36kV 1250A Outdoor disconnect switch with earth, manual type, porcelain insulator

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Product Description:

Specifications

1. Outdoor 145kV AC Bus and Line Disconnectors(ISOLATOR) 
2. KEMA test report 
3. ISO quality certificate 
4. Good quality

General introduction :

GW4-40.5/72.5/126/145/170/252 Ⅲ Series, two columns, horizontally rotating type, HV, AC, disconnector

 Product classifications and Main Technical Specifications :

1), Product classification 

Voltage level: 40.5kV, 72.5kV, 126kV, 145kV, 170kV, 252kV. 

Current level: 630A,1250A, 2000A, 2500A,3150A, 4000A. 

Auxiliary earthing switch type: none earthing switch, left earthing switch, right earthing switch, double earthing switches. 

2), Main Technical Specifications

 

Technical Specifications

Product Type

GW4-40.5Ⅲ

GW4-72.5Ⅲ

GW4-126Ⅲ

Rated voltage kV


40.5

72.5

126

The rated current A


1250, 2000, 3150, 4000

Disconnector

Rated peak withstand current kA

100, 125

Rated short-time withstand current (RMS)kA

40, 50

Rated short circuit duration s

4, 3

Grounding switch

Rated peak withstand current kA

100, 125

Rated short-time withstand current (RMS)kA

40, 50

Rated short circuit duration s

4, 3

Rated short-time power frequency withstand voltage (RMS) kV

to earth

95

160

230

across open contacts

118

200

230+70

Rated lightning impulse withstand voltage (peak) kV

to earth

185

350

550

across open contacts

215

410

550+100

minimum clearance in 1 min power frequency withstand voltage when ground blade closing to live part of disconnector


53

94

164

rated terminal static mechanic load N

longitudinal level

1000

1000

1000, 1250

Horizontal level

750

750

750

Vertical force

1000

1000

1000

switching micro-capacitance current A


2

2

2

switching micro-inductance current A


1

1

1

switching busbar for current transfer A (busbar transfer voltage 100V)


400V, 2500A, 100 times

Radio interference level


less than 500 μV

Mechanical life


3000

3000

3000

single pole weight (kg)


120

200

260

Note: All applied to an altitude of 2000m

 

 

Technical Specifications


GW4-145Ⅲ

GW4-170Ⅲ

GW4-252Ⅲ

Rated voltage kV


145

170

252

The rated current A


1250, 2000, 3150, 4000

Disconnector

Rated peak withstand current kA

100, 125

Rated short-time withstand current (RMS)kA

40, 50

Rated short circuit duration s

4, 3

Grounding switch

Rated peak withstand current kA

100, 125

Rated short-time withstand current (RMS)kA

40, 50

Rated short circuit duration s

4, 3

Rated short-time power frequency withstand voltage (RMS) kV

to earth

275

325

460

across open contacts

315

375

460+145

Rated lightning impulse withstand voltage (peak) kV

to earth

650

750

1050

across open contacts

750

860

1050+200

minimum clearance in 1 min power frequency withstand voltage when ground blade closing to live part of disconnector


188

221

291

rated terminal static mechanic load N

longitudinal level

1000, 1250

1500

1500

Horizontal level

750

1000

1000

Vertical force

1250

1250

1250

switching micro-capacitance current A


2

2

2

switching micro-inductance current A


1

1

1

switching busbar for current transfer A (busbar transfer voltage 100V)


400V, 2500A, 100 times

Radio interference level


less than 500 μV

Mechanical life (times)


3000

3000

3000

single pole weight (kg)


300

326

900

Note: All applied to an altitude of 2000m

 




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Distribution equipment including high voltage power distribution room, substation, power distribution transformer platform, low voltage power distribution room (box), ring network cabinet, cable branch box] outage maintenance,
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The indoor power distribution room with low voltage load is called the power distribution room,
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Such as measuring instrument, relay, switch, button operation and automatic control to provide some of these devices the energy supply device, signal equipment, computer equipment, and control cable (such as batteries, silicon rectifier, etc.).
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Transmission and transformation of basic electrical equipment, including the main wire, transformers, switchgear, high voltage insulators, etc.
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the transformer can be what, look at the role of electrical appliances can be
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Distribution system is the power supply to the distribution load for the purpose of the general voltage level of not more than 10KV
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Transmission lines in the power transmission project belongs to the carrier, belonging to the power cable category, should not be called equipment
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electrician received power outage notice, pull down the knife switch, accept fuse.
Q:What is the difference between power supply and distribution
Power supply and distribution is part of the use of general by the Architectural Design Institute of electrical professional

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