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LW36-126(145) outdoor self-energy type circuit breaker

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Lead time: Sample is available in 2-3 working days;
The regular order will be usually 20-30 working days after receipt of 30% advance payment

Quality Guarantee: We offer 18 months’ warranty period, and 20 years’ quality guarantee period

Payment Terms: T/T, L/C, Western Union or Paypal

Trade term: FOB or CIF prices

We’re professional OEM manufacturer, and also accept the customized products according to the supplied drawings or parameters

Description

      LW36-126(145) outdoor self-energy type  circuit breaker is six sulfur hexafluoride gas as insulation and arc  extinguishing medium , CT30 spring operation mechanism and the principle self-blown arc  extinguishing of single variable pressure distance. The product is suitable for  72.5kV (126kV)  three-phase AC 50HZ power  system, which is used for points and load current , overload current and short  circuit current.

Environment  Condition:
 - Ambient temperature:-40℃~+40℃
 - Altitude:≤2000m
 - Wind pressure:≤700Pa
 - Daily temperature differenc:25℃
 - Icing thickness:≤10mm
 - Pollution degree: III(25mm/kV).

Technical  Data

 Rated voltagekV126 (145)
Rated currentA1250, 2000
Rated frequencyHZ50
First pole to clear factor 1.5
Rated short circuit breaking currentkA40
Rated short-circuit current (peak)kA100
Rated short-circuit withstand currentkA40
Rated power frequency withstand voltage (1min)Phase to earthkVK·230
Phase to phaseK·(230+70)
Rated lightning impulse withstand voltagePhase to earthkVK·550
Phase to phaseK·(550+103)
Rated peak withstand currentkA100
Rated out of step currentkA10
Near fault currentkA90%1K
Electrical life of rated short circuit breaking current times20
Rated short circuit durations4
Rated line charging close currentA31.5
Rated operation sequence O-0.3s-CO-180s-CO35
Main circuit resistanceμΩ≤35
Rated SF6 gas pressureMPa0.6
SF6 gas leakage rateppm≤0.55
Moisture content of SF6 gas (V/V) ≤150
Mechanical lifeTimes10000
Electric distancePhase to earthmm3906/3150
Phase to phase3906/3150
Each filled with SF6 gas qualityKG8
Quality of each circuit breakerKG1700

Order  instruction
 1-The type and the specification of the circuit  breaker.
 2-Rated electrical parameter(voltage, current,  rated short-circuit breaking current and so on).
 3-Environmental condition(temperature,  altitude, filth level and so on).
 4-Rated electric parameter of control  loop(rated voltage of energy storage of the opening and closing coils).
 5-The name and the direction of the primary  upper terminal .

Outline & Mounting Dimensions 

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