Lw38-40.5 36kv 1250A 31.5ka Outdoor 3 Phase 3 Pole Sf6 Gas Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Structure: ACB
• Model NO.: VCB-310
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection
• Certification: VDE, ISO9001-2000, CE, CB, CCC
• Transport Package: Exportworthy
• Specification: as clients′ order
• Trademark: OEM
• Origin: China
• HS Code: 8536200000
• Production Capacity: 3000sets/Year

Product Description

•  model: LW38-40.5
• Name:  SF6 gas circuit breaker
• installation: Outdoor
• Standard: IEC 62271-100
• Rated voltage :  36 KV
• Max system voltage :  40. 5 KV
• Rated current:  1250 A
• Frequency :  50 or 60 Hz
• insulation level : 70 KV / 195 KV (Peak)
• short-circuit breaking current :  31.5 KA rms
• short circuit withstand current & duration :  31.5 KA, 3 Sec
• Operation sequence:  O-0.3S-CO-3 min - CO
• Closing coil supply voltage : 110 VDC
• Opening coil supply voltage : 110 VDC
• Motor supply voltage :  230 VAC
• Mass : 900 KGS
• SF6 Gas pressure (20 C Degree): 380 kPa (abs)

The Model Description Of  LW36-126

L :Sulfur Hexafluoride Circuit Breaker

W:Outdoor

36 :Design Number

126:Rated voltage:126kV

Rated current:3150A    

Rated short-circuit breaking current:40kA

Working Environment

Installation method: side-mounted, middle-mounted

Ambient air temperature: upper limit +40C, lower limit -30C; ;

Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);

Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

Amplitude: earthquake intensity 8 degrees;

Contamination level: Class I;

Maximum daily temperature difference: no more than 25C.

Main Technical Parameter

Serial number	Parameter		Unit	Value
1	Rated voltage		kV	126
2	Rated power frequency withstand voltage (1mim)	to the ground	kV	K·230
		between fractures	kV	K·265
3	Rated lightning impulse withstand voltage	to the ground	kV	K.550
		between fractures	kV	K.630
4	Power frequency withstand voltage at zero gauge pressure of SF6 gas		kV	K.95
5	Rated frequency		Hz	50
6	Rated current		A	3150
7	first open pole coefficient			1.5
8	Rated short-circuit breaking current			40
9	Rated short-circuit making current (peak value)		kA	100
10	Rated short-time withstand current		kA	40
11	Rated peak withstand current		kA	100
12	Rated short circuit duration		S	4
13	Rated out-of-step breaking current		kA	10
14	Near zone fault breaking current		kA	90%lk, 75%lk
15	Rated line charging switching current		A	31.5
16	Nominal Operation Sequence			0-0.3s-CO-180s-CO
17	Main circuit resistance		µΩ	≤40