inter cabling between signal box, control box and fire

- 161 -

Tender Documents for 132/33 kV Substations, Package 4.1, Volume 2

BGD 2740 lot 4.1 v ol 2 2019 03 13.docx

– Inter cabling between signal box, control box and Fire Extinguishing Cubicle (FEC).

– Butterfly valves /Gate valves on oil drain pipe and nitrogen injection pipe which should be able

to withstand full vacuum.

– Supports, signal box etc. which are to be painted with enamelled paint.

Technical Particulars

Fire extinction period from commencement of nitrogen injection: 30 s. (max.)

Total duration from activation of fire protection system to com-

plete cooling:

30 minutes (max.)

Fire detectors' heat sensing temperature: 141 °C

Heat sensing area per detector: Up to R = 800 mm

Transformer Conservator Isolation valve setting (minimum): 60 litre / min

Capacity of nitrogen cylinder (minimum water capacity): 68 litre

Capacity of nitrogen cylinder (minimum gas capacity, at

150 kg/cm² pressure:

10 m³

Power supply, for control box and for fire extinguishing cubicle

for lighting:

110 V DC / 240 V AC

Mandatory Spare Parts - Per Substation

Cylinder filled with nitrogen of required capacity per substation: 1 piece

Fire detectors: 3 pieces

Regulator assembly: 1 piece

Tests

Reports of all type tests conducted as per relevant IEC standards including test reports for the degree

of protection for FEC / control box / signal box shall be submitted with the bid.

The performance test of the complete system shall be carried out after installation of the system on

site. Detailed layout drawings, equipment drawing along with 4 sets of the operation and maintenance

manual along with soft copies (on CDs) shall be submitted by the Contractor.

4.12.4 Water Spray System

The new power transformers shall be equipped with Water Spray System made in EU/USA/Japan

One transformer water spray system.

To the water spray system is to be allowed one valve station including necessary control and monitor-

ing cabinet, to be designed for manual, automatic and electrical remote operation and must be provid-

ed in free-standing and self-supporting design, with the following basic equipment:

the required number of triggering and fire extinguishing nozzles, with galvanized pipes and mount-

ings,

the necessary galvanized connecting lines from the appropriate valve station to the nozzles pipe

network,

the necessary drainage valve, struts, diaphragms, sleeve valve, single chamber valve stations with

all fittings and connections, pressure sensitive switches for signalling and air pressure drop with the

possibility of extension by three transformer,

- 261 -


BGD 2740 lot 4.1 v ol 2 2019 03 13.docx

The Bidder shall be responsible for all negotiations with local authority/WASA where a connection to a

public sewer is proposed. Where high water levels in public sewers may cause effluent to back up into

a site, non-return valves shall be fitted. The Bidder shall provide all protection required to existing

sewers and shall deepen foundations, including boundary wall foundations, where required to ensure

all foundations are below adjacent sewers. The Bidder shall draw longitudinal sections of all pipelines.

Main control building shall be provided with a septic tank designed for 10 users and a soakaway of

open brick construction 11m deep by 2.2m diameter filled with broken bricks. The septic tank shall be

located at least 15 metres from buildings. Other buildings shall have septic tanks designed for the re-

quired number of users. All foul drains shall be vented by a vent pipe to above roof level. The inner

surface of all manholes and septic tanks shall be painted with 2 coats of bitumastic paint to protect it

against sulphate attack. The septic tank shall have access holes directly over the inlet pipes and outlet

pipes. Where public sewers exist alongside a site, the Bidder shall connect directly to the foul sewer,

provided effluent from the sewer is treated.

The Bidder shall construct the drainage first to ensure that at no stage is rainwater ponded on any part

of the site. All rainwater shall be able to run off the site or shall be immediately pumped off site by the

Bidder. The Bidder shall complete all necessary drains before casting any roof and large concrete ar-

ea which will create large run off. The condensate drains for the air conditioning shall also be connec t-

ed to the drainage. Two vents of minimum height 2.2m shall be provided on each septic tank.

10.1.3.4 Surfacing

For the whole of the switchyard outdoor equipment area the ground shall be surfaced with gravel or

other readily available local stone as approved by the Engineer. The switchyard surfacing shall be

clean, thoroughly washed when necessary, and free from clay, soil or contaminating material and shall

be graded from 20 - 45mm, laid and lightly compacted to a finished thickness of 175mm. Below the

gravel layer there shall be a 75mm brick layer with cement mortar (1:6), laid over a 75mm level of fine

sand spread over the finished fill site.

The substation plot, outside of the designated switchgear equipment areas, shall be turfed. Turf shall

be of good quality, free from weeds and shall be a minimum of 40mm thick. Samples of the turf which

is proposed to use shall be submitted to the Engineer for his approval. The turfs shall be laid to even

surfaces on a bed of vegetable soil, which shall be raked and consolidated to provide a suitable bed.

On sloping surfaces the Bidder shall provide and fix wooden pegs to retain turfs.

All areas to be surfaced shall first be treated with a total weed killer in accordance with the Manufac-

turer's instructions. Weed killer shall only be applied in dry weather when there is no risk of it being

washed out to adjacent agricultural areas.

10.1.3.5 Roads

Access road from outside of the site boundary that connects adjacent public road and all roads within

the site boundary shall be provided by the Bidder. The road surface shall be finished by concrete pav-

ing or equivalent. All roads shall be of reinforced slabs of minimum 15 cm thickness fitted with con-

struction joints at distances not exceeding 6.0 m. Paving schedule and methodology shall be approved

by the Employer. The extent of roads required is shown approximately on Bid drawings but the scope

Maungdaw

Agartala

Shillong

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idge

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60 mi20

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80 km

N

© Magellan GeographixSMSanta Barbara, CA (800) 929-4627

Palashbari

Joypurhat

Lalmanirhat

Natore

Bottail

Jhenaidah

Manikganj Savar

Joydevpur

Tongi

Kishorganj

Sherpur

RPCL

Fenchu P/S

Srimangal

Ag

Sikalbaha

Dohazari

Panchagarh

Khulna Central

Gallamari

Satkhira

Patuakhali

Chuadanga

Magura

Bhandaria

BarisalBagherhat

Chowmuhani

Shahjadpur

Sirajganj

Feni

DaudkandiSonargaon

Kulaura

Shahmirpur

Niamatpur

Amnura

Brahmanbaria

Shahjibazar

Maduaghat

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una

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Chhatak

Sylhet

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Gopalganj

Netrokona

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Saidpur

Rangpur

BograJamalpur

Chapai Nawabganj

Rajshahi

Mymensingh

Tangail

Pabna

Jessore

Noapara

Comilla(S)Chandpur

Madaripur

Goalpara

Cox’s Bazar

Narsingdi

Noagaon

Purbasadipur

AminbazarNarsingdi

DHAKA

CTG

POWER GRID COMPANY OF BANGLADESH LTD. (PGCB)OPTICAL FIBER (OPGW) NETWORK

Raozan

Hathazari

Khulna(S)

Ishwardi

Bogra(S)

Barapukuria

BaghabariAshuganj

BibiyanaFenchuganj

Comilla(N)

Meghnaghat

Feni

Sirajganj

Ghorasal

BSRM

APSCL

Kamta

Shahbazpur

Begumganj

Kutubdia

Sangu

Semutang

Feni

Saldanodi

Bakhrabad

Meghna

Belabo Titas

Habiganj

Rashidpur

Chhatak

Moulovibazar

Fenchuganj

Kailashtila

Bianibazar

Sylhet

Bibiyana

Ashuganj

Bibiyana

Baharampur,India

Borhanuddin

Barisal (N)

SurjyamaninagarIndia

Kaliakoir

47.5

6

45.96

25.4342.59

36.00

110.46

53.4251.48

45.1146.74

46.00

62.08

37.17

49.00

42.68

18.72

42.36

05.69

39.1757.30

75.00

02.0

0

38.00

01.2

8

01.20

Bheramara

11.00

10.70

24.14

44.1249.23

28.83

23.68

02.45

44.68

28.32

40.11 50.98

39.7

1

02.4465.00

60.79

67.28

107.78

48.0504.30

10.71

27.88

39.90

175.

00

149.07

Kabirpur

15.00

56.33 34.81

60.81

05.1

7

53.56

53.50

59.50

15.50

37.26

50.1

2

03.92

29.2

3

34.00

33.87 45.00

175.5

61.83

7

99.1

6

12.9

8

63.47

69.93

33.46

54.91

87.32

24.04

47.29

89.38

150.15

45.17

27.46

22.97

15.58

49.97350.092

33.19

8 FIBERS

12 FIBERS

24 FIBERS

32 FIBERS

48 FIBERS

UNDERGROUND CABLE WITH 24 FIBERS

UNDERGROUND CABLE WITH 12 FIBERS

Dhaka-1 Dhaka-2 Chittagong Bogra Khulna

EXISTING SUB-STATIONS WITHOUT OPTICAL FIBERS

PROPOSED SUB-STATIONS

NOT PRESENT NOT PRESENT

NOT PRESENT

NOT PRESENT

NOT PRESENT

LEGEND

Halishahar

Baraulia

Kulshi

Madunaghat

Shahmirpur

Julda

Agrabad

M.st

TKC

to Dohazari

Bakulia

Sholoshahar

Uttara

Joydebpur

Kabirpur

Savar

Manikganj

Mirpur

ShampurKeraniganj RPP

Madanganj

B.bhaban

Maghbazar

Sitalakhya

Dhanmondi

Narinda

Munshiganj

to Tangail

Gulshan

Narsingdhi

K. char

Basundhara

Satmasjid.

Vasantek(Cantonment)

Kallyanpur

Matuail

Bhulta

Abul Khair

New Tongi

Lalbagh

Kaptai

Chanadraghon

Jigatola

Sikalbaha

to Comilla(N) to Raozan

to Ashuganj

Charged at 230kV

CHITTAGONG RING

DHAKA RING

Aminbazar

Agargaon (Old Airport)

Hasnabad

Shampur 230 kV

Haripur

Maniknagar

Siddhirganj

Rampura

Ghorasal

Ullon

Tongi

Hathazari

WAPDA Bhaban

HQ

NLDC

16.23

56.13

21.4504.49

3.30

13.23

19.89

18.65

03.8

7

4.5725.571

12.35

27.35(100.85)

71.30

7.70

Sylhet South

Biyani bazar57.00

30.00

Sunamganj

Rangamati

Khagrachari

13.3028.13

10.91

Bandarban

32.08

59.26

Aminbazar

16.23

100.0

0

10.31

15.95

04.37

12.8812.50

10.91

17.68

32.08

10.00

5.00

5.00

07.00

17.00

13.50

07.18

47.29

24.04

150.15

28.13

13.3

0

Meghnaghat

12.16

02.5511.0602.01

04.51

04.4

4

2.10

03.9903.47

05.00

04.80

06.00

07.93

00.9

6

10.3616.05

17.8

5

09.24

27.36

50.2

7

21.92

15.58

33.19

22.97

8.05 07.6

9

4.712

Thermal Power Plant Existing

Thermal Power Plant Planned

Hydro Power Plant Existing

Renewable Plant

Thermal Power Plant U/C

HVDC BtB Station Existing

June 2016

39.68

42.74

46.17

17.00

15.8465.08

17.59

TRANSMISSIONLINES HAVING

132 KV 230 KV 400 KV

Gas Field

59.60

82.16

10.00

02.95

PROPOSED TRANSMISSION LINES

01.95RCT

References: 1. TMCC,

Power Grid Company of Bangladesh Ltd. 2. System Planning,Power Grid Company of Bangladesh Ltd.

HVDC10

.70

0.50

82.16

Padm

a Br

idge

- 7 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx

No. Equipment Unit Qty.

B8.X Insulators and fittings incl. all necessary clamps and connectors re-

quired for completing 132 kV switchgear

Lot 1

B9.X Gantry steel structures and equipment supports required for complet-

ing 132 kV switchgear

Lot 1

B10.X All other necessary material and equipment required for completing

132 kV switchgear

Lot 1

C 33 kV Switchgear, equipment connection and steel structures

One (1) set of complete equipment for switchgear 33 kV shall be de-

signed, supplied, delivered, installed, tested and commissioned, under this

contract, comprise the following:

Set 1

C1 Circuit Breaker 36 kV, 2000 A, 25 kA, 50 Hz, 170/70 kV BIL, three pole,

vacuum type, for outdoor installation with one spring-stored energy oper-

ating mechanism

Set 2

C2.1 Disconnector 36 kV, 2000 A, 25 kA, 50 Hz, 170/70 kV BIL, three pole,

centre break, post type, manually operated

Set 3


centre break, post type, manually operated, with integrated fuse of 10 A

Set 2

C3.1 Current transformer 36 kV, 25kA, 50Hz, 170/70 kV BIL, single phase,

2000/1/1/1/1 A/A, 4-core, single ratio, post type

Set 6


10/1/1/1 A/A, 3-core, single ratio, post type

Set 6

C4 Voltage transformer 36 kV, 50Hz, 170/70 kV BIL, single phase, 33/V3 /

110/V3 / 110/V3 kV/V/V, 2 secondary windings, inductive type

Set 12

C5 Surge arrester 36 kV, 30 kV continuous operating voltage, 10 kA nominal

discharge current, 50 Hz, single phase, gapless, metal oxide type

Set 6

C7.X Conductors for single busbar system and for connection of the 33 kV

switchgear, 36 kV, 2000 A & 630 A, 25 kA

Lot 1

C8.X Insulators and fittings incl. all necessary clamps and connectors re-


Lot 1

C9.X Gantry steel structures and equipment supports required for complet-


Lot 1

C10.X All other necessary material and equipment required for completing

33 kV switchgear

Lot 1

D Transformers

D2 Power transformer 132/33 kV three phase 80/120 MVA, Dyn1,

ONAN/ONAF

Set 2

D9.2 Water Spray System Set 2

D10.X All other necessary material and equipment required for completing

transformers

Lot 1

F Earthing / Auxiliary Power Transformers

F1 Earthing / Auxiliary Power Transformer 33/0.4 kV, three phase

200 kVA, Dyn11, ONAN

Set 2

F10.X All other necessary material and equipment required for completing

Earthing / Auxiliary Power transformers.

Lot 1

- 8 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx


G Control, Protection, SCADA System and Metering

One (1) lot of complete equipment for control, protection, SCADA System

and metering for 132, 33 kV as well as LV AC and LV DC system (for

complete substation) shall be designed, calculated, supplied, delivered,

installed, tested and commissioned, under this contract.

Lot 1

The control and protection panels shall mirror the switchyard layout.

Enough space shall be reserved for future circuits.

The system comprise the following:

G1.1 Control, Protection and SAS set for 132 kV Overhead Line circuit, (in-

cluding the other end)

Set 2

G2.2 Control, Protection and SAS set for 132/33 kV Power Transformer cir-

cuits

Set 2

G3.2 Control, Protection and SAS set for Busbar 132 kV Set 1

G4 Control, Protection and SAS set for complete Switchgear 33 kV Set 1

G4.X Tariff metering panel(s) to accommodate programmable & recordable

digital 3-phase, 4-wire import and export MWh and MVArh meters (accu-

racy class 0.2) for each line and transformer feeder. For each feeder, min-

imum two (2) meters (main-1 & main-2) shall be provided

Lot 1

G5.X Digital Fault and Disturbance Recorder (DFDR) to accommodate all

feeders

Lot 0

G6.X Tele-control & Teleprotection & Tele-metering facilities, Lot 1

A complete lot of hardware and software, extension of the existing equip-

ment, necessary adjustment, adaptation, modification, integration and

configuration of new and existing equipment, all necessary modification

works in the hardware and software of the master stations, shall be pro-

vided both at the National Load Despatch Centre (NLDC) at Aftabnagar

and at the back-up station at Biddut Bhaban, for integration of the com-

plete substation

All required electrical signals shall be transmitted to the NLDC and the

back-up station through the industrial gateway of the substation automa-

tion system. All HV circuit breakers, disconnectors, tap changer, etc., shall

be controlled from the NLDC through the gateway of the substation auto-

mation system using the IEC 60870-5-104 protocol.

G10.X All other necessary material and equipment required for completing

control, protection, substation automation and metering system.

Lot 1

H Fibre Optic Multiplexer Equipment for Tele-prot. and Communication

H1.X Fibre Optic Multiplexer Equipment, a complete lot of fibre optic multi-

plexer equipment for protection & communication at substation shall be

designed, supplied, delivered, installed, tested and commissioned, under

this contract. Fibre optic multiplexer equipment is to be provided for.

Lot 1

Distance relay carrier signal (main and back-up)

Bus protection / breaker failure relay

SCADA data from switchgear and control system

VOIP system (2-IP Phone)

2-W remote subscriber ( 10 telephone sets)

Hot-line telephone system

- 13 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx







Set 2


cuits

Set 0


G4.XE Extension of the existing Tariff Metering Lot 1

Tariff metering panel(s) to accommodate programmable & recordable


racy class 0.2) for each line and transformer feeder, for required part of

substation. For each feeder, minimum two (2) meters (main-1 & main-2)

shall be provided

G5.XE Digital Fault and Disturbance Recorder (DFDR) to accommodate all

feeders, for required part of substation

Lot 0

G6.XE Tele-control & Teleprotection & Tele-metering facilities, Lot 1






and at the back-up station at Biddut Bhaban, for integration of the re-

quired part of substation








Lot 1

H Fibre Optic Multiplexer Equipment for Teleprotection and Communi-

cation

H1.XE Fibre Optic Multiplexer Equipment, a complete lot of equipment for ex-

tension of existing fibre optic multiplexer equipment for protection &

communication, for required part of substation, shall be designed, sup-

plied, delivered, installed, tested and commissioned and integrated into

the existing system, under this contract. Fibre optic multiplexer equip-

ment is to be provided for.

Lot 1





H3.XE A lot of underground optical fibre (48 cores) cables from terminal box

at gantry structure to MDF (Main distribution Frame) shall be designed,

supplied, delivered, installed, tested and commissioned, including supply

and installation of MDF and digital cables, for required part of substa-

Lot 1

- 17 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx


Q1, Q2, Q9 - Three (3) sets of three pole, three positions, motor operated,

insulated disconnector with earthing switch

Q8 - One (1) set of three pole, make-proof, motor operated earthing switch

T1-Three (3) single-phase, 5-core, multi ratio, 3200-1600-800/1/1/1/1/1 A,

GIS type current transformers

T5 - Three (3) single-phase, 2-secondary winding, 132/V3 / 110/V3 /

110/V3 kV/V/V, GIS type voltage transformers

T6 - One (1) set of three-phase, GIS type, hand operated disconnector link

SA - Three (3) single-phase outdoor surge arresters, GIS type

Z1 - One (1) set of three-phase, GIS type, cable compartment

or

Z2 - One (1) set of three phase indoor and outdoor GIB with three outdoor

GIS/AIR bushings

GIS.X - Control cabinet, cables, metal support structure, grounding, etc.

and all accessories for complete bay

BG.2 A complete indoor and partly outdoor GIS transformer feeder 145 kV,

3150A busbars / 2000 A feeder, 40 kA, 50Hz, 650/275 kV BIL, equipped

with:

Set 2

Q0 - One (1) set of three pole, GIS type, SF6 gas circuit breaker with one

spring-stored energy operating mechanism

Q1, Q2, Q9 - Three (3) set of three pole, three position, motor operated,

insulated disconnector with earthing switch

Q8 - One (1) set of three pole, make-proof, motor operated earthing switch



SA - Three (3) single-phase outdoor surge arresters, GIS type

Z1 - One (1) set of three-phase, GIS type, cable compartment

or

Z2 - One (1) set of three phase indoor and outdoor GIB with three outdoor

GIS/AIR bushings

X - Control cabinet, cables, metal support structure, grounding, etc. and all

accessories for complete bay

BG.3 A complete indoor GIS bus coupler bay 145 kV, 3150A busbars / 3150 A

feeder, 40 kA, 50Hz, 650/275 kV BIL, equipped with:

Set 1



Q1, Q2 - Two (2) sets of three pole, three position, motor operated, insu-

lated disconnector with earthing switch





BG.4 A complete indoor GIS metering bay 145 kV, 3150A busbars, 40 kA,

50Hz, 650/275 kV BIL, equipped with:

Set 1

Q21, Q22 - Two (2) sets of three pole, three position, motor operated, in-

sulated disconnector

T5 – Two (2) sets of three (3) single-phase, 2-winding, 132/V3 / 110/V3 /


- 18 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx




BG.5 A complete indoor GIS busbars earthing bay 145 kV, 3150A busbars, 40

kA, 50Hz, 650/275 kV BIL, equipped with:

Set 1

Q81, Q82 - Two (2) sets of three pole, make-proof, motor operated earth-

ing switch

B5 Surge arrester 145 kV, 120 kV continuous operating voltage, 10kA nomi-

nal discharge current, 50Hz, single phase, heavy duty, station class, gap-

less, metal oxide type

Set 12

B7.X Conductors for connection of the 132 kV switchgear, 145 kV, 2000 A, 40

kA

Lot 1



Lot 1



Lot 1


132 kV switchgear

Lot 1

C 33 kV Switchgear, Equipment Connection and Steel Structures




Set 1


vacuum type, for outdoor installation with one spring-stored energy operat-

ing mechanism

Set 2



Set 3


centre break, post type, manually operated, with integrated fuse of 10 A

Set 2



Set 6


10/1/1/1 A/A, 3-core, single ratio, post type

Set 6



Set 12



Set 6



Lot 1



Lot 1



Lot 1


33 kV switchgear

Lot 1

- 19 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx


D Transformers


ONAN/ONAF

Set 2



transformers

Lot 1




Set 2



Lot 1






Lot 1






Set 2


cuits

Set 2







Lot 1


feeders

Lot 0








plete substation.








Lot 1

- 25 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx


G5.XE Digital Fault and Disturbance Recorder (DFDR) to accommodate all

feeders, for required part of substation

Lot 0

G6.XE Tele-control & Teleprotection & Tele-metering facilities, Lot 1


ment, necessary adjustment, adaptation, modification, integration and con-

figuration of new and existing equipment, and all necessary modification

works in the hardware and software of the master stations shall be provided,

both at the National Load Despatch Centre (NLDC) at Aftabnagar and at the

backup station at Biddut Bhaban, for integration of the required part of the

substation

All required electrical signals shall be transmitted to the NLDC and the back-

up station through the industrial gateway of the substation automation sys-

tem. All HV circuit breakers, disconnectors, tap changer, etc., shall be con-

trolled from the NLDC through the gateway of the substation automation

system using the IEC 60870-5-104 protocol.

G10.X All other necessary material and equipment required for completing con-

trol, protection, substation automation and metering system.

Lot 1

H Fibre Optic Multiplexer Equipment for Teleprotection

and Communication

H1.XE Fibre Optic Multiplexer Equipment, a complete lot of equipment for ex-

tension of existing fibre optic multiplexer equipment for protection & com-

munication, for required part of substation, shall be designed, supplied,

delivered, installed, tested and commissioned and integrated into the ex-

isting system, under this contract. Fibre optic multiplexer equipment is to

be provided for.

Lot 1





H3.XE A lot of underground optical fibre (48 cores) cables from terminal box at

gantry structure to MDF (Main distribution Frame) shall be designed, sup-

plied, delivered, installed, tested and commissioned, including supply and

installation of MDF and digital cables, for required part of substation

Lot 1

I Multicore Low Voltage Auxiliary Power and Control Cables

I1.XE A complete lot of multicore low voltage auxiliary power and control ca-

bles, including all other necessary material and equipment, between all

items of equipment supplied under the contract, and connection and

integration of new equipment with existing equipment, shall be de-

signed, supplied, delivered, installed, tested and commissioned

Lot 1

J LV DC, Batteries, Chargers and DC Distribution

J1.XE Extension of existing LV DC 110 V Auxiliary Power Supply Lot 1

A complete lot, including all necessary material and equipment, including a

set of LV DC distribution switchboards, shall be designed, supplied, deliv-

ered, installed, tested and commissioned, under this contract, to provide ex-

tension of the existing LV DC 110 V Auxiliary Power Supply and for con-

nection of new equipment and integration with the existing equipment

- 30 -


BGD 2740 lot 4.1 v ol 3 2019 03 13.docx












Set 1







BG.5 A complete indoor GIS busbars earthing bay 145 kV, 3150A busbars, 40


Set 1


ing switch

B5 Surge arrester 145 kV, 120 kV continuous operating voltage, 10kA nomi-

nal discharge current, 50Hz, single phase, heavy duty, station class, gap-


Set 24


kA

Lot 1



Lot 1



Lot 1


132 kV switchgear

Lot 1

C 33 kV Switchgear, Equipment Connection and Steel Structures




Set 1


vacuum type, for outdoor installation with one spring-stored energy oper-

ating mechanism

Set 3



Set 5



Set 9



Set 18



Set 9

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BGD 2740 lot 4.1 v ol 3 2019 03 13.docx




Lot 1



Lot 1



Lot 1


33 kV switchgear

Lot 1

D Transformers


ONAN/ONAF

Set 2



transformers

Lot 1




Set 2



Lot 1






Lot 1






Set 5


cuits

Set 3







Lot 1


feeders

Lot 0








plete substation

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BGD 2740 lot 4.1 v ol 3 2019 03 13.docx








X - Control cabinet, cables, metal support structure, grounding, etc. and

all accessories for complete bay



Set 1





X - Control cabinet, cables, metal support structure, grounding, etc. and

all accessories for complete bay

BG.5 A complete indoor GIS busbar earthing bay 145 kV, 3150A busbars, 40


Set 1


ing switch

B5 Surge arrester 145 kV, 120 kV continuous operating voltage, 10kA nom-

inal discharge current, 50Hz, single phase, heavy duty, station class, gap-


Set 18

B6 Post Insulator 132 kV, 50 Hz, 650/275 kV BIL, 10 kN Set 18


kA

Lot 1



Lot 1



Lot 1


132 kV switchgear

Lot 1






Lot 1






Set 4


cuits

Set 2





Lot 1

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BGD 2740 lot 4.1 v ol 3 2019 03 13.docx


racy class 0.2) for each line and transformer feeder. For each feeder,

minimum two (2) meters (main-1 & main-2) shall be provided


feeders

Lot 0


A complete lot of hardware and software, extension of the existing

equipment, necessary adjustment, adaptation, modification, integration

and configuration of new and existing equipment, all necessary modifica-

tion works in the hardware and software of the master stations, shall be

provided both at the National Load Despatch Centre (NLDC) at Aftabna-

gar and at the back-up station at Biddut Bhaban, for integration of the

complete substation



tion system. All HV circuit breakers, disconnectors, tap changer, etc.,

shall be controlled from the NLDC through the gateway of the substation

automation system using the IEC 60870-5-104 protocol.



Lot 1

H Fibre Optic Multiplexer Equipment for Teleprotection

and Communication

H1.X Fibre Optic Multiplexer Equipment, a complete lot of fibre optic multi-

plexer equipment for protection & communication at substation shall be

designed, supplied, delivered, installed, tested and commissioned, under

this contract. Fibre optic multiplexer equipment is to be provided for.

Lot 1




VOIP system (2-IP Phone)

2-W remote subscriber ( 10 telephone sets)


H3.X A lot of underground optical fibre (48 cores) cables from terminal box

at gantry structure to MDF (Main distribution Frame) shall be designed,

supplied, delivered, installed, tested and commissioned, including supply

and installation of MDF and digital cables

Lot 1

I Multicore Low Voltage Auxiliary Power and Control Cables

I1.X A complete lot of multicore low voltage auxiliary power and control

cables, including all other necessary material and equipment, between all

items of equipment supplied under the contract shall be designed, sup-

plied, delivered, installed, tested and commissioned

Lot 1

J LV DC, Batteries, Chargers and DC Distribution

J1.X A complete lot consists of two (2) sets of 110 V Ni-Cd batteries, complete

with chargers and distribution switchboards, including all other necessary

material and equipment, shall be designed, supplied, delivered, installed,

tested and commissioned, under this contract, to provide complete LV DC

110 V supplies for the substation.

Lot 1