40.5kV Vacuum Circuit Breaker/Mounted Permanent Magnet Embedded Type(ZW32)

Model NO.: ZW32-40.5M

ZW32-40.5M type outdoor pole mounted reliable permanent magnet embedded type vcb (vacuum circuit breaker) adopts special design permanent magnet mechanism, manual closing mechanism and high reliable intelligent controller.

Quantity:

Product Description

1. General description
ZW32-40.5M type outdoor pole mounted reliable permanent magnet embedded type vcb (mv vacuum circuit breaker) adopts special design permanent magnet mechanism, manual closing mechanism and high reliable intelligent controller. This equipment mainly apply to medium voltage overhead line power grid. It is used for opening and closing load current, over load current and short circuit current, with 0~3 times automatic reclosing.
High reliability

Maintenance free in entire service life
High mechanical life and electric life
The complete appliance has small volume, light weight, and easy for installation
Has standard relay protection and fast automatic relcosing function.

2. Using condition

Ambient air temperature:：-30℃～+60℃；
Altitude：≤ 2000m；
Wind speed: ≤ 34m/s；
The vibration from the switch equipment and the external of the control equipment or earthquake can be ignored.
Pollution grade: IV class.
Storage temperature: -40℃～+85℃。

3. Main technical Parameter

Circuit Breaker main technical parameter

No.	Item	Unit	Date
1	Rated voltage	kV	40.5
2	Rated current	A	1250/1600
3	Rated frequency	Hz	50 or 60
4	Power frequency withstand voltage 1min（wet）（dry）	kV	80/95
5	Lightning impulse withstand voltage（peak voltage）	kV	185
6	Rated short circuit breaking current	kA	31.5
7	Rated short circuit making current（peak value）	kA	80
8	Rated peak withstand current	kA	80
9	4S short time withstand current	kA	31.5
10	Rated operating sequence		O－0.1s－CO－3sCO-6sCO-60s recover
11	Rated short circuit current breaking times	times	30
12	Mechanical life	times	20000
13	Permanent magnet mechanism control voltage	V	DC220
14	Secondary circuit 1min power frequency voltage	KV	2

Circuit breaker main mechanical parameter

No.	Item	Unit	Date
1	Contact opening distance	mm	16±1
2	Contact over travel	mm	4±0.5
3	Opening speed	m/s	1.4-1.8
4	Closing speed	m/s	0.4-0.8
5	Contact closing bounce time	ms	≤5
6	Center distance between phase	mm	560±2
7	Triphase opening/closing asynchronous	ms	≤2
8	Each phase conductive circuit resistance	μΩ	＜120
9	Closing time	ms	25～45
10	Opening time	ms	20～45
11	Weight	Kg	300