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

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

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

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

Product Details:

Place of Origin: CHINA
Brand Name: Tianan Electric
Certification: XIHARI
Model Number: LW39-126

Payment & Shipping Terms:

Minimum Order Quantity: 1 unit
Price: Pending
Packaging Details: Standard export package
Delivery Time: 45 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000 units / year
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Detailed Product Description
Rated Voltage: 110/126kV Rated Current: 3150A 40kA
Frequency: 50/60Hz Insulation Gas: SF6

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
         

 

 

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

Contact Details
Ningbo Tianan (Group) Co.,Ltd.

Contact Person: admin

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