GW4-145(D)(W)
Adopting a mature double-column horizontal rotary structure and premium copper-tungsten conductive components, the switch has low contact resistance and high conductivity. It maintains stable current carrying capacity, effectively preventing overheating and ensuring safe and efficient power grid operation.
Equipped with high-strength anti-fouling insulators with extended creepage distance, the disconnector owns excellent insulation and anti-interference performance. It adapts to high-altitude, humid and heavily polluted environments, ensuring reliable and safe circuit isolation during maintenance work.
All metal parts adopt hot-dip galvanized treatment, featuring outstanding resistance to rust, oxidation and salt fog corrosion. The optimized outdoor structural design withstands severe weather, realizing stable long-term all-weather outdoor operation.
Designed with reliable anti-misoperation interlock devices, this switch supports both manual and electric operation modes. It has high mechanical strength, simple installation and low maintenance, effectively reducing operational costs for UHV power grid construction and upgrading.
Suitable for 145kV ultra-high voltage power systems, this outdoor disconnector boasts stable performance and strong environmental adaptability. We provide global customers with factory direct supply, complete certifications and professional one-stop after-sales service.
Product Details
GW4-145(D)(W)
Outdoor high voltage AC disconnector
□ Meaning of type
□Introduction
□The GW4-145(D)(W)disconnector is a kind of HV outdoor electric equipments used in three-phase AC50Hz electrical system.It is used forswitching
-on/off the HV circuit when there is no load in the circuit in orderto 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.
□The disconnector is a double-post plane interrupter mid-opened type.It can match ground switch on 1 or 2 sides.It uses CS 14G、CS17G or CS 11 manual operating mechanism or CJ series electromotor operating mechanism to realize three-phase linking operation.The ground switch uses CS 14G、 CS 17G manual operating mechanism to realize three-phase linking operation.
□The disconnector conforms to the standards of GB 1985-2004,DL/T486-200X<HV AC disconnector and ground switch>,GB/T11022-1999,DL/T395 -2006<The technical standards of HV switch equipment and control equipment>.It also meets the<regulation of the order for the disconnecting>which is constituted for the State Grid Corporation of China.
□Working environment
□Ambient temperature:-40℃~+40℃
□Altitude: ≤2000m
□Wind speed:≤34m/s
□lce thickness≤10mm
□Earthquake intensity≤8 degree
□Air pollution level:Ⅲor<V
□Sunlight radiate:100W/m2(sunshine noon)
□Technical data
|
Item |
Unit |
Value |
|||
|
Rated voltage |
kV |
145 |
|||
|
InsulatIng level |
a) 1mlnpowerfrequency wlthstand voltage(valldvalue) |
To the earth |
kV |
275 |
|
|
Interrupter |
kV |
275(+85) |
|||
|
b) Rated thunder impulse withstand voltage(peak) |
To the earth |
kV |
650 |
||
|
Interrupter |
kV |
650(+120) |
|||
|
Rated frequency |
Hz |
50 |
|||
|
Rated current |
A |
6301250160020002500 |
|||
|
Rated short time withstand current |
KA |
2031.54050 |
|||
|
Ration peak withstand current |
KA |
5080100125 |
|||
|
Rated short-clrcult duratlon Maln/earthing blade |
S |
4/2 |
|||
|
Rated terminal mechanical load |
Horlzontal portralt |
N |
1250 |
||
|
Horizontal transverse |
N |
750 |
|||
|
Vertical force |
N |
1000 |
|||
|
Creepage distance |
mm |
3625/4495 |
|||
|
Mechanical life |
Times |
5000 |
|||
|
Electromotor operating mechanism |
Type |
|
CJ2 |
||
|
Motor voltage |
V |
AC380、DC220、DC110、AC220 |
|||
|
Controllopvoltage |
V |
AC220、AC380、DC220、DC110 |
|||
|
Switch-off/on time |
S |
7±1 |
|||
|
Manual operating mechanism |
Type |
|
CS11/CS8-6D,CS14G,CS17G |
||
|
Electromagnetic lock voltage |
V |
AC220、DC110、DC220 |
|||
|
elght of product |
WIthout earthlng |
kg |
1000 |
||
|
Single earthing |
kg |
1100 |
|||
|
Double earthing |
kg |
1200 |
|||
口Outline dimension
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