FZW28-12F outdoor Boundary Vacuum Circuit Breaker

FZW28-12F outdoor Boundary Vacuum Circuit Breaker, or called Boundary Load Break Switch, is applied to rated voltage 12kV, AC 50HZ outdoor distribution equipment , use for opening .closing load current and closing short circuit current . Applicable to substations and industrial and mining enterprises and city, rural network for protection and control purposes, and city, rural network automatic distribution net and frequent operation place.

Price：

￥0.00
Category：

Outdoor High Voltage Vacuum Circuit Breaker
Browse number：

38
Release time：

2024-09-21 22:48:35
Quantity： - +
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Detailed Description

Description

This product is applicable for operation of control switch of overhead line distribution systems, there are several types, VPS-12-type boundaries vacuum Load switch with no oil, institutional simple. Reliable, no maintenance and other advantages, has been widely used. The product with the FDR-based fault detector or RTU remote Terminal unit equipment combine to form a very simple structure, distribution automation system that allows the automatic overhead lines fault location and fault segment of the automatic quarantine. In order to update our existing distribution switchgear, so free of oil and automation features of the distribution equipment for the transformation.

Environmental conditions
1. Altitude: not higher than 2000m.
2. Air temperature: -40℃ to +85℃
3. Relative humidity: monthly average ≤90%, daily average: ≤95%
4. Earthquake intensity: ≤ 8 degree
5. Pollution Class: 3 degree
6.Icing thickness:10mm
7.Wind pressure: no more than 700Pa( equal to wind speed 34m/s)

Technical Data

Rated voltage		KV	12
Rated current		A	630
Rated frequency		HZ	50
Rated short-time withstand current (4s)		KA	20
Rated short-circuit closing current (peak)		KA	50
Operation voltage		V	AC220 (80%-110%)
Power frequency withstand voltage(1min)	To earth	KV	50 (GB.42)
	Phase to phase		50 (GB.42)
	Fracture		50 (GB.48)
Lightning impulse withstand voltage	To earth	KV	95 (GB.75)
	Phase to phase		95 (GB.75)
	Fracture		110 (GB.84)
Insulation resistance	To earth		2000
	Phase to phase		2000
	Fracture		2000
Main loop resistance per phase		μΩ	≤500
Working life under rated current		Times	10000
Weight		KG	185
Three phase contact closing and opening non-synchronism		ms	≤2
Contact closing bounce time		ms	≤5
Closing time		ms	120-180
Opening time		ms	500-900
Contact travel		mm	8-9
Contact over-travel		mm	2.5-4
Isolating gap open distance		mm	25-30
Isolation gap over line distance		mm	6-13
SF6 Leakage per year			＜1%
SF6 Gas moisture content		PPm	＜2
Standard			IEC265-1