Power Substation

  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector
  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector
  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector
  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector
  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector
  • GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector

GW4-126KV / GW4-40.5 Outdoor High Voltage Disconnector

GW4-126(D)(W) disconnector is a kind of HV outdoor electric equipments used in three-phase AC 50Hz electrical system. It is used for switching -on/off the HV circuit when there is no load in the circuit in order to change or transfer the circuit and also disconnect the current with the bus bar, breaker or any other HV electrical equipments when overhauling the circuitry.

GW4-126(D)(W) Outdoor High Voltage AC Disconnector

Meaning of Type

Outdoor high voltage AC disconnector
high voltage AC disconnector

Introduction

The GW4-126(D)(W) disconnector is a kind of HV outdoor electric equipments used in three-phase AC 50Hz electrical system. It is used for switching -on/off the HV circuit when there is no load in the circuit in order to change or transfer the circuit and also disconnect the current with the bus bar, breaker or any other HV electrical equipments when overhauling the circuitry.

Thedisconnector is a double-post plane interrupter mid-opened type. It can match ground switch on 1 or 2 sides. It uses CS14G、CS17G or CS11 manual operating mechanism or CJ series electromotor operating mechanism to realize three-phase linking operation. The ground switch uses CS14G、 CS17G manual operating mechanism to realize three-phase linking operation.


Thedisconnector conforms to the standards of GB 1985-2004, DL/T486-200Xdisconnector=””ground=””switch=””>,GB/T 11022-1999, DL/T395 -2006which is constituted for the State Grid Corporation of China.

Working environment

1. Ambient temperature: -40°C – +40°C
2. Altitude: ≤ 2000m
3. Wind speed: ≤ 34m/s
4. Ice thickness:≤ 10mm
5. Earthquake intensity:≤ 8 degree
6. Air pollution level: III or 7. Sunlight radiate: 100W/m²(sunshine noon)

Technical data

ltemUnitValue
Rated voltagekV40.572.5126
Rated
nsulating
level
a)1 min power trequency withstand voltage(validvalueTo earthkV96140230
InterruptekV115160245
b)Rated thunder impulse withstand voltage(peak)To earthkV185325550
InterrupterkV215375630
Rated ftequoncyHz50
Rated currentA400  630  1000  1250  1600  2000  3150  4000
Rated short time withstand currentkA20  20  31.5  31.5  40  40  50  50
Ration peak withstand current40  50  80  80  100  100  125  125
Rated short-circuit duration Main/earthing bladeS4/2
Raled terminal mechanical loadHonzontal portraitN7501000
Horizontal transvorseN500750
Vertical forceN7501000
Creepage distancemm1025-12501800-22503150-3900
Mechanical liteTimes2000
Manual operating mechanismWithout earthingCS11(CS17)
Single earthingC88-6D(CS17)
Double eartngMain blade CS14G(CS17);Earthing blade CS11(CS17)
Control loop voltageVAC220,DC110,DC220
Electromotor operating mechanismTypeCJ6
Motor yoltageVAC220,AC380,DC220
Control loop voltageVAC220,AC380,DC220
Switch-offlon times6±1
Weight of productWithout earthingkg360500700
Single earthingkg410600800
Doutble earthingkg460700900

Outline and Installation Dimension

Outline and Installation Dimension

NoNameUnitQtyRemarks
1GW4-126KV Disconnectorphase3
236 connectopc1
31060 Taper pinpc8
41  Connecting pipe Water gas pipepc1
5CS14G manual mechanism or CJ6 electnc mechanismSet1
6M20 connector (right tumSet2
7ConneclorSet4
81220 BptPC8
91:  Connecting pipe Water gas pipepc2
101   Connecting pipe Water gas pipePC2
11M20 connector (left tumSet2
2CS14G manual mechanismSet1
13Connecting pipe 1 Water gas pipepc1
1435 ConnectorPc1
15Ground knife crank armpc1
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