Power Equipment Product

Type:OFPTB-60-25L

1	Rated Voltage	kVrms	69
2	Rated maximum Vottage	kVrms	72.5
3	Rated frequency	Hz	60
4	Rated Current	Arms	1200
5	Rated short-circuit breaking current	kArms	25
6	Rated short time withstand current(3s)	kArms	25
7	Rated power-frequency withstand Voltage	kVrms	160
8	Rated Lightning impulse withstand Voltage1.2×50μs	kVpeak	350
9	Rated Lightning impulse withstand Voltage250×2500μs	kVpeak	NOTE
10	Rated Lightning impulse withstand Voltage	cycle	5
11	Rated delay trip time	second	2
12	Standard duty cycle for breaker	-	CO-15sec-CO
13	Operation duty cycle for breaker	-	O-0cycle-CO
14	Rated SF6 pressure(20 ℃)	kgf/cm.G	6.0
15	SF6 leakage rate	% / year	0.5
16	Control Vottage	DC(V)	125/24
17	Operation mechanism for breaker	-	Spring

69 kV GCB layout

69 kV GCB structure diagram