CLIENT

MANIPUR STATE GUEST HOUSING CORPORATION LTD.

IMPHAL

PROJECT
CONSTRUCTION OF MANIPUR STATE GUEST HOUSE
(3rd BHAWAN) AT DWARKA, SECTOR - 19, NEW DELHI
& SITE DEVELOPMENT INCULDING ALL SERVICES &
DEVELOPMENT WORKS

ELECTRIFICATION WORKS TENDER

SUPPLY OF SINGLE 11KV HT VCB 630A PANEL

Date: 18 Nov. 2021

Architect
M/s Collage Design Pvt. Ltd.
300, Sai Sampanna, Station Road, Vikhroli
East, Mumbai-400083

Electrical Consultant
PARAM CONSULTING ENGINEERS PVT LTD
WZ-A2B, 3rd floor, Sainik Nagar, Near Nawada Metro station Pillar no. 732,
UTTAM NAGAR, NEW DELHI-110059
Office: 8929265353, Mob. 9911925820
Email: sssarbata@gmail.com, contact.pece@gmail.com
 Technical specification
VACUUM CIRCUIT BREAKERS (11 KV)

1. GENERAL:

Vacuum Circuit Breakers shall be of latest state of art technology of vertical

isolation horizontal draw-out type. It shall be of proven design the Vacuum Circuit
Breaker shall be rated for continuous current capacity at Rated System voltage.

2. SYSTEM PARAMETERS:

The Vacuum Circuit Breakers shall be suitable for the following parameters:

a. Rated System Voltage : 11KV, 50Hz, 3Phase AC.

b. Highest System Voltage : 12 KV

c. Rated Current : 630 Amp.

d. Rated breaking Capacity : 350 MVA at 11 KV

e. Rated making capacity : 46, 83KA at 11 KV

f. Power Frequency withstand : 28 KV.

g. Impulse withstand : 75 KVP

h. Opening time : less than 40 milli secs.

i. Duty : Indoor duty

3. CODES & STANDARDS:

The breaker shall conform to IS 3427/IFC 298.

Breaker shall be fully tested as per codes/ standards a test certificate from CPPI
shall be furnished. Also, pressure test certificate as per PEHLA recommendations
shall be furnished.

a. Circuit breaker compartment

b. Bus bar compartment
c. CT & cable compartment
d. L.T Compartment for mounting meters & instruments.

Breaker compartment shall be mounted in vertical isolation horizontal draw out

truck with front plate which covers the cubicle when the breaker is in service
position. The document truck shall have ‘isolated’/’test & service’ positions.

1
 Bus bars shall be air insulated & mounted on cast epoxy insulated to withstand
short current of 44 KA for 3 Sees.

CT & cable compartment shall be preferably located on rear side. CTS shall be epoxy
insulated. Provision for terminating 2Nos. 3 core cable shall be provided. The cable
entry shall be from the bottom of the panel.

3. TECHNICAL FEATURES:

The VCB shall have the following technical features:

a. VCB shall have a mech. Endurance of 50.000 to 60.000 operations.

b. VCB shall not require routine inspection up to 10,000 mech. operations or

shall not require major inspection up to 30,000 mech. operations.

c. VCB shall be totally restrike free. Auto-reclosing shall be posing any problem.
The dielectric strength shall be recovered fast enough to perform multiple
open-close-open-operation.

d. VCB shall have negligible contact erosion even after 20,000 operations at
rated current.

5. ACCESSORIES

The Vacuum Circuit Breaker shall provide the following accessories:

a. Auxiliary Switch
b. Closing Solenoid
c. Tripping Solenoid
d. Mech. Operation Counter
e. Shunt release
f. Motorised spring charging mechanise
g. Earthing switch
h. Space heaters
i. ON/OFF/TEST/ISOLATED Indicators & name plate.
j. Earth bus (copper) with earthing bolts for all SF- 6/VCB jointed together by bus
links/bolts.

6. INSTRUMENT TRANSFORMERS:

VCB panel shall be provided with the following:

a. One 11KV/ 110V, 100 VA PT of epoxy cast resin
b. 3Nos. (double secondary) cast epoxy resin CTS of the following
characteristics:

i. 15VA burden/ class 1.0 for core-1

ii. Class 5 P10 for core-2

2
 c. Terminal strip for all CTS/ PTS & control wiring with 1.5sq.mm. Copper
wiring cables.

7. SAFETY INTERLOCKS:

The VCBs shall have following safety & interlocking features:

a. VCB truck can’t be moved when in ‘ON’ position.

b. VCB can’t be switched ‘ON’ when the truck is in any position between test or
service position.
c. Front part of the truck can’t be removed when breaker is in ‘ON’ position.
d. Low voltage plug & socket can’t be disconnected in any position except
test/isolated position.
e. Earthing switch can’t be switched ‘ON when truck is inside the panel.
f. The truck cannot be moved inside the panel when LT plug & socket is
disconnected.
g. Truck can’t be inserted when earthing switch is in ‘ON’ position.
h. Individual explosion vents for all channels on the top of the panel.
i. Self locking safety shutters to close automatically when the truck is
withdrawn to test/ isolated position.

8. METERING

a. One 0-15 KV 96 sq. mm square voltmeter with selector switch & fuse.
b. One no. Ammeter with selector switch.
c. One Trivector meter for 3 Phase, 3wire unbalanced loads with ½ max.
demand indicator.
d. One KWH meter.
e. Indicating Lamps:
i. VCB ‘closed’ lamp (1 No.)
ii. VCB ‘open’ lamp (1 No.)
iii. VCB ‘Auto trip’ lamp (1 No.)
iv. VCB ‘Heating trip’ lamp (1 No.)
v. VCB ‘spring charged’ lamp (1 No.)
vi. Non-trip alarm (1 No.)

3
 LIST OF MAKE AND MATERIALS

Sr. Description Approved

No. Makes

A) H.T. SWITCHGEAR

i) VCB Panel : SCHNEIDER /L&T/ SIEMENS /ABB (Typ.

Tested)
B) M.V. SWITCHGEAR

i) ACB : SCHNEIDER (MASTER PACT MVS) /

SIEMENS (3WL)/ ABB/ L&T

ii) MCCB : SCHNEIDER (Easy Pact CVS) / SIEMENS

(3VA)/ ABB/ L&T INDIA/ SIEMENS

iii) MCB’s : LEGRAND / SCHNEIDER/ HPL/ L&T INDIA/

SIEMENS/ HAGER
iv) Power Contactor : SCHNEIDER / SIEMENS / HPL

C) METERS / INDICATORS / PUSH BUTTONS

i) Ammeter/ Volt Meter (Digital type) : CONZERV (SCHNEIDER)/ELMEASURE

ii) Power Factor Meter (Digital type) : CONZERV (SCHNEIDER) /ELMEASURE

iii) Multi Function Meter : CONZERV (SCHNEIDER) /ELMEASURE

iv) Indicating Lamps (LED type) : L & T (ESBEE)/ VAISHNO/ SCHNEIDER

ELECTRIC

v) Push Buttons : L & T (ESBEE)/ VAISHNO/ SCHNEIDER

ELECTRIC

vi) Capacitor : APCOS/ SCHNEIDER / SIEMENS/ Neptune

Electrical Industries/ L&T India/
Subodhan Engineers Pune Pvt. Ltd

vii) 3 phase Tariff meter : Secure/ HPL

D) INSTRUMENT TRANSFORMERS

i) L.T. Current Transformers (CAST RESIN) : AEP/ KAPPA / MATRIX/ RECO

Transformers
Pvt. Ltd/ Newteck/ Trans power
tech/Trinity Energy

PROJECT: MSGH at DWARKA, NEW DELHI

Sr. Description Approved
No. Makes

ii) P.T. Potential Transformer (CAST RESIN) : AEP/ KAPPA /MATRIX

E) OTHER

i) Nuts & Bolts : GKW / AVON

ii) SMC Support : POWERMATT

iii) PVC Insulated Copper wire : RR KABLE/ Polycab

iv) APCR Relay : SCHNEIDER

v) Surge Suppressor : OBO

vi) Contactor & Over Load Relays : L&T/ SIEMENS / SCHEINDER

vii) BUSBAR : HINDALCO/ TATA/ Schneider

electric/ C & S/ L &T/ Godrej

viii) Ventilation fan for control panels : DASPASS/ REXNOD/ JAINSAN

ix) Space heaters : DASPASS

x) HRC Fuse : HPL/ L&T/ SIEMENS

xi) Selector Switch : SALZER / KAYCEE

xii) Power pack : MAHAMAI/ STATCOM

xiii) Annunciation : MINILAC/ ALAN

xiv) Switches (door/ toggle etc.) : SALZER / KAYCEE

xv) 3/5W LED Lamp :

Philips/ HPL/ Bajaj/ Ever ready/
Wipro
I/We hereby declare that I/We have read and understood the above instructions which
have been issued as conditions of the contract.

In case any of makes for any of the materials is missed out in the above list, then the
contractor shall inform the consultants about the same obtain the approval. Therefore, he
can proceed with the supply of the equipment’s.

(Signature of the Tenderer)

PROJECT: MSGH at DWARKA, NEW DELHI

PROJECT: MANIPUR STATE GUEST HOUSE AT DWARKA, NEW DELHI R0 Date : 19.11.2021
ELECTRIFICATION WORKS TENDER
1 SUPPLY OF SINGLE 11KV HT VCB PANEL
RATE
S.No. DESCRIPTION QTY UNIT TOTAL
Supply Erection

1.0 11KV HT PANEL :

Supply, testing and commissioning of panel board fabricated out of minimum 2 mm
thick sheet steel as per specifications. The panel shall be complete with cable
termination arrangement suitable for incoming and outgoing each 1 run x 3C x 300
Sqmm XLPE 11 KV cable and copper bus bar arrangement. The panel shall comprise of
the following:
1.1 INDOOR TYPE
Incomer cum outgoing VCB
1 No. 11kV 630A 26.5kA drawout type VCB with motorised spring charge mechanism for
a)
240V AC, closing & tripping coils suitable for 24V DC
Incomer comprising with following accessaries.
b) 1 No. Mechanical ON/OFF Indicator
c) 1 No. Aux Switch 6NO + 6NC
Panel, Busbar, CT, PT
1 No. Fully compartmentalised sheet steel enclosure floor mounting type with
a) automatic safety shutters, independent pressure discharge flaps, PVC sleeved busbar,
etc with provision for terminating PVC/PILC/XLPE Cable
3 Nos. Resin Cast CTs 75/1-1A with
b) Core 1 : 7.5VA CL 1
Core 2 : 7.5VA CL 5P10
c) 3 Nos. PT - 11kV/√3//110/√3V ,CL 1.0, 50VA
Breaker Panel indication Lamps :
a) 6 Nos. ON/OFF/TRIP/TRIP Ckt Healthy/Spring Charged
Switches and other Accessories
a) 8 nos.Fuses
b) 1 No. Heater
c) 1 No. Thermostat
d) 1 No. 10 Window Annunciator
e) 1 No. Plug & Socket
f) 1 No. Test Terminal Block
g) 1 No. T-N-C Switch
h) 1 No. Emergency Push Button
i) 1 No. Local/Remote Selector Switch
Meters
a) 1 No. Analog Ammeter + ASS
b) 1 No. Analog Voltmeter + VSS
c) 1 No. Digital Multifunction Meter - Quasar
Relays
a) 1 No. MC 61A (O/C + E/F - IDMT+Inst)
b) 1 No. AVAJH13 Master trip relay (Ashida)
c) 1 No. TCS Relay
Single VCB panel described as above 1 No 0

SUB TOTAL 11KV HT PANEL 0

By Param Consulting Engineers Pvt. Ltd. Page - 2

List of makes / Vendors
LIST OF APPROVED MANUFACTURERS FOR DIFFERENT MATERIALS
TO BE USED IN THIS PROJECT

(All materials shall be ISI mark)

S.
N Contact
Vendor Address Contact. No. Email id
Person

1 Risha 17, 1st floor, kanishka building, DDA, Himanshu 9810035647 sales@risha.i
control LSC, Behra Enclave, Paschim Vihar, Mehta n
Engineers new Delhi - 110087
2 L.S. power Office: L.S P+OWER CONTROL Plot NAVEEN 0124 - naveenlspcpl0
Control No. - 349A, 2576244 1@gmail.com
G - Block, Sushant Lok - II, : 0124 -
Sec-57, Gurgaon-122002 4251419
3 Ambit Ambit Switchgear Pvt Ltd, Anand 9873145711 singhal@ambi
Switchgear C 50, Phase II, Singhal t.in
Pvt Ltd Noida 201305 UP.
4 Adlec power Novateur Electrical & Digital Pinky 9899985314 pinky.singh@a
Systems Pvt. Ltd. Singh dlecpower.co
Corp. Office: - C-34/4, 2nd floor, m
Lawrence Road Industrial Area, New
Delhi - 110035.
Works: - Delhi-Rohtak-Road, Decora
Station Road, Behind IUP Jindal,
Rohad, Jhajjar, Haryana-124501

I/We hereby declare that I/We have read and understood the above instructions
which have been issued as conditions of the contract.

In case any of makes for any of the materials is missed out in the above list, then the
contractor shall inform the consultants about the same obtain the approval. Therefore, he
can proceed with the supply of the equipment’s.

(Signature of the Tenderer)

1
PARAM CONSULTING ENGINEERS PRIVATE LIMITED