Indoor 40.5kv metal HV SF6 circuit breaker

Indoor live tank high-voltage SF6 circuit breaker is an indoor device in AC 50Hz three-phase system, which can be used for protection and control in industrial and mining enterprises, power plants and substations. And can be used in frequent operation places, can also be used as a contact circuit breaker and meet the capacitor bank circuit breaker.

General:

SF6 live tank circuit breaker can be equipped with BGC-40.5, JYN1-40.5, XGN17-40.5 switchgear, can also be equipped with KYN61-40.5, KYN10-40.5 metal closed shift high voltage switchgear.The item is equipped with CT10, 17, 19 or continuous type spring operating mechanism.

Service Environment

Ambient temperature: minimum -25℃ Maximum +40℃
Altitude: No more than 2000m
Earthquake intensity: not more than 8 degrees
Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%.
No fire. Explosion risk. No corrosive gases and violent vibration.

Technical Data

Name		Unit	Data
Rated voltage		kV	40.5
Rated frequency		Hz	50
Rated current		A	1600
Rated short-circuit breaking current		kA	25
Rated short-circuit closed current（peak）		kA	63
Rated short-time withstand current （4S）		kA	25
Rated peak withstand current		A	63
Rated capacitor bank breaking current		A	800
Rated operating sequence			O-0.3s-CO-180s-CO
Closing time		ms	≤150
Opening time		ms	≤60
insulation level	Rated lightning impulse withstand voltage	kV	185
	1min power frequency withstand voltage		95
The number of times the rated short circuit current is broken		Times	8
Mechanism life		Times	6000
Number of times the rated current is broken		Times	2000
Rated out-of-step breaking current		A	6.3
SF6 rated pressure (20C gauge pressure)		Mpa	0.65
Alarm pressure (20℃)		Mpa	0.62
Locking pressure (at 20°C)		Mpa	0.59
Annual air leakage rate		%year	1
Moisture content		UL/L	≤150
SF6 gas weight		kg	2.5
Total circuit breaker weight		kg	135