Wholesale Parts Of Vacuum Circuit Breaker - VSG-24 Series Indoor High Voltage Vacuum Circuit Breaker – Ghorit

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Wholesale Parts Of Vacuum Circuit Breaker - VSG-24 Series Indoor High Voltage Vacuum Circuit Breaker – Ghorit Detail:

VSG-24 series lateral type indoor high voltage vacuum circuit breaker applies to three-phase AC 50(60)Hz 24KV power system, which can be used for switching load current, overload current and fault current in industrial and mining enterprises, power plant, transformer substation and suitable for frequent operation occasions It also widely applies to projects, as power plant, power system, petrifaction, metallurgy, metro, airdrome, building, etc.

Environmental Conditions

♦ Ambient temperature: -10°C-+40°C;

♦ Altitude: <1000m;

♦ Relative humidity: daily average <95%, monthly average <90%；

♦ Earthquake intensity: <8 level;

♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.

Main Technical Parameters

No	Item	Unit	Value
1	Rated voltage	kV	24
2	1 min power frequency withstand voltage		65
3	Rated lightning impulse withstand voltage		125
4	Rated frequency	Hz	50
5	Rated current	A	630, 1250
6	Rated short circuit breaking current	kA	25, 31.5
7	Rated short circuit making current (peak)		63, 80
8	Rated short time withstand current		25, 31.5
9	Rated peak value withstand current		63, 80
10	Rated short circuit duration	s	4
11	Rated operating sequence		O-0.3s-CO-180s-CO
12	Secondary circuit power frequency withstand voltage (1min)	V	2000
13	Rated sing e/back-to-back capacitor bank breaking current	kA	630/400
	Breaking time	ms	20 〜50
1?	Opening time	ms	35 〜70
16	Mechanical life	times	10000
17	Electrical life		E2 class
18	Allowed cumulative wearing thickness of moving contact and fixed contact	mm	3
19	Clearance between open contacts	mm	13±1
20	Over travel	mm	3±1

No	Item	Unit	Value
21	Average closing speed	m/s	0.6〜1.0
22	Average opening speed	m/s	0.9〜1.7
23	Rated voltage of energy storage motor	V	DC 220/DC110
24	Power of energy storage motor	W	90
25	Contact closing bounce time	ms	<2
26	Three phase opening and closing asynchronism	ms	<2
27	Each phase conductive circuit resistance	uQ	<45(630A)_; <35(1250A)
28	Contacts pressure	N	3100 〜3″。
29	Charging time	s	<15

General Structure Drawing and Installation (unit: mm)

mgh (1)

mgh (2)

A	B	C
210	550	901
230	600	941
275	650	1031

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