PAGE No.: 1 OF 11

VALDEL ENGINEERS & CONSTRUCTORS PVT LTD

MEGHDOOTH MANSION

9, CIVIL STATION HOSUR ROAD

BANGALORE-560025 (INDIA)

PROJECT : GAS COMPRESSOR SYSTEM

CLIENT/OWNER : GUJARAT STATE PETRONET LTD., GANDHINAGAR

CONTRACT No. : 9500 VE

DOCUMENT No. : GSPL-207-E-6108

DOCUMENT TITLE : SPECIFICATION FOR LT CAPACITOR CONTROL

PANEL WITH APFC

0 01.02.2012 ISSUED FOR BID MMR SLC SLC NRR

REV. DATE REVISION DESCRIPTION PREPD. CHKD. APPD. P.M.

FV5001-1/10

VALDEL ENGINEERS &

CONSTRUCTORS PVT LTD REVISION STATUS

SHEET

PAGE No. : 2 OF 11

CONTRACT No. : 9500VE

DOCUMENT No.: GSPL-207-E-6108 REV

.

0 DATE

:

01.02.2012

DOCUMENT

TITLE:

SPECIFICATION FOR LT

CAPACITOR CONTROL PANEL

WITH APFC

SIGN. :

SHEET 1

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NOTE: IF REVISION REQUIRES ADDITIONAL PAGES TO BE INSERTED IN BETWEEN THE DOCUMENT, THE NUMBER OF THE PAGE AT

INSERTION SHALL BE NUMBERED WITH DECIMAL (e.g. INSERTION BETWEEN PAGE 10 AND 11 SHALL BE NUMBERED AS 10.1, 10.2

........)

FV5046-1/7

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 3 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

TABLE OF CONTENTS

1.0 SCOPE ............................................................................................................................. 4

2.0 CODES AND STANDARDS .......................................................................................... 4

3.0 GENERAL REQUIREMENTS ..................................................................................... 4

4.0 CONSTRUCTION .......................................................................................................... 5

5.0 DESIGN FEATURES ..................................................................................................... 6

6.0 OPERATIONS ................................................................................................................ 6

7.0 EARTHING ..................................................................................................................... 7

8.0 DOCUMENTATION ...................................................................................................... 7

9.0 INSPECTION, TESTING AND ACCEPTANCE ....................................................... 8

10.0 SYSTEM TESTS ............................................................................................................. 8

11.0 SPARES ........................................................................................................................... 8

12.0 PACKING FOR TRANSPORT..................................................................................... 9

13.0 ATTACHMENT .............................................................................................................. 9

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 4 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

1.0 SCOPE

The scope of this specification covers design, manufacture, assembly, shop

testing and delivery of low voltage shunt capacitors suitable for indoor locations

along with complete accessories and parts necessary for safe and efficient

operation.

2.0 CODES AND STANDARDS

The equipment shall comply with the requirements of latest revision of the

following standards issued by BIS (Bureau of Indian Standards) unless specified

other wise:

IS 8623 Faraday built assembly for switch gear & control gear

IS 2834 Shunt capacitor for power system

IS 4237 General requirement of switchgear & control gear for voltage not

exceeding 1000V AC & 120 volt DC.

IS 5 Colors for ready mixed paints and enamels

IS 5082 Wrought aluminium and aluminium alloy bars, rods, tubes

and sections for electrical purpose

IS 12672 Internal fuses and internal overpressure disconnectors for shunt

capacitors.

In case Indian standards are not available for any equipment, standards issued

by IEC/BS/VDE/IEEE/NEMA or equivalent agency shall be applicable.

3.0 GENERAL REQUIREMENTS

3.1 The offered equipment shall be brand new with state of the art technology and a

proven field track record. No prototype equipment shall be offered.

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 5 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

3.2 The vendor shall be responsible for design, engineering and manufacturing of

the complete capacitor bank to fully meet the intent and requirements of this

specification and attached data sheets. All equipment shall be properly

coordinated to ensure complete compatibility

4.0 CONSTRUCTION

4.1 APFCR PANEL

The housing of the capacitor banks shall be of open construction with free

ventilation for capacitor units. The connections from the capacitor units to the

control panel shall be carried in totally enclosed, dust-proof, vermin-proof bus-

ways or wire-ways. The unit shall be free standing, floor mounting & having

sheet steel thickness of 2.0mm for load bearing members 1.6mm for doors &

louvers & 3mm thick base channel. The control panel shall be fully

compartmentalized and extensible for future expansion. Bus bars and feeder

circuits shall be segregated. Single panel with all the capacitors, control &

Relay can be also considered.

4.1.1 The bus-bar sizes and clearances shall be suitable for connection of cables

through soldering sockets or crimping type cable lugs. Size of the cable will be

specified in Purchase Data Sheets. Bus-bar chamber shall be extended suitably

on one side to enable termination of cable. Undrilled removable gland plate and

access covers shall be provided for cable entry required. 5.3 The capacitor

banks shall comprise the following basic components. Other equipment, not

specifically listed below but necessary for the safe and proper functioning of the

capacitor bank shall be included:

• Capacitor units of appropriate kVAR rating

• Internal element fuses

• Bushings as per requirement

Cable end boxes for cable termination

• PVC sleeved aluminium bus bars for interconnecting the units to form

the capacitor bank

• Discharge resistors

• Incoming isolator, if specified

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 6 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

5.0 DESIGN FEATURES

5.1 Capacitor Units

5.1.1 The dielectric used in the capacitors shall be all polypropylene or mixed dielectric or

Gas filled with low watt loss. The impregnate in the capacitors shall be non-toxic, non-

PCB (Poly chlorinated bi-phenyl) based, and biodegradable.

5.1.2 The capacitor units shall be assembled such that the capacitor banks are capable of

withstanding the electro-dynamic and thermal stresses caused by transient over currents

during switching. The capacitor units shall have overload capacity as per IS 13925.

5.1.3 Protection for capacitor banks using internal element fuses shall conform to the

following requirements:

5.1.3.1 In internal element fuse design, the internal design of series and parallel

arrangement of elements shall be such that:

• In the case of one element failure, there is no harmful over voltage

across the remaining elements and no appreciable change in the

operation of the capacitor bank.

• Operation of a single fuse element does not cause cascade fuse bowling.

• Permissible over voltages and surges do not cause fuse bowling.

5.1.4 Discharge Resistors

Discharge Resistors shall be provided to reduce the capacitor bank terminal voltage to a

value equal to or less than 50V within 10 minutes after capacitor is disconnected from

the electrical system.

6.0 OPERATIONS

6.1 Power Factor Improvement Relay (PFIR) capable of automatic switching of the

capacitor units shall be provided. The relay shall have minimum 12 steps.

6.2 The relay shall measure KVAR of the system and shall be actuated by current signal of

1 Amp from secondary side of CT provided on incomer of Main PDB. 415 Voltage

signal shall be trapped from incomer of APFIR.

Essentially PFCR shall be able to achieve the following functions / features:

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 7 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

• Consistently high power factor under fluctuating load conditions.

• Automatically switch ON and OFF (self-adjustment) relevant capacitor

steps to ensure consistent power factor

• Ensure user interface for enabling reliable understanding of system

operation, such as display of power factor, number of switching

operations carried out, pre-set parameters, etc.

• Protect against any electrical faults (surge protection, unbalance, etc.) in

a manner that will ensure safe isolation of the power factor correction

equipment i.e., capacitors.

• No-volt release feature, to disconnect the capacitor in the event of

power supply failure.

• Digital setting of parameters like target PF, switching time, step limit,

etc.

• Visual display of target power factor.

• Indication for switching of banks per step.

• Switch ON and OFF the capacitors in rotation so that individual

capacitor bank shall not be in continuous used and unused condition for

a long time.

• Normally one capacitor unit of 5 KVAR shall be kept ON & balance

shall be variable as per requirement.

• Minimum Sensing current shall be 1%.

7.0 EARTHING

Enclosure of individual capacitors unit shall be provided with two numbers 10 mm dia.

earth terminals, each complete with two plain and one spring washers, nuts, etc. These

terminals shall be effectively bonded to the common sheet steel framework. Each bank

shall have two external earth terminals on the bus-bar chamber, complete with

hardware.

8.0 DOCUMENTATION

The vendor / manufacturer shall perform the engineering for the capacitor bank and

shall submit to Owner / RGTIL for review / reference, as per enclosed documentation

schedule.

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 8 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

9.0 INSPECTION, TESTING AND ACCEPTANCE

All necessary routine and acceptance tests as per IS 13925 shall be performed on the

capacitor bank / capacitor units in the presence of purchaser’s representative. Two

weeks’ advance notice shall be given to the purchaser to enable him or his authorized

representative to witness the tests. During the course of manufacturing, the purchaser or

his authorized representative to witness the tests. During the course of manufacturing,

the purchaser or his authorized representative shall be free to visit the works and assess

the progress of work and the manufacturer shall render him all possible assistance to do

so.

10.0 SYSTEM TESTS

Insulation resistance test. Functional test including simulation test on relay.

10.1.1 Capacitor Bank

Following routine test as per IS: 13340/13441 shall be carried out on the

Capacitor Bank:

• Visual Examination

• Test for output / Capacitance

• Voltage test between terminals

• High Voltage Test

• Voltage test between terminals & earth (for capacitor bank)

• Insulation resistance test

• Test for efficiency of discharge test

11.0 SPARES

11.1 A priced list of recommended operating spares and maintenance spares for two years

operation shall be provided with the Tender.

11.2 Spares shall be purchased at the discretion of the Purchaser.

11.3 Commissioning spares shall be provided by the Vendor.

SPECIFICATION

FOR LT

CAPACITOR

CONTROL PANEL

PAGE No. : 9 OF 11

Contract No. : 9500 VE

PROJECT: Revision No. : 0

GAS COMPRESSOR SYSTEM Doc. No. : GSPL-207-E-6108

Date : 01.02.2012

FV5062/2

12.0 PACKING FOR TRANSPORT

Capacitor banks along with the panel shall be packed and forwarded in accordance with

the Packing and Shipping Instructions.

13.0 ATTACHMENT

Data sheet for LT capacitor control panel………………….9500-75-1055

DATA SHEET FOR PAGE No. : 10 OF 11

LT CAPACITOR CONTROL PANEL CONTRACT No.: 9500 VE

SHT. 2 OF 2 REV. 0

DOC. No. : 9500-75-1055 ITEM. No.: QTY.:

PROJECT : REQN. No.: GSPL-207-E-6108

1 DESIGNATION

1.1 DESIGN AMBIENT TEMPERATURE 40º C

2 SYSTEM PARTICULARS

2.1 Voltage 415 ± 10%

2.2 Frequency 50 ± 5%

2.3 No of Phases / Wire 3 Phase, 4 Wire

2.4 System Grounding Solidly Earth

2.5 Fault Level 10kA, Symmetrical

3 Control / Auxiliary Supply

3.1 Contactor Coil 240V, 1 Ph, AC Supply

3.2 Potential Indicating Lights 240V, 1 Ph, AC Supply

3.3 Other Indicating Meters & Lights 240V, 1 Ph, AC Supply

3.4 Space Heaters 240V, 1 Ph, AC Supply

4 CONSTRUCTION

4.1 TYPE / MOUNTING Compartmentalised / Free Standing

4.2 NO. OF FRONTS Single Front

4.3 BASE FRAME Integral

4.4 DEGREE OF PROTECTION Indoor, IP 41(Min)

4.5 COLOUR *

5 CONTACTORS

5.1 TYPE Air Break

5.2 DUTY CLASS Capacitor Duty

VALDEL ENGINEERS &

CONSTRUCTORS PVT LTD

GAS COMPRESSOR PROJECT

5.2 DUTY CLASS Capacitor Duty

5.3 RATING 1.2 times Feeder Rating (Min)

5.4 AUX. CONTACTS 2 N.O and 2 N. C

6 TECHNICAL PARTICULARS OF CAPACITOR BANK

6.1 TYPE *

6.2 CONNECTION *

6.3 RATED VOLTAGE *

6.4 RATED CURRENT *

6.5 FREQUENCY *

6.60 OUTPUT KVAR *

6.7 MICROFARAD *

6.8 DUTY *

6.9 DISCHARGE RESISTOR VALUE *

6.10 NO. OF PHASES *

6.11 TOTAL HIGHT *

6.12 SUITABLE FOR PANEL MOUNTING *

6.13 MAX. TEMP. RISE PERMISSIBLE *

NOTE :

2. THE RATING OF TRANSFORMER INDICATED IS TENTATIVE.THE EXACT RATING SHALL BE WORKED OUT

0 01.02.12 SLC SLC

REV. DATE DESCRIPTION PREPD. CHKD. APPD.

FV7555-1/2

DURING DETAIL ENGINEERING.

ISSUED FOR BID MMR

1. DATA MARKED ` * ' IS TO BE FILLED UP BY VENDOR ALONG WITH BID.

DATA SHEET FOR PAGE No. :11 OF 11

LT CAPACITOR CONTROL PANEL CONTRACT No.: 9500 VE

SHT. 2 OF 2 REV. 0

DOC. No. : 9500-75-1055 ITEM. No.: QTY.:

PROJECT : REQN. No.: GSPL-207-E-6108

6.14 CONSTRUCTION

6.15 INSULATION LEVEL *

6.16 TYPE OF MOUNTING ARRANGEMENT THE PANEL *

6.17 CAPACITOR DISCHARGE TIME *

6.18

(a) 5 kVAR *

(a) 2 kVAR *

(a) 1 kVAR *

7 APFC PANEL

7.1 AUXI. SUPPLY LEVEL *

7.2 NO. OF CHANNEL *

7.3 AUTO / MANUAL SELECTION *

7.4 DISPLAY TYPE *

7.5 DEGREE PROTECTION *

7.6 TYPE *

8 SINGLE PHASE PREVENTION

8.1 SPP *

8.2 Hooter *

9 COMPONENTS

9.1 Bus Bar

9.1.1 Material Aluminium

9.1.2 Heat Shrinkable PVC Sleeve Required

9.1.3 Rating *

9.1.4 Main Bus bar Position *

9.1.5 Material of Bus bar Support *

9.2 Earth Bus

9.2.1 Material Aluminium

9.2.2 Min Size 50 * 6

9.3 Isolators

9.3.1 Make /Type *

9.3.2 Rating *

9.4 Accuracy Class of Instruments *

9.5 MCB's make

9.5.1 MCB's Rating *

9.6 ELCB's Make

9.6.1 ELCB's Rating / No of Poles *

9.7 MCCB *

9.8 Cable Entry *

9.9 Cable Glands & Lugs *

9.10 Spare Feeders *

FV7555-2/2

VALDEL ENGINEERS &

CONSTRUCTORS PVT LTD

GAS COMPRESSOR PROJECT

CAPACITOR MODULE FOR EWPL TOP-2 (50 KVAR)