conditions
Environmental conditions
Unit installed and commissioned in accordance with the manufacturers conditions.
Humidity below 60%.
Unit may be indoors or outdoors but must not be subjected to regular extremes of weather eg.
heavy rain storms, dust storms, heavy snow and ice, flooding, temperature cycles greater
than 40oC or less than -20oC, dense coastal fog or acid rain.
No regular or thick covering of leaves or other debris.
No contact with any chemical agents (eg. salt).
No infestation of animal or plant life.
No earth movements.
No damage to the unit of any kind.
Operational conditions
No
No
No
No
Aggressive conditions
Any environmental or operational conditions which do not satisfy either of the above two
descriptions must be deemed aggressive.
We recommend that after 50% of its rated fault operations the following is checked:
Gas pressure
Trip opening time
Contact resistance
The maximum number of fault interruptions can be calculated from the interrupting capacity
graph on page 88.
Note: Local legislation may dictate maintenance be carried out with greater frequency, irrespective of site conditions. Please contact
your local Schneider Electric representative for further details.
SCHNEIDER ELECTRIC
85
Maintenance
Housing
Housing exterior
Check all external fixings, labels and earth connections are present and tight.
Check inside the main door (if fitted) and pilot cable box for heavy deposits of dust,
ingress of water or contamination by animal or plant life. Check that the gas
indicator is reading in the green zone.
Clean the units thoroughly and touch up paint work as necessary.
Housing interior
Open the main and pilot cable box door. Check that the gas indicator is in the
green zone and the protector cap is fitted over the gas filler valve.
For circuit breaker panels check the electrical protection system - refer to
commissioning instructions.
Check the operation of the unit and all mechanical interlocks.
filler point
filler point
86
SCHNEIDER ELECTRIC
Maintenance
Circuit breaker
Service life
If correctly installed and maintained the Ringmaster range of switchgear has a service
life expectancy of 25 years.
number of operations
1000
100
10
16kA version
21kA version
1
1
10
100
1000
10000
100000
The above applies to: RE2c, RE6c, CE2, CE6 and CN2 circuit breakers.
It is not applicable to the ring switches of the ring main units or the SE6.
SCHNEIDER ELECTRIC
87
Notes
88
SCHNEIDER ELECTRIC
South West
Schneider Electric Ltd
PO Box 41
Langley Road
Chippenham
Wiltshire SN15 1JJ
North West
Schneider Electric Ltd
First Floor
Market House
Church Street
Wilmslow
Cheshire SK9 1AY
Product showrooms
Industrial systems and solutions showroom
Schneider Electric Ltd, University of Warwick Science Park, Sir William Lyons Road, Coventry CV4 7EZ
Building systems and solutions showroom
Schneider Electric Ltd, Stafford Park 5, Telford, Shropshire TF3 3BL
Energy and Infrastructure systems and solutions showroom
Schneider Electric Ltd, 123 Jack Lane, Hunslet, Leeds LS10 1BS
member of
.co.uk
www.schneider-electric.co.uk
SE6251
NOV 2007