XGN66-12 Fixed-type (Indoor) Closed Switchgear

Description:

PRODUCT DESCRIPTION XGN66-12 fixed-type closed switchgear (hereinafter referred to as switchgear) is a new generation of high-voltage electrical product of our company

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Detailed Description

PRODUCT DESCRIPTION

XGN66-12 fixed-type closed Switchgear (hereinafter referred to as switchgear) is a new generation of high-voltage electrical product of our company, in line with requirements of national standards GB3906 "-35KV AC metal-enclosed switchgear", Electric Department's DLT404"ordering technology conditions of indoor AC high-voltage switchgear", and also meets the international standard IEC62271" requirements of AC metal-enclosed switchgear and control equipment of 1KV above 52KV"

The product absorbs foreign advanced technology. It is small, only 50% of the size of ordinary switchgear; the Circuit Breaker has with high reliability and good performance: "five anti" interlocking machinery is reliable, simple and so on. The switch cabinet is indoor equipment of 3.6,7.2,12KV three-phase AC 50Hz single bus segment, for the acceptance and distribution of electrical energy. And it has circuit control, protection and monitoring functions, which can be used in various types of power plants, substations and industrial and mining enterprises, high-rise buildings and other places, and also in the Ring Network Cabinet with ring main unit.

Model and Meaning

The Main Technical Parameters

Switchgear's main technical parameters and component models

No.	Item	Unit	Technical parameters
1	Rated voltage	KV	3.6,7.2,12
2	Rated power frequency withstand voltage	KV	the ground,the same: 42; fracture: 45
3	Rated lightning impulse withstand voltage	KV	the ground, the same: 75; fracture:85
4	Rate frequency	Hz	50
5	Rated current	A	630,1250
6	Rated short circuit breaking current(peak)	KV	20,25,31.5
7	Rated short circuit closing current (peak)	KV	50,63,80.
8	Rated dynamic stable current (peak)	KV	50,63,80
9	Lightning electric stable current 4S(RMS)	KV	20,25,31.5
10	Protection class		1P2X
11	Dimensions (W × D× H)	mm	900X1000X2300
12	Weight	Kg	-600

Main technical parameters of ZN63-12type Vacuum Circuit Breaker

No.	Item	Unit	Technical parameters
1	Rated voltage	KV	12
2	Rated current	A	630,1250
3	Rated short circuit breaking current	KV	20,25,31.5
4	Rated short circuit closing current	KA	50,63,80
5	Rated short-time withstand current(4S effective value)	KA	20.25,31.5
6	Rated peak withstand current (peak)	KA	50,63,80
7	Mechanicallife	Time	10000
8	Rated short-time breaking current breaking times	Time	50
9	Rated operating sequence		o-0.3s-c O-180s-C o
10	Contact head distance	mm	11±1
11	Contact contact stroke	mm	4±0.5
12	Interphase center distance	mm	210
13	Opening speed	m/s	1.2±0.2
14	Closing speed	m/s	0.6±0.2
15	Opening time	ms	≤60
16	Closing time	ms	≤75
17	Three - phase opening synchronization	ms	≤2
18	Closing bounce	ms	≤2
19	Loop resistance	µΩ	≤45
20	Accumulated allowable wear thickness of contact head	mm	3

Layout Diagram