LW9 66KV type 66kv 3 pole 3 phase sf6 gas circuit breaker 1250a 3150a

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Product Overview

Description


LW9-66KV type 66kv 3 pole 3 phase sf6 gas circuit breaker 1250a 3150a



Product Description


LW9-66KV type 66kv 3 pole 3 phase sf6 gas circuit breaker 1250a 3150a









1. Product overview: 


LW9 -72.5 porcelain column high voltage AC sulfur hexafluoride circuit breaker is a new product, which adopts spring operating mechanism and three poles are installed on one frame to realize three-phase mechanical linkage through transmission mechanism. Electronic controlling can achieve remote and local operation, product performance is more superior, operating noise is small. It has the ability to break capacitive loadand inductive load current, It can be used as a special circuit breaker for reactive power compensation. 


 


2. Performance features:


1. Excellent capacitive and inductive current breaking erformance; 


2. Longer electrical life; 


3. Reliable insulation performance; 


4. Longer mechanical life; 5. Safe and reliable operation, small maintenance workload.


 


 


 


     3. Environmental Condition:



  • Altitude:≤2000m

  • Ambient temperature:-40℃~+40℃

  • Icing thickness:≤10mm

  • Wind pressure:≤700Pa

  • Air pollution level:Ⅲ

  • Sunshine: 0.1 W/cm² 

  • Relative humidity: Daily average value <95% Monthly average value ≤90% 

  • Max wind velocity: 34m/s

  • Seismic: Horizontal acceleration is 0.250g Vertical acceleration is 0.125g

  • Pollution level: III (25mm/kV), IV (31mm/kV)

  • Thickness of ice covering: 10 mm (the wind velocity 15m/s) 


4. Technical Data


 










































































































































































 No. Item  UnitData 
 1 Rated voltageKV72.5
2Rated currentA3150
3Rated frequencyHZ50
4First pole to clear factor 1.5
5Rated short circuit breaking currentKA40
6Rated short-circuit current (peak)KA100
7Rated short-circuit withstand currentKA40
8Rated power frequency withstand voltage(1min)Phase to earthKV

K·230


Phase to phase

K·(230+70)


9Rated lightning impulse withstand voltage Phase to earthKVK·550
Phase to phaseK·(550+103)
10Rated peak withstand current KA100
11Rated out of step current KA10
12Near fault current KA90%1K
13Electrical life of rated short circuit breaking current times20
14Rated short circuit duration s4
15Rated line charging close currentA31.5
16Rated operation sequence  O-0.3s-CO-180s-CO35
17Main circuit resistance μΩ≤35
18Rated SF6 gas pressure MPa0.6
19SF6 gas leakage rate ppm≤0.55
20Moisture content of SF6 gas (V/V) ≤150
21Mechanical lifetimes10000
22Electric distance Phase to earthmm3906/3150
Phase to phase3906/3150
23Each filled with SF6 gas qualitykg8
24Quality of each circuit breaker kg1700

 


 



  5. Drawing;


LW9-72.5


 


 





Company Information


 


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Certifications


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FAQ


1. Company nature: Factory over 25 years, 320000m2 workshop


2. Payment term: T/T, L/C, L/C, Western Union, Paypal or available


3. Quality warranty: 12-24 months after shipment date.


4. Type test: STD Lab testing or national testing report.


5. Overseas Installment: Our team & technicist can go abroad to do it as per request.


 





Contact us


 
















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    Emma


    Sales head


    Phone/Wechat/Whatsapp:  0086 13319220197   


    Email:       emma (at) zgxgdn.com;


                      574306294(at)qq.com;


    Website:  https://xgdn.en.alibaba.com; 


                          www. loadbreak-switch.com; 




 




0.1997 s.