Technical Schedules

8/13/2019 Technical Schedules

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5.8 MGD Seawater Desalination Project

Tender Enquiry Document for 110 kV Switchyard

FICHTNER India Doc. No.6104-EL-SPC-610-001P2Sec B3-Swyd

Rev. : R0 Page : B3 : 1

SSEECCTTIIOONNBB33

Technical Schedules


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Table of Contents

1.0 SWITCHYARD TECHNICAL DETAILS ............................................................................... 3

2.0 EHV CIRCUIT BREAKERS .................................................................................................... 4

3.0 EHV ISOLATORS WITH EARTH SWITCH.......................................................................... 7

4.0 EHV CURRENT TRANSFORMERS....................................................................................... 9

5.0 EHV VOLTAGE TRANSFORMERS .................................................................................... 10

6.0 LIGHTNING ARRESTERS.................................................................................................... 12

7.0 EHV SWITCHYARD CONTROL PANEL............................................................................ 13

8.0 MISCELLANEOUS ITEMS................................................................................................... 16

9.0 CABLES.................................................................................................................................. 19

10.0 ILLUMINATION SYSTEM ................................................................................................... 21

11.0 GENERAL ELECTRICAL ITEMS ........................................................................................ 22

12.0 EARTHING LIGHTNING PROTECTION ............................................................................ 22

13.0 TARIFF METERING PANEL (MAIN & CHECK) ............................................................... 23

14.0 BATTERY.............................................................................................................................. 24

15.0 BATTERY CHARGER........................................................................................................... 26


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SECTION B3

TECHNICAL SCHEDULES

Bidder shall furnish the following technical particulars for the equipment offered by him.

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Sl. No. Description Unit Particulars/

Data

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1.0 SWITCHYARD TECHNICAL DETAILS

1.1 Rated voltage kV

1.2 1.2 / 50 micro sec impulse withstand voltage kV peak

1.3 One min. power frequency withstand voltage kV

1.4 Current ratings

a. Continuous for main bus Amps

b. Continuous for bay buses Amps

1.5 Minimum air clearance

a. Phase to phase mm

b. Phase to ground mm

c. Live point to ground mm

d. Section clearance mm

1.6 Bay width m

1.7 Phase to phase spacing m

1.8 Size of the switchyard m x m

1.9 Design tensions

a. Main bus kg

b. Bay bus kg

c. End towers (for connections to line) kg

1.10 Total creepage distance for all equipment mm

1.11 Protected creepage distance mm


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Sl. No. Description Unit Particulars /

Data

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1.12 Factor of safety adopted for the structural design

a. Normal condition

b. Short circuit condition

c. Seismic condition

1.13 Visual discharge voltage for all equipment with kV

fitting & insulator assemblies for falling power

frequency voltage

1.14 Radio interference voltage for all the switchyardequipment with fittings & insulator assemblies

RIV level micro volts

1.15 Type of design for main & bay buses

a. Strung bus or tubular bus

b. Material

2.0 EHV CIRCUIT BREAKERS

2.1 Make, type, country of manufacture

2.2 Applicable standard

2.3 Rated voltage kV

2.4 Type of circuit breaker

2.5 Reference ambient temperature C

2.6 Rated continuous current Amp

2.7 a. Rated short circuit breaking current

and rated making current kA

b. Short circuit withstand current kA / sec

rating & duration

2.8 Temperature rise of contacts over an

ambient of 50C while carrying rated current C


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Data

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2.9 Rated operating duty

2.10 Total break time m.sec

2.11 Total make time m.sec

2.12 Rated transient recovery voltage for

short line faults kV

2.13 No. of breaks in series

2.14 Insulation level

a. One minute P.F withstand voltage kV peak

b. Impulse withstand voltage kV peak

c. Switching surge withstand voltage kV peak

2.15 Minimum clearance in air

a. Between live parts mm

b. Between live parts & earth mm

c. Centre to centre distance between phases mm

2.16 Trip free Yes / No

2.17 Type of operating mechanism

2.18 Normal method of tripping

2.19 Emergency method of tripping

2.20 No. of trip coils

2.21 Rated voltage and permissible variations:

a. for Trip coils

b. for Closing coils

c. for Operating mechanism motor


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Data

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2.22 Burden (watts)

a. Trip coils

b. Closing coils

2.23 Rated line charging current

2.24 Rated cable charging current

2.25 Maximum over voltage when switching off

a. Unloaded transformer

b. Unloaded lines

c. Cable charging

d. Capacitor banks

2.26 When switching off asynchronous system

a. Maximum current kA

b. Maximum recovery voltage between contacts

2.27 No. of operation circuit breakers can perform

without inspection, replacement of contacts

a. At rated breaking current

b. At rated continuous current

2.28 Creepage distance for the interrupter insulator mm

2.29 Type and creepage distance for the support insulator mm

2.30 Cantilever strength of circuit breaker at the

terminal pad kg

2.31 Whether pressure switches for Sulphur hexafluoride

pressure low alarm, trip, lockout closing, lockout

opening are provided.


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Data

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2.32 Leakage rate of Sulphur hexafluoride per year. % / year

3.0 EHV ISOLATORS WITH EARTH SWITCH

3.1 Make, type, and country

of manufacture

3.2 Reference standard

3.3 Rated voltage & frequency Volts, Hz

3.4 Rated current A

3.5 Reference ambient temperature C

3.6 Short time withstand current &

duration kA Sec

3.7 a. Dynamic withstand current kA peak

b. Max. current isolator can safely interrupt A

c. Transformer magnetising current breaking A

d. Making current (for earth switch only) A

3.8 Maximum temperature rise of current

carrying parts

3.9 Insulation test values

a. One minute power frequency wet

withstand voltage

i. Between poles & earth kVii. Across isolating distance kV

b. Impulse withstand voltage

i. Between poles & earth kV peak

ii. Across isolating distance kV peak


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Data

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3.10 Material

a. Main contact

b. Arcing contact

c. Current carrying parts

3.11 Whether contacts are silver faced

3.12 Clearance

a. Between poles mm

b. Between live parts earth mm

c. Between live parts when switch is open mm

i. Between same pole mm

ii. Between adjacent pole mm

3.13 Phase spacing

3.14 Type of interlock

a. External

b. Earth switch

3.15 Insulators

a. Type of insulator (solid core)

b. Cantilever strength

c. Total creepage distance

d. Applicable standards

3.16 Operating mechanism (motor / manual)

a. Main blade

b. Earth blade


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Data

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4.0 EHV CURRENT TRANSFORMERS

4.1 Make & country of manufacture

4.2 Applicable standards

4.3 Rated voltage class

4.4 Insulation withstand level :

a. Impulse withstand voltage kV peak1.2 / 50 micro sec wave

b. One minute power frequency kV rms

withstand voltage

4.5 Number of cores per CT

4.6 Whether it is possible to adjust tap Yes / No

setting of any core independent of

other cores

4.7 Relaying cores

a. Accuracy class (for 5P20)

b. Rated burden (for 5P20) VA

c. Accuracy limit factor (5P20)

d. Minimum knee point voltage Volts

VK for PS class

e. Maximum excitation current mA

at VK, VK/2 volts (PS class)f. Maximum secondary resistance (PS class) Ohms

4.8 For metering cores:

a. Accuracy class

b. Rated burden VA

c. Rated power factor


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Data

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d. Instrument security factor

4.9 Short time thermal current rating

a. Current kA

b. Rated time sec

4.10 Dynamic current rating kA peak

4.11 Maximum temperature rise of

winding at rated primary current and

rated burden, when referred to specifiedambient temperature C

4.12 Class of insulation of winding

4.13 Cantilever strength at terminal kg

4.14 Type and creepage distance of insulator housing m

5.0 EHV VOLTAGE TRANSFORMERS

CVT EMVT

-------------- ------------

5.1 Manufacturer & country of manufacture


5.3 Type of VT

5.4 Insulation withstand level

a. Impulse withstand voltage kV peak

1.20/50 micro sec. wave

b. One minute power frequency kV rms

withstand voltage

5.5 Number of secondary windings for each VT

5.6 Rated primary voltage kV

5.7 Rated secondary voltage V


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Data

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CVT EMVT

-------------- ------------

5.8 Rated VA burden for each

each secondary winding VA

5.9 Rated power factor

5.10 Accuracy class for each secondary winding

a. Winding 1

b. Winding 2

5.11 Method of connection

a. Primary winding

b. Each secondary winding

i. Winding 1

ii. Winding 2

5.12 Rated voltage factor

5.13 Maximum temperature rise of winding C

at 110% excitation and rated burden when

referred to specified ambient temperature

5.14 Class of insulation of windings

5.15 Capacitor data

a. High voltage capacitance PF

b. Intermediate voltage capacitance PF

c. Nominal intermediate voltage kV

d. Equivalent capacitance for carrier coupling PF

e. Maximum permissible impedance at power

frequency of carrier coupling device Ohms

5.16 Insulator type and total creepage distance mm


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Data

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CVT EMVT

-------------- ------------

5.17 Radio interference voltage Volts

5.18 Details of high speed switch(es) on secondary

winding (alternative to fuses)

a. Make, type, coil rating other technical details A

5.19 Cantilever strength kg

6.0 LIGHTNING ARRESTERS

6.1 Make, type & country of

manufacture

6.2 Arrester type


6.4 Arrester class

6.5 Rated arrester voltage kV

6.6 Rated frequency Hz

6.7 Nominal discharge current

(8/20 micro sec wave) kA

6.8 Minimum discharge capability KJ / kV

6.9 Residual voltage corresponding to kV peak

a. Steep current impulseb. Lightning impulse

6.10 Reference current (IEC TC37-WG-4 1985) A

6.11 Reference current (IEC TC37-WG-4 1985) kV rms

6.12 Over voltage withstand capability for

a. 10 cycles kV rms

b. 1 second kV rms

c. Continuous kV rms


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Data

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6.13 Energy discharge capacity KJ / kV

6.14 Maximum residual voltage at nominal

discharge current kV rms

6.15 Discharge voltage at 5 kA kV peak

discharge current

6.16 Discharge voltage at 10 kA

discharge current kV peak

6.17 Discharge voltage at 20 kAdischarge current kV peak

6.18 Impulse current withstand

a. High current short duration

(4 / 10 micro second wave) kA peak

b. Low current long duration A peak

c. Virtual duration of rectangular wave micro-second

6.19 One minute power frequency (dry) kV rmswithstand voltage of arrester housing

6.20 Impulse withstand test voltage of

arrester housing with 1.2/50 micro-second wave kV peak

6.21 Total creepage distance of whole arrester housing mm

6.22 Cantilever strength of complete arrester kg

6.23 Pressure relief class (as per IEC 99)

7.0 EHV SWITCHYARD CONTROL PANEL

7.1 Make

7.2 a. Degree of protection for

enclosure of panel

b. Sheet steel thickness mm


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Data

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7.4 Indicating meters

a. Meter size

b. Accuracy

c. Type

7.5 KWH METER

a. Accuracy

b. Whether pulse transmitting facility provided Yes / No

7.6 TRI VECTOR METER

a. Make

b. Type

7.7 TRANSDUCERS

a. Accuracyb. Output current mA DC

c. No. of channels

d. Type no. & make

7.8. Describe annunciators scheme,

features, sequence and size as

offered (please attach write-up) Yes/No

7.9 Mimic material and width mm

7.10 Indication lamps

a. Make

b. Type

c. Rating, voltage / watts V/W


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Data

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7.11. Push buttons

a. Make

b. Number included

c. No. of NO + NC contacts

d. Function

7.12. Semaphore indicator

a. Make

b. Rating Watts

c. No. of coils No.

d. Size offered

i. for CB

ii. for isolator main & earth switch

e. nos. offered

7.13. Control Switch. / Selector Switch.

a. Make

b. Rating (DC inductive breaking capacity) V/ Amps

7.14. Hooter / Bell

a. Make

7.15. EHV Switchyard Relay Panel

a. Panel make and country of manufacture

b. - Degree of protection for

enclosure of panel

- Sheet steel thickness mm

c. Mounting of relays


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Data

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d. Relay Particulars

(furnish following data

as applicable for all the relays offered.

Attach necessary sheets as required)

- Control voltage V

- Current rating A

- Voltage rating V

- Operating temperature range C

- Applicable standards

- Aux. supply operating range

- Online automatic testing facility provided

- Online manual testing facility provided

e. Relay types offered (list each relay and

furnish the data for each relay used)

f. All the relays offered are type tested Yes/No

8.0 MISCELLANEOUS ITEMS

8.1 ACDB / DCDB (fill in separately for ACDB & DCDB)

a. Make

b. Type (Draw-out / non drawout)

c. Sheet steel thickness mmd. Degree of protection

e. Busbar details

- Material

- Rated voltage

- No. of phases


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Data

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- Current rating

- Fault level withstand

f. No. of switch fuse feeders x

ratings :

1 x incomer x .A

X outgoing x .A

8.2 Insulator and hardware (fill in forbus post insulator as well as

insulator string)

a. Insulator / Insulator string

- Manufacture & country of manufacture

- Applicable standard

- Type of insulator (antifog / normal)

- Insulating material

- No. of units per string

- Creepage distance

i. Disc unit mm

ii. String assembly mm

- One minute power frequency

withstand (dry)

i. Single disc kV

ii. String assembly / buspost kV

- One minute power frequency

(wet) withstand

i. Disc unit kV

ii. String assembly / buspost kV


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Data

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- Impulse withstand voltage (dry)

i. Disc unit kV peak

ii. String assembly / buspost kV peak

- impulse withstand voltage (wet) kV peak

i. Disc unit kV peak

ii. String assembly / buspost kV peak

- Electro mechanical strength of

each disc kg

- Live parts to earth clearance

(sparkover distance) mm

- Cantilever strength (for bus post

insulator only) kg

- Tensile strength (for bus post

insulator only) kg

- Visual discharge voltage for falling

power frequency voltage (string and

bus post insulators) kV

- Compression strength (for bus post

insulator only) kg

- Radio interference voltage for string

and bus post insulator

i. Test voltage kV

ii. Radio interference voltage micro volt

8.3 INSULATOR HARDWARE

a. Manufacture

b. Applicable standard

c. All ferrous parts are hot dip galvanised Yes/No


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Data

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8.4 BUS CONDUCTORS, CLAMPS AND CONNECTORS

a. Flexible conductor ACSR

- Size of conductor for main bus &

bus coupler bay buses

- Size of conductor for other bay buses

- The temperature rise of the conductor

while carrying the rated current

- Purity of aluminium / copper %

8.5 Clamps and Connectors

a. Whether material specification of the Yes/ No

clamping and connectors are

as per specification

b. Temperature rise of the clamp while

carrying the rated current C

c. Minimum thickness at any part of the clamps mm

d. Coronal extinction voltage for

falling power frequency voltage V

9.0 CABLES

9.1 Make

9.2 Type

9.3 Applicable standard

9.4 Voltage grade

9.5 Maximum conductor temperature

a. Continuous C

b. Short time C


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Data

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9.6 Conductor

a. Material

b. Size sq.mm

c. No. & diameter of wire in

each conductor No. / mm

9.7 Insulation

a. Material

b. Type

c. Thickness mm

9.8 Inner sheath

a. Material

b. Type

c. Thickness mmd. Extruded?

e. Approx. outside dia over sheath mm

9.9 Armouring

a. Material

b. Size

c. D.C resistance at 20 ohm / km

9.10 Outer sheath

a. Material

b. Type

c. Thickness


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Data

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9.11 Approx. overall diameter mm

9.12 Standard drum length with tolerance mm

9.13 Net weight of cables kg / km

10.0 ILLUMINATION SYSTEM

10.1 Lighting Fixtures

a. For outdoor switchyard

i. Type

ii. Make

iii. Quantity x Watts

iv. Designed lux level

b. For switchyard control room

i. Type

ii. Make

iii. Quantity & wattsiv. Designed lux level

c. For Battery room

i. Type

ii. Make

iii. Quantity & watts

iv. Designed lux. level

10.2 Lighting Panel

a. Make

b. No. of ways / circuits

c. Incoming TPN MCB with ELCB rating / make

d. Outgoing SP MCBs.

i. Number

ii. Rating


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Data

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10.3 WIRING

a. Main cables type / size

b. Cables to fixtures type / size

c. Method of cabling conduit / size

11.0 GENERAL ELECTRICAL ITEMS

11.1 Cable Trays

a. Makeb. Type

c. Width

11.2 Cable ties, clamps,

identification tags, etc. provided?

11.3 Rigid metal conduits, RCC hume pipes

offered for Trench / rail crossing / in

equipment foundations?

11.4 Fence height / material details

11.5 Granite metal work

a. Size of metal

b. Depth of spreading

11.6 All other standard items like hand

gloves, shock treatment charts, rubber

mats caution boards etc. furnished? Yes/No

12.0 EARTHING LIGHTNING PROTECTION

12.1 Earthing

a. Main grid conductor

i. Material

ii. Cross section

b. Equipment connections

i. Material

ii. Cross section


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Data

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13.0 TARIFF METERING PANEL (MAIN & CHECK)

13.1 Make of tri-vector meter

13.2 Rated voltage & frequency (110V / 50 Hz) V / Hz

13.3 Rated current (1 amp) Amp

13.4 Type (Digital type)

13.5 Accuracy class (0.2)

13.6 Burden at rated voltage VA

13.7 Is the Tri-vector meter bi-directional type

13.8 Is the Tri-vector meter suitable for 2 part tariff

13.9 Auxiliary power supply requirement (110V DC 10%) V DC

13.10 Does the tri-vector meter have maximum demand indicatoras called for in the specification

i) Does the tri-vector meter have

ii) A serial port suitable for Ethernet protocol

iii) A telemetry port for future communication through

telephone lines

13.11 Construction of panel :

i) Panel sheet steel thickness mm5

ii) Cable entry

iii) Access to the panel

iv) Ingress protection class

v) Panel space heater (hygrostatically controlled)

vi) Panel illumination & small power socket

vii) Size of panel wiring mm


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Sl. No. Description Particulars/

Data

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14.0 BATTERY

14.1 Battery

14.2 Manufacturer

14.3 Type of battery

14.4 No. of batteries

14.5 Number of cells

14.6 Voltage rating

- Nominal cell voltage rating

- Nominal float charging voltage

- Nominal boost charging voltage

- Nominal cell discharge voltage

14.7 10 hour rating at 27C to 1.85 V / cell

14.8 One (1) minute rating to 1.85 V cell

14.9 Rated capacity at maximum ambient

temperature (50C) AH

14.10 Rated capacity at minimum ambient

temperature (8.5C) AH

14.11 Continuous load and duration

14.12 a. Type of plates

- Positive

- Negative

b. Type and material of container

14.13 Type of rack

14.14 Number of racks / battery


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Data

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14.15 Number of cells / rack

14.16 Type of rack rows / tiers

14.17 Inter row, inter tier connectors

and end take off furnished? Yes/ No

14.18 Connection hardware with 5%

extra furnished? Yes/ No

14.19 Cable termination at positivenegative and intermediate tap

provided?

14.20 Recommended specific gravity of

electrolyte at the end of full charge Yes/ No

and at first filling

14.21 Type of separator

Material and thickness of separator

14.22 Float charging current

14.23 Boost charging current

(initial & final)

14.24 Internal resistance of one cell

14.25 Short circuit current for dead short

Across battery terminals at

14.25.1 Float charge voltage (in kA)

14.25.2 Boost charge voltage (in kA)

14.25.3 Equalising charge voltage

14.25.4 Only due to battery (in kA)

14.26 Cell voltage characteristics during

charging furnished? Yes/No


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Data

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14.27 Charging current of a fully

discharged battery at 12 hours

charging rate

14.28 Charging efficiency of the battery

14.29 Overall dimension of

14.29.1 Each cell (L x B x H)

14.29.2 Battery(L x B x H)

14.29.3 Battery layout furnished Yes/ No

14.30 Approximate weight (kgs)

1430.1 Each cell

14.30.2 Complete battery

14.31 List of accessories

14.32 Spare parts as specified

provided with equipment

14.33 Ventilation requirements

15.0 BATTERY CHARGER

Float cum

Boost Charger

15.1 Manufacturer type and ref.

standard

15.2 Input voltage with % variation

15.3 Input frequency with % variation

15.4 Output DC voltage

15.5 Output current


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Data

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15.6 Time required to fully charge the

completely discharged battery under

boost charging

Float cum

Boost Charger

15.7 Maximum AC input during boost charging

15.8 Ripple in DC output

15.9 Charger efficiency at rated output

15.10 Temperature rise above ambient of 50C

15.11 Regulation for 0-100% rated load

with 10% voltage variation and

- 5% to + 5% frequency variation

15.12 Power factor at rated load

15.13 Charger provided with

a. Automatic voltage Yes/No

b. Current limiting circuitry and constant current regulator Yes/No

c. Smoothing filter circuit Yes/No

d. Soft start feature Yes/No

15.14 SCR elements provided with

a. Surge protection

b. Fast acting semi conductor fuses

15.15 AC Switch

a. Make

b. Type

c. Rating


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Data

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15.16 AC Contactor

a. Make

b. Type

c. Rating

d. Coil rating

Float cum

Boost Charger

15.17 AC / DC fuse

a. Make

b. Type

15.18 Rectifier transformer

a. Make

b. Type

c. Rating

d. Insulation classe. Voltage ratio

15.19 Blocking diodes

a. Make

b. Type

c. Current rating for 1 minute / 1 hour

d. Peak inverse voltage continuous / surge

15.20 SCR

a. Make

b. Type

c. RMS current rating

d. Peak inverse voltage continuous / surge

e. Max. temp rise above an ambient of 50C


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Data

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15.21 DC Contactor

a. Make

b. Type

c. Rating

15.22 Indicating lamps

a. Make

b. Wattagec. Rating

15.23 Push Button

a. Make

b. Type

c. Rating

d. No. of contacts

15.24 Meters

a. Make

b. Type

c. Accuracy

d. Size

15.25 Control terminals

a. Make

b. Type

c. Rating


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Data

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15.26 Annunciator

a. Make

b. Type

c. No. of windows

15.27 DC Switch

a. Makeb. Type

c. Rating

15.28 Panel

a. Make

15.29 List of accessories

15.30 Heat output of the panel

(furnish calculations)

15.31 Overall dimensions of

battery charger panel

15.32 Approximate weight of charger panel

15.33 Schematic diagram and write up Yes/ No

of charger enclosed?

15.34 Spare parts as specified

provided with equipment

SIGNATURE OF BIDDER _________________________

NAME _________________________

DESIGNATION _________________________

COMPANY SEAL DATE _________________________


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SSEECCTTIIOONNBB44

Approved Vendor List


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P2S B4 S d

SECTION B4

APPROVED VENDOR LIST

1. 110 kV circuit breakers - ABB / CGL / Siemens / Alstom

2. 110 kV isolators - Hivelm / Elpro / Versatek

3. 110 kV current transformer - ABB / CGL / Alstom

4. 110 kV voltage transformer - ABB / CGL / Alstom

5. 96 kV surge arrestors - Oblum / Lamco / CGL / Alstom / Elpro

6. Control and relay panels - ABB / Elpro / Alstom / Enpro

7. Protection relays - ABB / Siemens / Alstom

8. Tariff meters - L&T / SEMS

9. Insulators - WSI / JSI / Modern

10. Battery & battery charger - Exide / HI-rel / Power Electronics / SAFT

NIFE / Amararaja

Documents

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