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LW8-40.5 High Voltage Electric Vacuum SF6 Circuit Breaker for Substations

LW8-40.5 outdoor high-voltage sulfur hexafluoride circuit breaker (hereinafter referred to as "circuit breaker") is outdoor electrical equipment with three-phase AC 50Hz, which is applicable to the control and protection of 35kV Power Transmission and distribution system and can also be used to connect circuit breakers and switch capacitor banks.

LW8 - 40.5 circuit breaker is equipped with CT T14 spring operating mechanism.

The circuit breaker meets the requirements of GB / T 1984-89 AC high voltage circuit breaker and IEC publication high voltage AC circuit breaker.

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1. The advantages of sulfur hexafluoride sf6 vacuum circuit breakers are numerous. Firstly, they offer superior insulation properties, ensuring a high level of safety during operation...

2. Secondly, these SF6 circuit breakers have a longer lifespan compared to other types, resulting in lower maintenance costs in the long run.

3. Additionally, sulfur hexafluoride sf6 vacuum circuit breakers are more environmentally friendly as they do not contribute to greenhouse gas emissions.

4. Furthermore, the SF6 circuit breakers are highly reliable and efficient in interrupting current flow when necessary. Lastly, these circuit breakers are compact in size, making them suitable for a variety of applications where space is limited..

5. Overall, sulfur hexafluoride SF6 vacuum circuit breakers are a reliable and cost-effective solution for ensuring the safety and efficiency of electrical systems. Their unique combination of insulation properties, longevity, environmental friendliness, reliability, and compact size make them a preferred choice for many industries.

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No.	Item		Unit	Data
1	Rated Voltage		kV	40.5
2	Rated Insulation Level	Lightning Impulse Withstand Voltage (Full-wave Peak Value)		185/215 (Fracture)
		Power Frequency Withstand Voltage (1 minute)		95
3	Rated Current		A	1600, 2000
4	Mechanical Life		Times	3000
5	SF6 Gas Rated Pressure (gauge pressure at 20^oC)		Mpa	0.45
6	Locked Pressure (gauge pressure at 20^oC)		Mpa	0.45
7	Minimum Operating Ambient Temperature		^oC	-30
8	Rated Short-Circuit Breaking Current		kA	25, 31.5
9	Rated Short-Circuit Closing Current (Peak Value)			63, 80
10	Rated Short-Circuit time Withstand Current (Thermal Stable Current)			25, 31.5
11	Rated Peak Value Withstand Current (Strive to Stabilize the Current)			63, 80
12	Rated Out of Step Breaking Current			63, 80
13	Rated Short-circuit Continuous Time		S	4
14	Closing - Opening Time			Not more than 0.1
15	Opening - Closing Time			Not more than 0.1
16	Rated Operating Order			Open- 0.3s - Close Open - 180s - Close Open
17	Rated Opening and Closing Current of Single Capacitor Bank		A	400
18	Under Rated Short-Circuit Breaking Current's Cumulative Breaking Times		Times	15, 10
19	Annual Leakage Gas		% year	Not more than 1
20	SF6 Gas Moisture content (20^oC)		PPm (V)	Not more than 50
21	Rated Operating Voltage of CT14 Spring Operating Mechanism		V	220V
	Closing Coil, Opening Coil Voltage			AC220, DC110, 220
	Voltage of Energy Storage Motor			AC220, DC220
22	SF6 Gas Weight		Kg	8
23	Circuit Breaker (Including Operating Mechanism) Weight			1400
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

No.	Item		Unit	Data
1	Rated Voltage		kV	40.5
2	Rated Insulation Level	Lightning Impulse Withstand Voltage (Full-wave Peak Value)		185/215 (Fracture)
		Power Frequency Withstand Voltage (1 minute)		95
3	Rated Current		A	1600, 2000
4	Mechanical Life		Times	3000
5	SF6 Gas Rated Pressure (gauge pressure at 20^oC)		Mpa	0.45
6	Locked Pressure (gauge pressure at 20^oC)		Mpa	0.45
7	Minimum Operating Ambient Temperature		^oC	-30
8	Rated Short-Circuit Breaking Current		kA	25, 31.5
9	Rated Short-Circuit Closing Current (Peak Value)			63, 80
10	Rated Short-Circuit time Withstand Current (Thermal Stable Current)			25, 31.5
11	Rated Peak Value Withstand Current (Strive to Stabilize the Current)			63, 80
12	Rated Out of Step Breaking Current			63, 80
13	Rated Short-circuit Continuous Time		S	4
14	Closing - Opening Time			Not more than 0.1
15	Opening - Closing Time			Not more than 0.1
16	Rated Operating Order			Open- 0.3s - Close Open - 180s - Close Open
17	Rated Opening and Closing Current of Single Capacitor Bank		A	400
18	Under Rated Short-Circuit Breaking Current's Cumulative Breaking Times		Times	15, 10
19	Annual Leakage Gas		% year	Not more than 1
20	SF6 Gas Moisture content (20^oC)		PPm (V)	Not more than 50
21	Rated Operating Voltage of CT14 Spring Operating Mechanism		V	220V
	Closing Coil, Opening Coil Voltage			AC220, DC110, 220
	Voltage of Energy Storage Motor			AC220, DC220
22	SF6 Gas Weight		Kg	8
23	Circuit Breaker (Including Operating Mechanism) Weight			1400
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

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LW8-40.5 High Voltage Electric Vacuum SF6 Circuit Breaker for Substations

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