ZCW□-72.5(126.5)/L
Product Details
ZCW□-72.5(126.5)/L
Open air type assembled switch gear
□Meaning of type
□Introductio
□ZCW□-72.5(126.5)/L- type open-type combination of electrical appliances is the use of air as the outer insulation SF6 gas as the interrupter medium complete sets of electrical appliances.For three-phase AC72.5KV power transmission and distribution system control and protection can also be used to contact the circuit breaker and opening and closing capacitor group of occasions.Suitable for land tension city substation,enterprise substation, mountain substation
□ Characteristic of structure
□The circuit breakers,disconnectors,grounding switches,current transformers,bus and other components of the organic combination of grounded steel structure bracket,compact structure.
□Il ts share of space only split 30%-50%,with land savings,reduce construction costs and other notable features.
□The entire interval factory prefabricated,completed the assembly and all the debugging before shipment and shipped to the installation site,greatly reducing the installation cycle.
□The use of fully proven high-performance interrupters,disconnectors,basic maintenance-free,high reliability.
□I nter-bay factory prefabricated self-supporting bus,without the need to build the framework.
□ Flexible layout,can be used for a variety of wiring.
□Circuit breakers can be reduced overhaul or repplacement as a whole,due to body failure power outage time can be reduced to at least 3 hours.
□Technical data
1)Main technical data of breaker
Note:external insulation level is changed by modified coefficient.Every 2000m of altiude,K=1.13:Altitude 3000m,K=1.28.
2)Main technical data of structure
3)Mechnical adjustment of the breaker
|
No. |
N a m e |
Unit |
Value |
|
1 |
Center distance between poles |
mm |
1200 |
|
2 |
Strode length of the moving contact |
mm |
120+3 |
|
3 |
Contact stroke length of the moving contact |
mm |
25+2 |
|
4 |
Length of the inter phase operating connecting rod |
mm |
110+3 |
|
5 |
Switch-off speed |
m/s |
4.2-5m/s |
|
6 |
Switch-on speed |
m/s |
2.2-3m/s |
|
7 |
Switch-of ime |
ms |
≤40 |
|
8 |
Switch-on time |
ms |
≤100 |
|
9 |
Break time |
ms |
≤60 |
|
10 |
Switch-on/off time |
ms |
≤80 |
|
11 |
Switch-off/on time |
ms |
300 |
|
12 |
The time difference of the opening of three phases |
ms ms- |
≤2 |
|
13 |
The time difference of the closing of three phases |
|
≤3 |
□Order notice
□The type and the specification of the circuit breaker.
□ Rated electric parameter(voltage,current,rated short-circuit breaking current and so on).
□Rated electric parameter of control loop(rated voltage of energy storage motor,rated voltage o fthe opening and closing coils).
□The name and the number of the accessories when required.
□ The connection direction of the primary upper terminal.
□ Outline dimension
□As per the drawing below.
□ZCW □-72.5(126.5)/L-type open type combined electrical weight:1500kg.
□Front face area:4.5m²
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