High Voltage Three Poles Outdoor Sf6 Circuit Breaker for 220kv Power System

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: LW30-252
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CCC
• Rated Voltage: 252kv
• Rated Current: 4000A 5000A
• Rated Frequency: 50Hz
• Customization: Acceptable
• Language: Chinese, English, Russian
• Loading Port: It Depends
• Transport Package: Wooden Case or Others
• Specification: Designed According to Supplier Specifications
• Trademark: HZEC
• Origin: China
• Production Capacity: 300000sets/Year

Product Description

Company Profile

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.

Product Description

LW30-252 High voltage sulfur hexafluoride circuit breaker is a three-pole AC 50Hz outdoor high voltage switchgear. It is mainly used for the control and protection of 220kV power system, and can also be used as a contact circuit breaker.

Service Environment

1. Outdoor;
2. Ambient air temperature :-30ºC~+50ºC;daily temperature differance:≤25ºC;
3. Altitude: does not exceed 3000m;
4. Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;
5. The magnitude of the earthquake was no more than 9 degrees;
6. No fire, explosion, serious pollution, chemical corrosion and violent vibration;
7. Protection class:IP5XW.

Main Features

1. Strong self-extinguishing arc breaking ability;
2. Simple structure;
3. New fillers are added with lengthened spout and materials.
4. Long electrical life;
5. Strong carrying capacity;
6. Good insulation performance;
7. Reliable sealing structure;
8. Radio interference low voltage;
9. The operation noise is low;
10. There is no oil leakage or gas leakage in the mechanism.
11. Easy site installation;
12. Less operational maintenance.

Product Parameters

No.	Item			Unit	Data
1	Service temperature			ºC	-30~+40																-30~+40	-30~+40	-30~+40
2	Rated voltage			KV	252
3	Rated power frequency withstand voltage (1min)				460																460	460	460
					540																460	460	460
4	Rated lightning impulse withstand voltage				1050																1050	1050	1050
					1156																1050	1050	1050
5	Rated frequency			Hz	50(60)
6	Rated current			A	4000																5000	4000	5000
7	First pole factor				1.5
8	Rated peak withstand current			KA	125																100	125	100
9	Rated short-circuit breaking current				50																40	50	40
10	Rated pull-out breaking current				Isc25%
11	Rated short-time withstand current				50																40	50	40
12	Rated short-circuit CO current				125																100	125	100
13	Rated operational sequence				O-0.3s-CO-180s-CO
14	Operational voltage of opening/closing			V	DC220;110
15	Opening coil current			A	2.5;5.5
16	Closing coil current			A	2.0;3.2
17	Motor voltage			V	DC220(AC220)
18	Opening time			ms	24.0~35.0
19	Closing time				75.0-110.0
20	Main circuit resistance			UΩ	≤55
21	Rated SF6 gas pressure (20ºC gauge pressure)			MPa	0.60																0.60	0.60	0.60
22	Alarm pressure (20ºC gauge pressure)				0.55																0.35	0.55	0.35
23	Locking pressure (20ºC gauge pressure)				0.50																0.30	0.50	0.30
24	SF6 gas annual leakage percent				≤0.5%
25	SF6 gas moisture content(V/V)			u L/L	≤150
26	Mechanical life			Time	3000
27	SF6 gas weight			Kg	35
28	Breaker weight				4000

 

 

Customer Case

 

Packaging & Shipping

After-sales Service
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!

Certifications