unit substation

Customer: AMECProject: Chucapaca Project Your Ref: 169249-0000-141-RFP-0001Our Ref:840354

Technical Specification

Unit Substations of 27

TECHNICAL SPECIFICATION

UNIT SUBSTATIONS




1. EXECUTIVE SUMMARY.......................................................................3

2. TECHNICAL SPECIFICATION..............................................................42.1 GENERAL DESCRIPTION..........................................................42.2 REFERENCE STANDARS..........................................................42.3 PANEL SUMMARY......................................................................52.4 BILL OF MATERIAL.....................................................................7

2.4.1 UNIT SUBSTATION 23/0.48 kV, 250 kVA for Truck Shop................................................................................7

2.4.2 UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for Crushing92.4.3 UNIT SUBSTATION 23/4.16 kV, 10 MVA for Flotation

and Regrinding..............................................................112.4.4 UNIT SUBSTATION 23/4.16 kV, 7.5 MVA for CIL

Process Area.................................................................142.4.5 UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for Acid

Wash-Elution Area........................................................172.4.6 UNIT SUBSTATION 232/0.48 kV, 500 kVA for Reagent192.4.7 UNIT SUBSTATION 23/0.4 – 0.231 kV, 500 kVA for

Camp and Accomodation..............................................212.4.8 UNIT SUBSTATION 23/0.4 – 0.231 kV, 250 kVA for

Plant Area.....................................................................232.4.9 UNIT SUBSTATION 23/0.4 – 0.231 kV, 2 MVA for Water

Supply Station...............................................................25

3. COMPLIANCE RESPONSE – TECHNICAL........................................27




1. EXECUTIVE SUMMARY

After reviewing AMEC Perú specification, ABB is flexible in adjusting any technical detail offered with this tender in order to the customers requirements.

We propose to supply a complete Unit Substations Electrical covering its design, manufacture, testing and supply.

For information in commercial issues, please refer to commercial offer.

UNIT SUBSTATION




2. TECHNICAL SPECIFICATION

2.1 GENERAL DESCRIPTION

This specification covers the technical requirements for the design, construction and testing of Unit Substations that combine incoming Medium Voltage section, 3-phase Power Transformer, and secondary Medium Voltage equipment or Low Voltage equipment.

Unit Substations will be installed at Chucapaca project, located at 5000 m.a.s.l. The ambient design temperature is according to the Site Data and Project Requirements 169249-0000-131-SPC-0001.Unit Substations will be suitable for outdoor installation, as specified on the Data Sheet.

Futhermore:

23 kV Metal Enclosed load interrupter switchgear with fuses:

Metal enclosed load interrupter switchgear with fuses shall be utilized for transformers from 500 KVA to 3750 KVA.

23 kV Metal Enclosed Breaker:

Circuit breaker will be SF6 type, fixed mounted, electrically operated, stored energy operation type. Breaker ratings and operating voltages shall be as shown on the Data Sheet. The breaker shall be complete with closing and tripping mechanisms, auxiliary switches, holding coils, relays, mechanical position indicators (closed-open), operation counters and accessories.

2.2 REFERENCE STANDARS

The design, fabrication / field erection (where applicable), inspection and testing of the equipment shall comply with the latest edition (including addenda) of applicable codes / standards issued by the following organizations:

ANSI American National Standards Institute.IEEE Institute of Electrical and Electronic Engineers.NEMA National Electrical Manufacturers Association.NFPA National Fire Protection Association.UL Underwriters Laboratories, Inc.OSHA Occupational Safety and Health Administration.ASME American Society of Mechanical Engineers.AlSI American Iron and Steel Institute.AWS American Welding Society.




2.3 PANEL SUMMARY

Item Description Tags Qty

1

UNIT SUBSTATION 23/0.48 kV, 250 kVA for Truck Shop.MV FUSED SWITCH, 23 kV, 600 A, 25E.TRANSFORMER 250 kVA, 23/0.48kV

1220-US-001

1

2

UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for CrushingMV FUSED SWITCH, 23 kV, 600 A, 150ETRANSFORMER 3 MVA, 23/0.48kV.

3100-US-001 1

3

UNIT SUBSTATION 23/4.16 kV, 10 MVA for Flotation and Regrinding.MV SWITCHGEAR 23 kV, BREAKER 1200ATRANSFORMER 10 MVA, 23 / 4.16 kV.

3400-US-0011

4

UNIT SUBSTATION 23/4.16 kV, 7.5 MVA for CIL Process AreaMV SWITCHGEAR 23 kV, BREAKER 1200ATRANSFORMER 7.5 MVA, 23 / 4.16 kV

3500-US-001 1

5

UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for Acid Wash-Elution AreaMV FUSED SWITCH, 23 kV, 600 A, 150ETRANSFORMER 3.75 MVA, 23 / 4.16 kV

3600-US-001 1

6

UNIT SUBSTATION 232/0.48 kV, 500 kVA for Reagent StorageMV FUSED SWITCH, 23 kV, 600 A, 25E.TRANSFORMER 500 kVA, 23/0.40 - 0.23kV.

3900-US-001 1




7

UNIT SUBSTATION 23/0.4 – 0.231 kV, 500 kVA for Camp and Accomodation.MV FUSED SWITCH, 23 kV, 600 A, 25ETRANSFORMER 500 kVA, 23/0.40 - 0.23kV

5100-US-001 1

8

UNIT SUBSTATION 23/0.4 – 0.231 kV, 250 kVA for Plant Area.MV FUSED SWITCH, 23 kV, 600 A, 25E.TRANSFORMER 250 kVA, 23/0.40 - 0.23kV

5200-US-001 1

9

UNIT SUBSTATION 23/0.4 – 0.231 kV, 2 MVA for for Water Supply Station.MV FUSED SWITCH, 23 kV, 600 A, 450ETRANSFORMER 2 MVA, 23 / 4.16 kV

7200-US-001 1

10

UNIT SUBSTATION 23/0.4 – 0.231 kV, 2 MVA for for Water Supply Station.MV FUSED SWITCH, 23 kV, 600 A, 450ETRANSFORMER 2 MVA, 23 / 4.16 kV.

7200-US-002 1

11

UNIT SUBSTATION 23/0.4 – 0.231 kV, 2 MVA for for Water Supply StationMV FUSED SWITCH, 23 kV, 600 A, 450E.TRANSFORMER 2 MVA, 23 / 4.16 kV

7200-US-003 1




2.4 BILL OF MATERIAL

2.4.1 UNIT SUBSTATION 23/0.48 kV, 250 kVA for Truck Shop

Approximate dimensions of Unit Substation:

6506x6400x5000mm, The specific requirements for each Unit Substation shall be indicated on the individual.Equipped with:

Switchgear:23 kV Metal Enclosed load interrupter switchgear with fuses. MV FUSED SWITCH, 23 kV, 600 A, 25E. The switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position. The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.




23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 630 A, 40 kA, 25E. Local manufacturing, ABB brand

Qty.: 01

Unit Electrical Characteristics:

Nominal voltage: 24 kV Service Voltage: 23 kV

Rated main busbar: 1250 A Short circuit current:

40 kA (1s)

Test Voltage (60 Hz/1 min.): 50 kV Test voltage impulse:

125 kV

Mechanical characteristics of the Unit:

Degree of Protection: Nema 4 Front doors Color:

RAL7035

Exterior Dimensions: Widht: 2200 mm, Hight: 2800 mm, Depth: 2300 mm.

equipment Included:

1

Set of shunt bars electrolytic copper of 630A

1

Set of lightning, size 2, ABB or similar mark

1

Disconnector NALF 40.5 KV with 03 fuse

1

Set of with 03 fuse 25E

1

Set of materials minor and mini-switches, terminal blocks, signs, etc

1

Nema 4 metal enclosure




Transf

Tr

TRANSFORMER 250 kVA, 23/0.48kV

The minimum following accessories is provided with the equipment:

Magnetic liquid level gauge with alarm contacts Oil dial type thermometer with trip and alarm contacts Winding thermometer with alarm contacts Pressure vacuum gauge with trip and alarm contacts Pressure test connection Filling plug and filter press connection Combination drain valve and bottom filter press connection Sampling device Nameplate, including wiring diagram Manhole or handhole in cover Provision for lifting and jacking.




2.4.2 UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for Crushing

Approximate dimensions of Substation:

6506x6400x5000mm, The specific requirements for each Unit Substation shall be indicated on the individual.

Equipped with:

Switchgear:23 kV Metal Enclosed load interrupter switchgear with fuses. MV FUSED SWITCH, 23 kV, 600 A, 150E. The switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position. The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.





Qty.: 01



Rated main busbar: 1250 A Short circuit current: 40 kA (1s)

Test Voltage (60 Hz/1 min.): 50 kV Test voltage impulse:

125 kV



RAL7035


equipment Included:

1Set of shunt bars electrolytic copper of 630A

1Set of lightning, size 2, ABB or similar mark

1Disconnector NALF 40.5 KV with 03 fuse

1Set of with 03 fuse 150E

1Set of materials minor and mini-switches, terminal blocks, signs, etc

1Nema 4 metal enclosure




TRANSFORMER 3.75 MVA, 23/ 4.16kV



NUETRAL GROUNDED RESISTOR

NEUTRAL GROUNDING RESISTOR, 2400 VOLTS L/N, 100 AMPERES, 10 SECONDS DUTY C/W 600 VOLTS CT RATIO 50:5 10P10 2.5 VA IN EXTERIOR ENCLOSURE NEMA 4, NAMEPLATE AND IPPC EXPORT SKID. FOR OPERATION AT 5000 M.A.S.L.

Product Type : Resistance to neutral groundItem Type : I-Gard Edge Wound ResitorElement Material : Stainless steel electrical grade low temperature coefficientCoef. Resistivity : 0.0002 Ohms / CVoltage : 2400 Volts L / N in the resistanceCurrent : 100 AmpsOperation : 10 secondsResistance : 24 Ohms + / - 10%Cabinet : Exterior NEMA 4 (without ventilation)Finish : Standard, ANSI Gray 61 (Powder coat 2mil)Estimated Dimensions : 32 "x 48" x 48 "tall




Dear Weight : 600 lbsFor operation at 5000 m.s.n.m.Seismic Zone 3other:Current Transformer 600 volts, ratio 50: 5 10P10 2.5 VARemovable side coversStainless steel screws

2.4.3 UNIT SUBSTATION 23/4.16 kV, 10 MVA for Flotation and Regrinding

Approximate dimensions of rooms:


Equipped with:

Switchgear:23 kV Metal Enclosed Breaker:MV SWITCHGEAR 23 kV, BREAKER 1200A ,Breaker enclosure is NEMA 4 or as indicated on Data Sheets, flanged mounted to transformer.Circuit breaker is three-pole vacuum or SF6, fixed mounted, electrically operated, stored energy operation type. Breaker ratings and operating voltages is as shown on the Data Sheet. The breaker shall be complete with closing and tripping mechanisms, auxiliary switches, holding coils, relays, mechanical position indicators (closed-open) operation counters and accessories.Circuit Breakers is continuous and interrupting current ratings according to the drawings and Data Sheet.Breakers have padlock type lockout provision. Breakers is provided with a local “trip-close” control switch as specified on the drawings and Data sheet, with green and red pilot lights to indicate breaker “trip-close” positions on the front of unit panel. Provision in control wire terminations and scheme shall be made for breaker remote “close-trip” functions and monitoring lights.




23 kV Metal Enclosed Breaker: MV SWITCHGEAR 23 kV, BREAKER 1200A, 40 kA, Model ZX2, ABB brand

Qty.: 01




Test Voltage (60 Hz/1 min.): 50 kV Test voltage impulse: 125 kV


Degree of Protection: IP4X Front doors Color:

RAL7035


equipment Included:

1

Set of electrolytic copper bus bars of 1250A

1


1

Set of lightning Polim D, size 2, ABB or similar mark.

1

Voltage presence indicator on the front and rear

1

Disconnector three-position motorized 125VDC. Includes contact position.

1

ABB vacuum interrupter VD4X, fixed, 24kV, 1250A, 40kA, including: Moto operator for spring load at 125VDC, opening and closing coils 125VDC second opening coil, magnetic lock, counter operations, auxiliary contacts. It has locking mechanism between the switch and three-position.

1

Current Transformers 1250/1, Cl 5P20, 5VA .

1

Digital multifunction relay over current RET543 ABB, with protection 50/51, 50N/51N, 27/59, 67/67N, 46, 86, 74TC, 50BF, measuring 87T A, V, kW, kVA, kvar, kWh, PF, with IEC 61850 communication protocol, serial port RS485, RS232, 2 optical and 2 RJ45.

1

System of Heating and lighting.

-





.

Transformer section:1 TRANSF

TRANSFORMER 10 MVA, 23 / 4.16 kV.

The minimum following accessories shall be provided with the equipment:


NEUTRAL GROUNDED RESISTOR





Product Type : Resistance to neutral groundItem Type : I-Gard Edge Wound ResitorElement Material : Stainless steel electrical grade low temperature coefficientCoef. Resistivity : 0.0002 Ohms / CVoltage : 2400 Volts L / N in the resistanceCurrent : 100 AmpsOperation : 10 secondsResistance : 24 Ohms + / - 10%Cabinet : Exterior NEMA 4 (without ventilation)Finish : Standard, ANSI Gray 61 (Powder coat 2mil)Estimated Dimensions : 32 "x 48" x 48 "tallDear Weight : 600 lbsFor operation at 5000 m.s.n.m.Seismic Zone 3other:Current Transformer 600 volts, ratio 50: 5 10P10 2.5 VARemovable side coversStainless steel screws

2.4.4 UNIT SUBSTATION 23/4.16 kV, 7.5 MVA for CIL Process Area.


10200x9385x5000mm, The specific requirements for each Unit Substation shall be indicated on the individual.Equipped with:

Switchgear:

23 kV Metal Enclosed Breaker:MV SWITCHGEAR 23 kV, BREAKER 1200A, Breaker enclosure is NEMA 4 or as indicated on Data Sheets, flanged mounted to transformer.Circuit breaker is three-pole vacuum or SF6, fixed mounted, electrically operated, stored energy operation type. Breaker ratings and operating voltages is as shown on the Data Sheet. The breaker shall be complete with closing and tripping mechanisms, auxiliary switches, holding coils, relays, mechanical position indicators (closed-open) operation counters and accessories.Circuit Breakers is continuous and interrupting current ratings according to the drawings and Data Sheet.

Breakers have padlock type lockout provision. Breakers is provided with a local “trip-close” control switch as specified on the drawings and Data sheet, with green and red pilot lights to indicate breaker “trip-close” positions on the front of unit panel. Provision in control wire terminations and scheme shall be made for breaker remot “close-trip” functions and monitoring lights.

.




23 kV Metal Enclosed Breaker:MV SWITCHGEAR 23 kV, BREAKER 1200A, 40 kA, Model ZX2, ABB brand

Qty.: 01

Unit Electrical Characteristics:Nominal voltage: 24 kV Service Voltage: 23 kVRated main busbar: 1250 A Short circuit current: 40 kA (1s)Test Voltage (60 Hz/1 min.): 50 kV Test voltage impulse: 125 kVMechanical characteristics of the Unit:Degree of Protection: IP4X Front doors Color:

RAL7035

Exterior Dimensions: Widht: 800 mm, Hight: 2300 mm, Depth: 1860 mm.equipment Included:

1 Set of electrolytic copper bus bars of 1250A

1 Set of shunt bars electrolytic copper of 630A

1 Set of lightning Polim D, size 2, ABB or similar mark.

1 Voltage presence indicator on the front and rear

1 Disconnector three-position motorized 125VDC. Includes contact position.

1

ABB vacuum interrupter VD4X, fixed, 24kV, 1250A, 40kA, including: Moto operator for spring load at 125VDC, opening and closing coils 125VDC second opening coil, magnetic lock, counter operations, auxiliary contacts. It has locking mechanism between the switch and three-position.

1Current Transformers 1250/1, Cl 5P20, 5VA .

1

Digital multifunction relay over current RET543 ABB, with protection 50/51, 50N/51N, 27/59, 67/67N, 46, 86, 74TC, 50BF, measuring 87T A, V, kW, kVA, kvar, kWh, PF, with IEC 61850 communication protocol, serial port RS485, RS232, 2 optical and 2 RJ45.

1 System of Heating and lighting.

- Set of materials minor and mini-switches, terminal blocks, signs, etc




Transformer section:1 Tran

TRANSFORMER 7.5 MVA, 23 / 4.16 kV.

The minimum following accessories shall be provided with the equipment:








2.4.5 UNIT SUBSTATION 23/4.16 kV, 3.75 MVA for Acid Wash-Elution Area



Equipped with:

Switchgear:23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 600 A, 150E, The switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position.The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.




Transformer secti

TRANSFORMER 3.75 MVA, 23 / 4.16 kV



Qty.: 01

Unit Electrical Characteristics:Nominal voltage: 24 kV Service Voltage: 23 kVRated main busbar: 1250 A Short circuit current: 40 kA (1s)Test Voltage (60 Hz/1 min.): 50 kV Test voltage impulse: 125 kVMechanical characteristics of the Unit:Degree of Protection: Nema 4 Front doors Color:

RAL7035


equipment Included: 1 Set of shunt bars electrolytic copper of 630A

1 Set of lightning, size 2, ABB or similar mark

1 Disconnector NALF 40.5 KV with 03 fuse

1 Set of with 03 fuse 150E

1 Set of materials minor and mini-switches, terminal blocks, signs, etc

1Nema 4 metal enclosure








2.4.6 UNIT SUBSTATION 232/0.48 kV, 500 kVA for Reagent






Equipped with:

Switchgear: 23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 600 A, 25EThe switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position.

The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.




Transformer sect TRANSFORMER 500 kVA, 23/0.40 - 0.23kV


Magnetic liquid level gauge with alarm contacts Oil dial type thermometer with trip and alarm contacts Winding thermometer with alarm contacts Pressure vacuum gauge with trip and alarm contacts


Qty.: 01







RAL7035


equipment Included:

1


1


1


1


1


1





Pressure test connection Filling plug and filter press connection Combination drain valve and bottom filter press connection Sampling device Nameplate, including wiring diagram Manhole or handhole in cover Provision for lifting and jacking.

2.4.7 UNIT SUBSTATION 23/0.4 – 0.231 kV, 500 kVA for Camp and Accomodation.



Equipped with:




Switchgear: 23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 600 A, 25EThe switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position.The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.


Qty.: 01







RAL7035


equipment Included:

1


1


1


1


1


1





Transformer section

TRANSFORMER 500 kVA, 23/0.40 - 0.23kV






2.4.8 UNIT SUBSTATION 23/0.4 – 0.231 kV, 250 kVA for Plant Area.



Equipped with:

Switchgear:23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 600 A, 25EThe switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position.The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.




Transformer se

TRANSFORMER 250 kVA, 23/0.40 - 0.23kV.


Qty.: 01







RAL7035


equipment Included:

1


1


1


1


1


1





2.4.9 UNIT SUBSTATION 23/0.4 – 0.231 kV, 2 MVA for Water Supply Station.



Valid for Substations 1/ 2/ 3 , equipped with:

Switchgear: 23 kV Metal Enclosed load interrupter switchgear with fuses.MV FUSED SWITCH, 23 kV, 600 A, 450E.The switch is contained in an enclosed metal, free-standing enclosure. The switch handle is operable from the front, and the access door shall be mechanically interlocked so that the door can not be opened unless the switch is in the open position.The switch mechanism is of the stored energy type not dependent upon incremental motion of the operating handles. The switch compartment have a visible isolation viewing window. Switch enclosure is NEMA 4, flange mounted to transformer.




Transformer section:

TRANSFORMER 2 MVA, 23 / 4.16 kV.


Magnetic liquid level gauge with alarm contacts Oil dial type thermometer with trip and alarm contacts Winding thermometer with alarm contacts Pressure vacuum gauge with trip and alarm contacts


Qty.: 01







RAL7035


equipment Included:

1


1


1


1


1


1





Pressure test connection Filling plug and filter press connection Combination drain valve and bottom filter press connection Sampling device Nameplate, including wiring diagram Manhole or handhole in cover Provision for lifting and jacking.

3. COMPLIANCE RESPONSE – TECHNICAL

In case of an order, if we receive technical requirements, which are currently not in our hands, we reserve the right to adjust our prices resp. technical design accordingly.

Not included in our offer all equipment not expressly described (excluding those accessories and devices are essential for a good performance of the distribution panels).

unit substation

Documents

rated main

control wire

digital multifunction

tall dear

powder coat

serial port

ippc export

neutral grounding