Lw30-145kv Sf6 3150A High Voltage Three Pole Gas Load 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-301
• 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

Product Introduction

LW36-126 SF6 Circuit Breaker outdoor sf6 circuit breaker 126kv  using SF6 gas as arc extinguishing and insulating medium, using the most advanced self-energy arc extinguishing technology in the world, equipped with a new type of spring operating mechanism, it has the characteristics of long electrical life, low operating power, low noise and high reliability. Simple structure, small size, long period of no maintenance, can completely replace the same type of imported products in the current process of power equipment becoming oil-free and large-capacity.

 

LW36-126 SF6 Circuit Breaker outdoor sf6 circuit breaker 126kv  is a new generation of self-energy high voltage SF6 circuit breaker. The product is suitable for closing, cutting off load current and short-circuit fault current, controlling, protecting power equipment and tie lines of AC 50Hz, 126kV power system in areas below 2500 meters above sea level. The circuit breaker uses SF6 gas (a mixture of SF6 and CF4 in alpine regions) as the insulation and arc extinguishing medium, adopts the principle of self-energy arc extinguishing, and is equipped with a spring operating mechanism.

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