110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker

Price Negotiable

Price: Pending

MOQ: 1 unit

Delivery Time: 45 days

Brand: Tianan Electric

Product Description

110kV 126kV High Voltage Circuit Breaker 3150A - 40kA Sf6 Circuit Breaker

Product Description

LW39-126 type circuit breaker is a high performance new type HV SF6 circuit breaker. Based on sufficient absorbing and digesting advanced technology of foreign SF6 circuit breaker and requirement of national standard, It combining domestic commercial manufacture level and design. This product is used in electric system with 50Hz, 110kV system nominal voltage, which is main electrical equipment controlled and protected by power station and substation.

Technical Data

Serial No.	Name	Unit	Value
1	Ambient temperature	ºC	-50ºC-40ºC
2	Rated voltage	KV	126
3	Rated power frequency withstand voltage (1min)
3.1	To earth	kV	230
3.2	Across open contact	kV	230+73
4	Rated lightning impulse withstand voltage
4.1	To earth	kV	550
4.2	Across open contact	kV	550+103
5	Rated frequency	Hz	50
6	Rated value	A	3150
7	First pole to clear factor		1.5
8	Rated short-circuit breakering current (Isc)	kA	40
9	Rated short-circuit making current (peak)	kA	100/104
10	Rated hsort-time withstand current	kA	40
11	Rated peak withstand current	kA	100/104
12	Rated duration of short-circuit	s	4
13	Rated out of phase breaking current	kA	10
14	Short-line fault breaking current	kA	90%Isc,75Isc
15	Rated line charging breaking current	A	31.5
16	Rated operating sequence		o-0.3s-CO-180s-CO
17	Resistance of main contact	μΩ	≤35
18	Rated SF6 gas pressure (20ºC gauge pressure)	Mpa	0.6 (or SF6+CF4) 50Hz
19	Alarm/ minimum functional pressure (20ºC gauge pressure)	Mpa	0.55/0.50 50Hz
20	Annual leakage of SF6 gas	%	≤0.5
21	Gas humidity content (L/L) (20ºC at handover)	L/L	≤150x10-6
22	Mechanical endurance	Times	10000
23	Radio interference level	mv	≤500
24	Creepage distance	mm	3906
25	Weight of SF6 gas filled for each CB	kg	8
26	Weight of one set of CB	kg	1700

Major Technical parameters of mechanism

No.	Name			Unit	Data
1	Energy-store motor		Normal voltage rang	V	85%--- 110%
			Rated voltage		DC220/AC220
			Rated power	W	720
2	Storage time (at rated voltage)			s	≤20
3	Rated voltage/current of opening coil			V/A	DC110V/4A, DC220V/2A
					AC220V/5A
4	Auxiliary Switch	Rated current		A	3(DC220V)/5 (DC110V)
		Number of auxiliary contacts: normally opened/closed		Pair	11/11
5	Trip switch	Rated current		A	3(DC220V)/5 (DC110V)
		Number of auxiliary contacts: normally opened/closed		Pair	2/2
6	Capacity of terminal carry continuous current			A	10
7	Voltage of heater and lighting circuit			V	AC220
8	Mechanical endurance			Times	10000