Single-phase (3-phase) Insulators

Detailed Product Description

1 Instruction for Insulators

The single-phase or 3-phase insulators are matching 40.5 kV, 72.5 kV, 126 kV, 145 kV, 170 kV, 245 kV and 420 kV GIS or PASS high voltage switchgears. Their dimensions, technical parameters and service environments can be designed according to the requirements of the clients.

2 Technical Parameters

Technical Parameters Table

Highest Voltage for Equipment Um/kV	Lightning Impulse Withstand Voltage BIL/kV (Peak)	Switching Impulse Withstand Voltage in Dry or Wet Condition SIL/kV (Peak)	Power Frequency Withstand Voltage (kV)
72.5	350	/	160
126	550	/	230
145	650	/	275
170	750	/	325
252	1050	850	460
420	1425	1050	650

Note: Those listed in the table above are the routine parameters, if there is any different parameter required, we can design according to the technical parameters of the clients.