Outdoor Circuit Breaker High Reliability 126kv Circuit Breaker Sf6

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CCC
• Brand: Bdn
• Place of Orignal: Zhejiang
• Phase Number: 3
• Mechanical Life: 2000 Times
• Rated Short Circuit Duration: 4s
• Rated Current: 2000A/3150A
• Insulation: Sf6 Gas Insulation
• Rated Voltage: 126kv
• Transport Package: Wooden Case
• Specification: High voltage
• Trademark: BDN
• Origin: China
• HS Code: 853620
• Production Capacity: 500

Product Description

 

General

SF6 live tank 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.

Service environment

• Ambient temperature :-40 ° C ~+40° C;

• Altitude: no more than 3000m;

• Wind speed: not more than 34m/s;

• Daily temperature difference: not more than 25°C;

• Sunshine intensity: not more than 0.1w/cm2;

• Monthly average relative humidity: not more than 90%;

• Seismic acceleration: horizontal is not more than 0.2g, vertical is not more than 0.1g;

• Ice thickness: no more than 10mm;

• Air pollution degree: not more than GB5582 level IV;

• Installation occasion: outdoor.

Key Feature

• Circuit breaker adopts three-phase porcelain bottle pillar structure, outdoor design, three-phase with an SRCT36-C spring operating mechanism, centered arrangement, three-phase continuous movement, so the appearance is novel and exquisite.

• The circuit breaker uses SF6 gas as insulation and arc extinguishing medium, and the three SF6 gas poles of the circuit breaker should be connected during operation, and the pressure and density of the circuit breaker should be monitored by a pointer density relay.

• The principle of self-energy arc extinguishing is adopted, and the optimal design is carried out in the circuit breaker motion system, so the mechanical efficiency is effectively improved.

Product Parameters

Name		Unit	Data
Rated voltage		kV	126
Rated power frequency withstand voltage (1mim)	to earth	kV	K.230
	Between open contacts		K.(230+70)
Rated lightning impulse withstand voltage	to earth	kV	K.550
	Between open contacts		K.(550+103)
Power frequency withstand voltage at zero gauge pressure of SF6 gas		kV	K.95
Rated frequency		Hz	50
Rated current		A	3150
first open pole coefficient			1.5
Rated short-circuit breaking current			40
Rated short-circuit making current (peak value)		kA	100
Rated short-time withstand current		kA	40
Rated peak withstand current		kA	100
Rated short circuit duration		S	4
Rated out-of-step breaking current		kA	10
Near zone fault breaking current		kA	90%lk, 75%lk
Rated line charging switching current		A	31.5
Nominal Operation Sequence			0-0.3s-CO-180s-CO
Main circuit resistance		μΩ	≤35

 

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