Máy cắt GE GL312F1/4031P

Thông số kỹ thuật máy cắt GE

Breaker type	GL 310 F1/4031 P/ GL 310 F3/4031 P	GL 311 F1/4031 P/ GL 311 F3/4031 P	GL 312 F1/4031 P/ GL 312 F3/4031 P
Rated voltage	100 kV	123 kV	145 kV
Rated frequency	50/60 Hz	50/60 Hz	50/60 Hz
Rated normal current	up to 3,150 A	up to 3,150 A	up to 3,150 A
Rated short-circuit breaking current	up to 40 kA	up to 40 kA	up to 40 kA
Rated short-circuit making current	104 kA	104 kA	104 kA
Rated duration of short-circuit	3 s	3 s	3 s
Opening time	28 ms	28 ms	28 ms
Break time	50 ms	50 ms	50ms
Closing time	≤70 ms	≤70 ms	≤70 ms
Average ambient temperature*	-30 °C up to +40 °C	-30 °C up to +40 °C	-30 °C up to +40 °C
Design altitude*	1,000 m.a.s.l.	1,000 m.a.s.l.	1,000 m.a.s.l.
* Standard values according to IEC; temperatures down to -55 °C up to +70 °C and/or higher design altitudes available on request

Technical Data

Breaker type	GL 310 F1/4031 P	GL 311 F1/4031 P	GL 312 F1/4031 P
	GL 310 F3/4031 P	GL 311 F3/4031 P	GL 312 F3/4031 P
	GL 310 F1/4040 P	GL 311 F1/4040 P	GL 312 F1/4040 P
Rated voltage	100 kV	123 kV	145 kV
Rated frequency	50/60 Hz	50/60 Hz	50/60 Hz
Rated normal current	up to 3,150 A	up to 3,150 A	up to 3,150 A
Rated short-circuit breaking current	up to 40 kA	up to 40 kA	up to 40 kA
Rated short-circuit making current	104 kA	104 kA	104 kA
Rated duration of short-circuit	3 s	3 s	3 s
Opening time	28 ms	28 ms	28 ms
Break time	50 ms	50 ms	50ms
Closing time	≤70 ms	≤70 ms	≤70 ms
Average ambient temperature	-30 °C up to +40 °C	-30 °C up to +40 °C	-30 °C up to +40 °C
Design altitude	1,000 m.a.s.l.	1,000 m.a.s.l.	1,000 m.a.s.l.

The GL 310, GL 311 and GL 312 live tank circuit breakers

Interrupter chamber with integral double motion technology and self-blast system
Pressure relief system for passive protection of both substation and personnel
Field-proven, temperature-compensated density monitor with two-stage transducer and three-color dial
Easy access to the SF₆ filling connection (type DILO)
SF₆ non-return (check) valve on each pole column
Protected opening springs inside each pole column
Hot-dip galvanized steel parts
Mechanism housing made completely of aluminum
Reliable spring-operated mechanism with position indicator clearly visible from outside