High Voltage Side-mounted 630A 1250A Indoor VCB Vacuum Circuit Breaker

HLVP-12 series side-mounted vacuum circuit breaker is a indoor high voltage switchgear.It applies to a three phase power system under rated voltage 12KV and rated frequency 50Hz as a protective and control appliance.Because of the special superiority of vacuum circuit breaker,it is especially suitable for a site needs frequent operation or cut-off short circuit current many times under a rated current.

Feature

Protection and Control in Three-Phase Power Systems with Rated Voltage 12 Kv and Frequency 50 Hz Electrical Appliances, Due To The Special Advantages of Vacuum Circuit Breakers

Especially Suitable for Frequent Operation Under Rated Operating Current, or Repeatedly Break Short-Circuit Current Places

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Product Introduction

Product view

HLVP-12 sealed vacuum circuit breaker

High voltage switchgear for protection and control in three-phase power systems with rated voltage 12 KV and frequency 50 Hz Electrical appliances, due to the special advantages of vacuum circuit breakers. especially suitable for frequent operation under rated operating current, or repeatedly break short-circuit current places.

Operation of HLVP-12 sealed vacuum circuit breaker

The integrated design of the moving mechanism and the circuit breaker body can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit.

Technical Parameters

No	Item		Units	Technical parameters
1	Rated voltage		Kv	12
2	Maximum working voltage		Kv	12
3	Rated current		A	630/1250	630/1250	630/1250/1600
4	Rated short-circuit breaking current		Ka	20	25	31.5
5	Rated short circuit closing current		Ka	50	63	80
6	Rated peak withstand current		Ka	50	63	80
7	4s rated short circuit withstand current		Ka	20	25	31.5
8	Rated insulation level	Power frequency withstand voltage (before and after rated breaking)	Kv	42（fracture:48）
		Impact withstand voltage (before and after rated breaking)
9	Rated operation sequence			75（fracture:84）
10	Mechanical life		Times	0-0.3s-co-180s-co
11	Rated short circuit current breaking times		Times	10000
12	Operating mechanism rated closing voltage (dc)		V	50
13	Operating mechanism rated trip current (dc)		V	110,220
14	Contact stroke		Mm	110,200
15	Overtravel (contact spring compression length)		Mm	11±1
16	Three-phase split and close bounce time		Ms	3.5±0.5
17	Contact closing bounce time		Ms	≤2
18	Average opening speed		M/s	≤2
19	Average closing speed		M/s	1.2±0.2
20	Opening time	At the highest operating voltage	S	0.6±0.2
		At the lowest operating voltage
21	Closing time		S	≤0.05
22	Main loop resistance of each phase		Μω	≤0.08
23	Dynamic and static contacts allow wear cumulative thickness		Mm	0.1