Ge - Mpact Mpro Acb (400a - 4000a)
Ge - Mpact Mpro Acb (400a - 4000a)
Ge - Mpact Mpro Acb (400a - 4000a)
M-PACT
New
M-PACT
INDEX
Technical Overview
Fixed Circuit Breaker .............................................................................................................................................................................. A.4 Withdrawable Circuit Breaker ........................................................................................................................................................... A.6 Characteristics .......................................................................................................................................................................................... A.7 State-of-the-Art Electronic Trip Units............................................................................................................................................. A.9 Time Current Curves ............................................................................................................................................................................A.11 M-PACT Accessories .............................................................................................................................................................................A.19
M-PACT Notes:
A.3
Technical overview
Rated from 400 to 4000A the M-PACT circuit breaker has been designed to meet the most stringent demands in fault detection and safe interruption thereof. Available in 2 frame sizes: - frame size 1 ranging from 400 to 2500A - frame size 2 ranging from 800 to 4000A The range has been developed to be aesthetically and technically co-ordinated with other protective devices within the GE Power Controls industrial product ranges. The breaker range has a common height and depth and is available in both fixed pattern and drawout versions which can be manually or electrically operated. Designed to offer multiple mains connection options it also comes with a wide range of easy-to-install accessories.
Specification
M-PACT Air Circuit Breakers comply with the following specifications for Low Voltage Switchgear: IEC 60947-1 IEC 60947-2 IEC 60947-3 Utilisation category B
Approvals
KEMA certification in accordance with IEC 60947-2 CCC certification in accordance with GB14048-2 CCS certification in accordance with China Certification of shipping
3 performance ranges* A -50 kA (Icu) D -65 kA (Icu) H1, H2 -80 kA (Icu) *Ratings shown at 415V AC 2 compact frame sizes Frame size 1 - 400 to 2500A Frame size 2 - 800 to 4000A Fixed pattern and withdrawable versions 3 or 4 pole configuration Front and rear access connections (horizontal/vertical) Devices provided with or without protection relay Manual or electrical operation Common height and depth dimensions Built-in safety features e.g. safety shutters Wide range of protection settings offering full selectivity Combinations of earth fault protection Easy-to-install accessories, common to entire range Simple and efficient servicing on site
Type A
Type D
Type H1,H2
Technical overview
A.4
Power Supply
2 8 9 10 11 7
12
Trip-free operating mechanism Positive 'ON/OFF' contact indication Mechanical/electrical anti-pumping device Charging spring status indication (optional) Ergonomic manual spring charging handle Field-mountable range of accessories Auxiliary switches 5 NO and 3 NC, 10A 250V (standard) Mechanical trip alarm switch (1NO) (optional) Padlockable push-button cover Mechanical cable interlocking (optional) Termination: rear, horizontal or front access (optional) Electrical clearances according to IEC60947-2 Front access of secondary terminals for simple connection
1. Motorised spring charging unit (optional) 2. M-PRO Protection Relay (optional) 3. Secondary contacts 4. Shunt trip (optional) 5. Closing coil (optional) 6. Undervoltage release (optional) 7. Manual charging handle 8. ON/OFF push-buttons 9. Push-button padlockable covers 10. Positive contact indication 11. Charging spring status indication 12. Mounting plate
Installation
Fixed pattern M-PACT can be fastened into any suitable switchboard or cubicle arrangement using four M8 bolts. Clearance is only required above the unit for the removal and inspection of the arc chutes (see dimensional drawings for mounting details and recommended clearance distances). An earthing point is provided on either side of the circuit breaker.
A.5
Technical overview
5 11
Insulated, earthed steel shutters to isolate the main contact zone Front access padlocking for safety shutters Secure padlocking in the "Disconnect" position Clearly visible operational position indication Carriage position switch (optional) Termination: Flat copper palms (standard) with captive M10 fixing nuts 'T' terminal adaptors for horizontal/vertical connection (optional) Front access connections (optional) Automatic disconnect of secondary circuits Lifting lugs for ease of removing the circuit breaker from the cassette Front access of secondary terminals for simple connection Cassette side mounting fixing parts (optional)
1 10
9 8
Installation
Circuit breakers are delivered pre-mounted in the cassette (standard) Versatile fixing arrangements allow mounting onto any switchboard or cubicle using four M8 bolts (see dimensional drawings for mounting details and recommended clearance distances) Earthing point situated on the right hand side of cassette (front view)
1. Carriage position switch (optional) 2. Extension rail 3. Earthed steel safety shutter 4. Secondary terminals 5. 2 way cable interlock mechanism (optional) 6. Racking handle (storage) 7. Padlocking for safety shutters 8. Insertion hole for racking handle 9. Padlocking in the DISCONNECTED position 10. Operational position indication 11. Key interlock (optional)
Technical overview
A.6
M-PACT
Characteristics Performance Data
Characteristic Rated current (400C) Symbol Units 400 20000 10000 5000 415 690 1000 8000 3&4 100% A 1 50 50 50 50 D 1 65 65 65 50 40 65 65 65 50 40 A 1 50 50 50 50 800 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 65 65 65 50 40 80 80 80 80 1000 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 65 65 65 50 40 80 80 80 80 1250 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 65 65 65 50 40 80 80 80 80 Endurance (number of operating cycles) Mechanical (with maintenance) Mechanical (without maintenance) Electrical (at rated current) Rated service voltage (50/60 Hz) Ue V Rated insulation voltage (50/60 Hz) Ui V Rated impulse withstand voltage Uimp V Number of poles Rating of 4th pole ACB type Frame size Rated ultimate short-circuit breaking capacity Icu kA (rms) 220V 415V 500V 600V 690V 220V 415V 500V 600V 690V
415
690
415
690
415
690
H2 2 80 80 80 65 60 80 80 80 65 60
A 1 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
A 1 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
Ics
kA (rms)
Rated short time withstand current 1 second 3 seconds Rated short-circuit making capacity
Watts Watts
50 40 105 15 30
50 40 105 63 127
65 50 176 23 49
65 50 176 36 77
65 50 176 60 128
Selectivity
The following table shows the conditions to satisfy full selectivity between UP-STREAM and DOWN-STREAM devices. Up-stream: M-PACT Down-stream: M-PACT ST delay 50 ms minimum between up-stream a n d downstream ACB Multiplication coefficient between LT-ratings1,56
Down-stream
400 800 1000 1250 1600 2000 2500 3200 4000 400 Full Full Full Full Full Full Full Full 800 Full Full Full Full Full Full 1000 1250 1600 2000 2500 3200 4000 Full Full Full Full Full Full Full Full Full Full Full Full Full Full 2000 Full -
Catalog NO.Configuration
MP A 3 1 F 16 04-400A, 08-800A 10-1000A, 12-1250A Ratings: 16-1600A, 20-2000A 25-2500A, 32-3200A 40-4000A Installation: F-fixed W-withdrawable Type: 1-Frame1 2-Frame2 Pole: 3-3P 4-4P* Breaking Capacity: A, D, H1, H2 M-PACT * Letter 'L' & 'R' only for type selection, not shown on nameplate.
A.7
Up-stream
Technical overview
Characteristics
1600 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 50 50 50 50 40 80 80 65 65 -
2000 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 65 65 65 50 40 80 80 80 80 -
2500 20000 10000 5000 690 415 1000 8000 3&4 100% D H1 1 2 65 65 65 50 40 65 65 65 50 40 80 80 80 80 -
3200 20000 10000 5000 415 415 1000 8000 3&4 100% D H1 2 2 65 65 65 65 80 80 80 80 -
4000 20000 10000 5000 415 415 1000 8000 3&4 100% D H1 2 2 65 65 65 65 80 80 80 80 -
415
690
415
690
415
690
415
690
415
690
A 1 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 65 50 40
A 1 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
A 1 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
A 2 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
A 2 50 50 50 50 -
H2 2 80 80 80 65 60 80 80 80 65 60
80 50 176 86 184
Weights (kg)
Fixed pattern ACB 400 to 1600A 2000 to 2500A 800 to 3200A 4000A A range Frame 3 Pole 4 Pole 1 39 49 1 43 54 2 53 68 2 53 68 4 Pole 79 85 109 128 D range 3 Pole 4 Pole 39 49 43 54 53 68 53 68 3 Pole 68 74 90 113 4 Pole 79 85 109 128 H range 3 Pole 4 Pole / / / / 53 68 53 68 3 Pole / / 90 113 4 Pole / / 109 128
Withdrawable ACB Frame 3 Pole 400 to 1600A 1 68 2000 to 2500A 1 74 800 to 3200A 2 90 4000A 2 113
Dimensions in mm
Frame Size 1 Rating (A) 400 to 2500 Poles 3 4 2 800 to 4000 3 4 Type Withdrawable Fixed Withdrawable Fixed Withdrawable Fixed Withdrawable Fixed Height(1) 440 430 440 430 440 430 440 430 Width 329 342 429 442 419 432 549 562 Depth(2) 422 352 422 352 424 352 424 352
(1) Height is from mounting surface to highest part of the ACB. (2) Depth is from the cubicle door to the back of terminals. * 4P, Neutral on the left or right Please specified on selection form, the default option is neutral on night.
Technical overview
A.8
Plug'n Play
Electronic trip units are normally supplied factory fitted. However spares are available that can be simply plugged in to breakers installed in the field.
Each trip unit then needs to be adjusted to the required settings. If the installation is not powered up the installed battery pack or the seperately available test kit with Power Pack can be used as alternate power source.
covering an extended functionality with protection devices as fuse links, overload protection and reduced instantaneous (RELT). Each MPRO-50 comes with a simple to connect 4 wire modbus communciation option.
LT-LTD protection
Each device has an overload setting range of 0.4 to a times In and offer a choice of 22 time bands designed for use with circuit breakers. A second set of 22 time bands shaped to match the time current curves of fuses is available on the MPRO-50 type.
ST-STD protection
A timed delayed short circuit protection is installed with a current setting of 2 to 12 times the set LT current value. The short circuit protection time can be set, at one of 17 bands ranging from 90 milliseconds to 1 second. Optionaly this device can be set to one of three I2t curves.
I-protection
A switchable and selective instantaneous protection with a setting range of 2 to 15 times the breaker rating that is programmed to wait one half cycle until the downstream device has reacted.
A.9
Technical overview
MPRO-27
X X X X X X X X X X X
MPRO-50
X X X X X X X X X X X X X X
X X X X X (1) X X X X X X
X X X X X X X X X (1) X X X X X X X X X X X X X
Technical overview
A.10
The MPRO Electronic trip unit has many sophisticated setting features and an extremely broad setting range. On request we can provide complete Time Current Curves covering all installed protection devices. The curves can be produced for any current setting within the range of the installed protection devices, for one or for a combination of two breakers. Please contact your local GE sales office for more information.
1000 LT Band
100
GF Band
ST Band
0,1
I Band
0,001
Green & Light Blue Line = Full Clearing time Red Line & Dark Blue Line = Non Tripping time 1000 x Current in Amps (Strom in Ampere) 10000 7,2 x 100000
A.11
Technical overview
Time Current Curves Time Current Curves (cold state) LT Protection Device
MPRO 27 & 50 Electronic Trip Unit
10000 2h
LT set at Breaker Rating In Setting Range Ie= 0.975, 0.9625, 0.95, 0.45 or 0.4 x In Ir= 0.5 to 1 x Ie in steps of 0.25 Total Setting Range 0,2 - 1 x In
- Time Current Curve LT-Protection Device - Band C-06 - Band C-11 - Band C-16 - Band C-22
- Time Current Curve LT-Protection Device - Band C-02 - Band C-07 - Band C-12 - Band C-17
1000
1000
100
100
ST protection - OFF
ST protection - OFF
10
10
0,1 1,00
x Breaker Rating In
7,2x
x Breaker Rating In
7,2x
- Time Current Curve LT-Protection Device - Band C-03 - Band C-08 - Band C-13 - Band C-19
- Time Current Curve LT-Protection Device - Band C-04 - Band C-09 - Band C-14 - Band C-20
1000
1000
100
100
ST protection - OFF
ST protection - OFF
10
10
0,1 1,00
x Breaker Rating In
7,2x
x Breaker Rating In
7,2x
Technical overview
A.12
M-PACT Time Current Curves (cold state) LT & STDB Protection Device
MPRO 27 & 50 Electronic Trip Unit
10000 2h
LT set at Breaker Rating In Setting Range Ie= 0.975, 0.9625, 0.95, 0.45 or 0.4 x In Ir= 0.5 to 1 x Ie in steps of 0.25 Total Setting Range 0,2 - 1 x In
- Time Current Curve LT-Protection Device - Band C-05 - Band C-10 - Band C-15 - Band C-21
1000
1000
100
100
ST protection - OFF
ST protection - OFF
10
10
0,1 1,00
10,00
x Breaker Rating In
7,2x
x Breaker Rating In
7,2x
17 15 13 11 9
17 15 13 11 9 7 5 3 1
- Time Current Curve ST-Protection Device I 2t - OFF- Band STDB 01 - Band STDB 03 - Band STDB 05 - Band STDB 07 - Band STDB 09 - Band STDB 11 - Band STDB 13 - Band STDB 15 - Band STDB 17
16 14 12 10
16 14 12 10 8 6 4 2
- Time Current Curve ST-Protection Device I 2t - OFF- Band STDB 02 - Band STDB 04 - Band STDB 06 - Band STDB 08 - Band STDB 19 - Band STDB 12 - Band STDB 14 - Band STDB 16
0,2
7 5
0,2
8 6
0,1
3 1
0,1
4 2
Green Line = Full Clearing Time Red Line = Non Tripping Time
Green Line = Full Clearing Time Red Line = Non Tripping Time
0,01
0,01
x Breaker Rating In
x Breaker Rating In
A.13
Technical overview
Time Current Curves Time Current Curves (cold state) ST Protection Device
MPRO 27 & 50 Electronic Trip Unit
10
- Time Current Curve ST- Protection Device I 2t ON Iow Band STDB 01 Band STDB 03 Band STDB 05 Band STDB 07 Band STDB 09 Band STDB 11 Band STDB 13 Band STDB 15 Band STDB 17
- Time Current Curve ST- Protection Device I 2t ON Iow Band STDB 02 Band STDB 04 Band STDB 06 Band STDB 08 Band STDB 10 Band STDB 12 Band STDB 14 Band STDB 16
17 15 13 11 9
17 15 13 11 9 7 5 3 1
16 14 12 10
16 14 12 10 8 6 4 2
0,2
7 5
0,2
8 6
0,1
0,1
4 2
3 1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
00,1
00,1
x Breaker rating In
x Breaker rating In
- Time Current Curve ST- Protection Device I 2t ON med Band STDB 01 Band STDB 03 Band STDB 05 Band STDB 07 Band STDB 09 Band STDB 11 Band STDB 13 Band STDB 15 Band STDB 17
- Time Current Curve ST- Protection Device I 2t ON med Band STDB 02 Band STDB 04 Band STDB 06 Band STDB 08 Band STDB 10 Band STDB 12 Band STDB 14 Band STDB 16
17 15 13 11 9
17 15 13 11 9 7 5 3 1
16 14 12 10
16 14 12 10 8 6 4 2
0,2
7 5
0,2
8 6
0,1
3 1
0,1
4 2
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
00,1
00,1
x Breaker rating In
x Breaker rating In
Technical overview
A.14
M-PACT Time Current Curves (cold state) ST, I and Hi Protection Device
MPRO 27 & 50 Electronic Trip Unit
10
ST set at Breaker Rating In Setting Range 1,5 to 12 Ir in steps of 0,5
- Time Current Curve ST- Protection Device I 2t ON max Band STDB 01 Band STDB 03 Band STDB 05 Band STDB 07 Band STDB 09 Band STDB 11 Band STDB 13 Band STDB 15 Band STDB 17
- Time Current Curve ST- Protection Device I 2t ON max Band STDB 02 Band STDB 04 Band STDB 06 Band STDB 08 Band STDB 10 Band STDB 12 Band STDB 14 Band STDB 16
17 15 13 11 9
17 15 13 11 9 7 5 3 1 3 1
16 14 12 10
16 14 12 10 8 6 4 2 4 2
0,2
7 5
0,2
8 6
0,1
0,1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
0,01
0,01
x Breaker rating In
x Breaker rating In
0,1
HSIOC device
0,1
HSIOC device
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
0,01
0,01
x Breaker rating In
x Breaker rating In
A.15
Technical overview
Time Current Curves Time Current Curves (cold state) HSIOC & GF Protection Device
MPRO 27 & 50 Electronic Trip Unit
1
0,1
0,1
50kA
Green Iine = Full Clearing time Red Line = Non Tripping time Green Iine = Full Clearing time Red Line = Non Tripping time
0,01 0,01
50 kA 65 kA 85 kA 100 kA
Amps
Amps
- Time Current Curve GF- Protection Device I 2t -OFFBand GFDB Band GFDB Band GFDB Band GFDB Band GFDB Band GFDB Band GFDB 01 03 05 07 09 11 13
I 2t -OFFBand GFDB Band GFDB Band GFDB Band GFDB Band GFDB Band GFDB Band GFDB
02 04 06 08 10 12 14
13 11
13 11 9
14
9 7
10 8
10 8 6 4
7 5 3 1
0,2
0,2
0,1
0,1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
x Breaker rating In
x Breaker rating In
Technical overview
A.16
- Time Current Curve GF- Protection Device I 2t low -ONBand GFDB 01 Band GFDB 03 Band GFDB 05 Band GFDB 07 Band GFDB 09 Band GFDB 11 Band GFDB 13
- Time Current Curve GF- Protection Device I 2t low -ONBand GFDB 02 Band GFDB 04 Band GFDB 06 Band GFDB 08 Band GFDB 10 Band GFDB 12 Band GFDB 14
13 11 9
14
14 12
9 7
10 8
10 8 6 4
7 5 3 1
0,2
0,2
0,1
0,1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
2
x Breaker rating In
x Breaker rating In
- Time Current Curve GF- Protection Device I t med -ONBand GFDB 01 Band GFDB 03 Band GFDB 05 Band GFDB 07 Band GFDB 09 Band GFDB 11 Band GFDB 13
2
- Time Current Curve GF- Protection Device I 2t med -ONBand GFDB 02 Band GFDB 04 Band GFDB 06 Band GFDB 08 Band GFDB 10 Band GFDB 12 Band GFDB 14
13 11 9
14 12
14 12
10 8
10 8 6 4
9 7
7 5 3 1
0,2
0,2
0,1
0,1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
2
x Breaker rating In
x Breaker rating In
A.17
Technical overview
Time Current Curves Time Current Curves (cold state) GF Protection Device
MPRO 27 & 50 Electronic Trip Unit
10
GF set on breaker rating In Setting Range 0,2 to 1 In in steps of 0,01
- Time Current Curve GF- Protection Device I 2t max -ONBand GFDB 01 Band GFDB 03 Band GFDB 05 Band GFDB 07 Band GFDB 09 Band GFDB 11 Band GFDB 13
1 0,8 0,6 0,4
- Time Current Curve GF- Protection Device I 2t max -ONBand GFDB 02 Band GFDB 04 Band GFDB 06 Band GFDB 08 Band GFDB 10 Band GFDB 12 Band GFDB 14
13 11 9
14 12
14 12
10 8 6
10 8 6 4
9 7
7 5 3 1
0,2
0,2
4
0,1
0,1
Green Iine = Full Clearing time Red Line = Non Tripping time
Green Iine = Full Clearing time Red Line = Non Tripping time
2
x Breaker rating In
x Breaker rating In
Technical overview
A.18
Shunt trip
The unique motor/gearbox unit is specially designed to operate with the full range of M-PACT breakers. It is easily fitted with just two bolts. In the event of circuit breaker closure, this unit will automatically recharge the spring in readiness for instant reclosure should the need arise. High speed recharging ensures that the springs are fully charged within approximately three seconds following a release. As an optional feature, a "springs charged" contact is available for the motor unit.
Undervoltage release
Instantaneously releases the circuit breaker trip mechanism should the supply voltage dip below the pre-set value. Simple to install, these devices have the same easy-fit features as previously described. Note: This is a 'no-volt/ no-close device. The circuit breaker cannot be closed (manually or electrically) unless the undervoltage release coil is energised. Time delay undervoltage release similar to the above, but this electronic device prevents nuisance tripping of the circuit breaker if circuit interruption is not desirable when supply voltage drop is only transient. Fixed time delay 3 sec 1sec. The closing coil is an easy-to-fit, clip-on unit, with simple plug-in connectors. This permits either local or remote release of the spring charged closing mechanism by electrical operation. An additional anti-pumping safety feature also ensures that the electrical closing signal must be released before further closure is attempted, and a cut-off is instigat-ed should a closing signal be maintained. Because each coil operates within a wide voltage range, the number of individually rated coils required is drastically reduced. A.19 Technical overview
Easily fitted, this useful accessory may be specified for use with either manual or motor charged M-PACT circuit breakers. It is clearly visible through the front panel, and the counter provides an accurate record of the cumulative number of complete breaker closing operations.
Combinations of rear and front access connections possible for entire range. Tested and approved from 50 to 80kA.
To simplify main busbar or cable termination, M-Pact provides a full range for rear and/or front access connection. Bolt-on adaptor kits can be fitted easily to suit either horizontal or vertical connections. Ready-to-fit interlocking device: Ronis, for installation between separate circuit breakers, available in kit form. This valuable safeguard ensures that a circuit breaker cannot be closed unless the dedicated key has been inserted and secured within the lock. Lock and key types Ronis: Type 1104B lock with standard key, 1/4" turn rotation to trap the key, compulsory spindle size.
Technical overview
A.20
All 'M-PACT' circuit breakers can be fitted with an earthing device. It has a short circuit fault capacity equal to the Icw rating of the breaker. This permits either the feeder cables or the busbar to be safety held at earthed potential and locked during system maintenance operations.
These are the main isolating contacts which are fitted to the rear terminals on the moving portion of the withdrawable unit. As part of standard inspection and maintenance procedures, cluster contacts have been designed to be easily and quickly removed and replaced using universal cluster pliers.
Available as an optional device for mounting within the base of the cassette, this switch provides six single pole changeover contacts for local or remote electrical indication of the circuit breaker status: Connected, Test and Disconnected. The Disconnected position is indicated only when minimum isolating distances between contacts on both the main and auxiliary circuits have been achieved. This option is in addition to the mechanical indicators which are fitted as standard. When installed, the carriage switch is IP2X protected and includes wiring to a terminal block located on the left-hand side of the cassette. Note: The carriage position switch is an option only suitable for withdrawable circuit breakers. Available for fixed and withdrawable circuit breakers. These units enable the direct interlocking of M-PACT circuit breakers, either mounted side-by-side or stacked. The interlocking mechanisms are connected by a specially designed cable in '1 from 3' OR '2 from 3' configuration, and any mix of current ratings / pole configurations can be accommodated. Standard cable lengths available: 1.6, 2.0, 3.0 metres. (Please contact our technical customer service department if longer length is required.)
A.21
Technical overview
Typical circuit
Interlock configuration
Type A Interlocking between 2 circuit breakers B1 normal power supply B2 generator (emergency) supply
Possible combinations
B1 0 I 0
B2 0 0 I
Circuit breaker B1 can only close if B2 is open Circuit breaker B2 can only close if B1 is open Type B Interlocking between 3 circuit breakers 3 power supplies (generator or transformers) feeding the same busbar but parallel operation is prevented. Available upon request. B1 0 I 0 0 B2 0 0 I 0 B3 0 0 0 I
Type C Interlocking between 3 circuit breakers 2 bus sections can be powered by a single transformer (bus coupler closed) or by both transformers (bus coupler open). Available upon request. B1 B2 B3 0 0 0 I 0 0 0 I 0 0 0 I I 0 I 0 I I I I 0 Any 2 from 3 circuit breakers can be closed Any 1 from 3 circuit breakers can be closed
Technical overview
A.22
By incorporating this optional security interlock device into a system, it prevents the inadvertent insertion of an incorrectly rated withdrawable circuit breaker into a cassette.
Cassette interlock
Available for withdrawable circuit breaker s only, this sophisticated interlock system secures the circuit breaker in the disconnected position by means of a Ronis key. When the key is removed, the safety shutters are automatically locked in position, thus preventing access to the contacts and also ensuring that the racking mechanism is not operable. For lock and key details refer to key interlock facility section (p. A.21)
A.23
Technical overview
M-PACT Accessories Plug-in Portable Test Unit (PTU) Auxiliary Power Unit (APU)
Specially designed for reliable testing of the MCR and HSISC protection systems on each phase, by means of tertiary injection. The test unit is also used to prove both overcurrent and earth fault pick-up levels. Can also be employed to test for tripping in order to verify efficient microprocessor operation. The test unit incorporates a set of rechargeable batteries and includes a charger unit as standard.
Available to be fitted within the circuit breaker cubicle, an APU ensures that M-PRO receives independent and continuous power at all times. The APU accepts any input supply voltage within 380VAC, 110V, 220V AC/DC. Maximum input current is 0.5 A. 1m length cable (twisted pair) should be used to connect auxiliary supply and MPRO protection relay.
AC
250
DC
125 250 220-250 110-130 48, 60 24-30 220-250 110-130 48 24-30 220-250 110-130 48 24-30 110-130 30-48 110, 220
Operating range
-
Motor operator
Closing coil
AC-300VA DC-250W
Shunt trip
AC-300VA DC-250W Inrush power consumption 300VA Holding power consumption 20VA -
Technical overview
A.24
M-PACT
N-RC N-RC
24V+ 24V+24VDC
Connection scheme
Electronic Trip Unit
MPRO 27
A15 A14 A8 A7 A6 A5 A4 A3 A2 A1 B5 B6
B3
B4
Interposing CT EL CT
N
N
N-RC N-RC
Relay O/P1
Relay O/P2
Relay O/P3
Relay O/P4
24V+ 24V+24VDC
Connection scheme
Electronic Trip Unit
MPRO 50
Input 1 - 4 C 1 2 3 4 SCR
A13
A12
A11
A10
A9
A16
A20
A19
A18
A17
OFF
ON
OFF
C9
C11
C13
C15
B13
B15
B11
(+VE)
(+VE)
C1
C3
C5
C7
B9
B1
B7
A C AL ML D M ST
CC
UVR UVTD
(-VE)
(-VE)
C10
C12
C14
C16
B12
B16
B10
B14
C6
C8
B2
C4
B8 LP4
C2
LP7
LP5
LP6
Breaker accessories
B.2
Minimum space to earth metal and for arc chute removal Insulated metal or insulated sheet ( customer supplied )
100
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Minimum space to earth metal and for arc chute removal Insulated metal or insulated sheet ( customer supplied )
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.3
M-PACT
Horizontal, rear access connection Fixed pattern Type D-3 pole- Frame size 1, In=400A to 1600A
Minimum space to earth metal and for arc chute removal Centre line of operating panel
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Minimum space to earth metal and for arc chute removal Centre line of operating panel
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.4
Dimensional Drawings
Horizontal, rear access connection Fixed pattern Type A, D-3 pole- Frame size 1, In=2000A to 2500A
Minimum space to earth metal and for arc chute removal Centre line of operating panel
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Minimum space to earth metal and for arc chute removal Centre line of operating panel
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.5
M-PACT
Horizontal, rear access connection Fixed pattern Type A, D-3 pole- Frame size 2, In=3200A to 4000A Type H-3 pole- Frame size 2, In=800A to 4000A
Minimum space to earth metal and for arc chute removal Centre line of operating panel
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Type A, D-4 pole- Frame size 2, In=3200A to 4000A Type H-4 pole- Frame size 2, In=800A to 4000A
100 to door
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.6
Dimensional Drawings
Rear access connection Withdrawable pattern Type A-3 pole- Frame size 1, In=400A to 1600A
to door
Ventilation
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
to door
Ventilation
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.7
M-PACT
Rear access connection Withdrawable pattern Type A-3 pole- Frame size 1, In=2000A & 2500A Type D-3 pole- Frame size 1, In=400A to 2500A
to door
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Type A-4 pole- Frame size 1, In=2000A & 2500A Type D-4 pole- Frame size 1, In=400A to 2500A
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.8
Dimensional Drawings
Rear access connection Withdrawable pattern Type A, D-3 pole- Frame size 2, In=3200A Type H-3 pole- Frame size 2, In=800A to 3200A
to door
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Type A, D-4 pole- Frame size 2, In=3200A Type H-4 pole- Frame size 2, In=800A to 3200A
to door
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.9
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Connected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.10
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Minimum space to earth metal and for arc chute removal Insulated metal or insulated sheet (customer supplied)
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.11
Minimum space to earth metal and for arc chute removal Insulated metal or insulated sheet (customer supplied)
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.12
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Type A, D-4 pole - Frame size 2, ln = 3200A to 4000A Type H-4 pole - Frame size 2, ln = 800A to 4000A
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.13
to door
Connected Disconnected
Center line of operating panel
Test
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
to door
Connected
Center line of operating panel
Test
Disconnected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.14
Connected Disconnected
Center line of operating panel
Test
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Connected
Center line of operating panel
Test
Disconnected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.15
Connected
Test
Disconnected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
Type A, D-4 pole - Frame size 2, ln = 3200A to 4000A Type H-4 pole - Frame size 2, ln = 800A to 4000A
Connected
Test
Disconnected
Copperwork must be supported within 200 mm of breaker connections-busbars or cables. All connections to be tightened to 50Nm.
B.16
Rear Adapter Vertical / Horizontal Connection Type D - Frame 1 - ln = 400A to 2500A (max) Type A,D,H - Frame 2 - ln = 800A to3200A (max)
B.17
B.18
Terminals
A A
4 pole
4 pole 4 pole
Type A,D - Frame 2 - ln = 3200A to 4000A (max) Type H - Frame 2 - ln = 800A to 4000A (max)
Terminals
3 pole
4 pole
3 pole
4 pole
The cut-out dimensions shown above give an approximate nominal clearance of 30mm around ACB fascia. These sizes are for guidance and can be scaled if different aperture is required.
ACB facia
Datum for 16 off 4 holes in door / panel - bottom left hand comer of cassette viewed from front.
B.20
Frame 1-3P = 329 Frame 1-4P = 429 Frame 2-3P = 419 Frame 2-4P = 549
Frame 1-3P = 322 Frame 1-4P = 422 Frame 2-3P = 410 Frame 2-4P = 540
B.21