Product Description
Overview
LW36-72.5/3150-40 SF6 high-voltage AC circuit breaker is of3-phase 50Hz high-voltage switchgear,used for the controland protection of 72.5kV power distribution and transmissionsystem,as well as the network interconnected circuit breakersand the switching of capacitor banks.The breaker conforms toIEC56 and GB1984-2003 about high-voltage alternatingcurrent circuit breakers.
Service and Installation Conditions
●Ambient temperature:-30℃~+40℃(special order- 40℃~+40℃)
● Elevation:≤1000m(Value over 1000m should be indicated in advance.)
● Humidity:Daily average≤95%;Monthly average≤90%(25℃)
●Wind speed:≤35m/s
●Creepage distance:25mm/kV or 31mm/kV
Main Parameters
| ltem | Unit | Specification | |
| Rated voltage | kV | 126/145 | |
| Rated insulating level |
Lightning impulse withstand voltage(1.2/50μs) | kV | 650/550 |
| Power frequency withstand voltage(1min) | kV | 300/230 | |
| Rated current | A | 2500/3150/4000 | |
| Rated short circuit withstand/breaking current | kA | 31.5/40/50 | |
| Rated short-circuit making current | kA | 80/1000/125 | |
| Rated short circuit switching current | kA | 80/1000/125 | |
| Rated out-of-phase breaking current | kA | 8/10/12.5 | |
| Rated SF6 pressure(20℃ REL.) | MPa | 0.40/0.50 | |
| Lockout pressure(20℃ REL.) | MPa | 0.30/0.40 | |
| Breaking times of the rated short circuit withstand/breaking current | Times | 20 | |
| Mechanical life | Times | 10000 | |
| Closing time (under rated operation voltage) | s | ≤0.1 | |
| Opening time(under rated operation voitage | s | ≤0.06 | |
| Rated operating sequence | 0-0.3s-CO-180s-CO | ||
| Rated switching single capacitor bank current | A | 400 | |
| Rated short-circuit duration | s | 4 | |
| Annual leakage | %Year | ≤0.3 | |
| Moisture content of SF6(20℃) | uL/L | ≤150 | |
| Voltage of opening and closing coil | V | AC:220/380 DC:48/110/220 | |
| Voltage of charging motor | V | AC:220 DC:110/220 | |
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Professional
Professional
Fast Delivery
Fast Delivery
Good Price
Good Price
High Quality
High Quality
FAQs
Who are we?
We are Manufacturer more than 21 years experience in Binzhou City, shangdong, China. We start from 2004, sell to Domestic Market(52.00%), Eastern Asia(25.00%), Africa(10.00%), Mid East(6.00%),Southeast Asia(4.00%),South Asia(3.00%). There are total about 301-500 people in our office.
How can we guarantee quality?
What can you buy from us?
House eletric wire, Anti-aging wire, Solar PV cable, Control cable, Shielded computer cable, Low/Medium/High Voltage power cable, Aluminum alloy cable, Aerial insulated cable, Steel core aluminum standed wire, LSZH cable, Fireproof cable, Wind power cable, EV charging cable, Energy storage cable, Mining cable, etc.
Why should you buy from us not from other suppliers?
hengwang cable company has passed ISO9001 quality management system, ISO14001 environmental management system, ISO45001\German TUV certification\CE certification, the company is a finalist for the state power grid and a national”High-tech Enterprise.
What services can we provide?
Accepted Delivery Terms: FOB,CFR,EXW,FAS,DDP； Accepted Payment Currency:USD,EUR,CAD,AUD,GBP,CNY; Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,Western Union,Cash; Language Spoken:English,Chinese,Japanese,German,Russian
If I need customize Packing Cartons, is that available?
Yes, we have production line for packing box and cartons. we can make it according to your special requirement. If you are interested in our goods , please kindly send an inquiry to us !
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- Email: info@uni-groundrod.com
- Phone: +86 15515963170
- WeChat: +86 15515963170
- WhatsApp: +86 15515963170
- Address: No.26, Tongxiang City, Zhejiang Province，China
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