Feature

Suitable for Use as A Protection And Control Appliance in a Three-Phase Power System with a Rated Voltage of 12 Kv and a Frequency of 50hz.

Especially Suitable for Places That Need Frequent Operation Under The Rated Working Current or Multiple Short-Circuit Current Interruptions.

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Product Introduction

Product overview

HLVP-12 open type vacuum circuit breaker is an indoor high-voltage switchgear, which is suitable for use as a protection and control appliance in a three-phase power system with a rated voltage of 12 KV and a frequency of 50Hz. Due to the special advantages of the vacuum circuit breaker, it is especially suitable for places that need frequent operation under the rated working current or multiple short-circuit current interruptions.

Performance benefits

This type of product is a modular operating mechanism. The main insulation is solid insulation, and the vacuum arc extinguishing chamber is integrally cast in the epoxy resin insulation room. The adoption of this structure greatly improves the insulation performance of the product, and can meet the requirements of environmental conditions such as humidity and high altitude.

Main Technical parameters

NO	Item	Unit	Technical Parameters
1	Rated voltage	KV	12
2	Rated short-duration power frequency withstand voltage	KV	42/48(Interphase, ground/fracture)
3	Rated lightning impulse withstand voltage	KV	42/48(Interphase, ground/fracture)
4	Rated frequency	Hz	50
5	Rated current	A	630 1250	630 1250 1600 2000 2500 3150	630 1250 1600 2000 2500 3150
6	Rated short-circuit breaking current	KA	20/25	31.5	40
7	Rated short-time withstand current	KA	20/25	31.5	40
8	Rated short circuit duration	S	4
9	Rated peak withstand current	KA	50/63	80	100
10	Rated short circuit closing current	KA	50/63	80	100
11	Secondary circuit power frequency withstand voltage (1min)	V	2000
12	Rated single / back to back capacitor group breaking current	A	630/400(40kA:800/400)
13	Rated capacitor bank closing current	KA	12.5 (frequency is not greater than)
14	Mechanical life	TIMES	20000
15	Rated current breaking times (electrical life)	TIMES	20000
16	Rated short circuit current breaking times	TIMES	50(40KA≤30)
17	Dynamic and static contacts allow wear cumulative thickness	MM	3
18	Energy storage time	S	≤10
19	Contact opening distance	MM	11±1
20	Overtravel		3.5±0.5
21	Contact closing bounce time	MS	≤2(40KA≤3)
22	Three-phase split/closed period	MS	≤2
23	Average opening speed (contacts are separated by -8mm)	M/S	1.2±0.2
24	Main conductive loop resistance	μΩ	≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more)
25	Rated operation sequence		0-0.3s-Co-180s-Co