Strung & Disc Type Insulator
Strung & Disc Type Insulator
(OP)
Hi,
I would like to know what is the corona inception voltage for Strung & Disc Type Insulator on 275kV Substation ?
The creepage distance is 7500mm ( 300 V x 21 mm / kV ), and the tension sustainable is 120 kN.
Does 1.1 times Phase to Earth Voltage is minimum/maximum value of corona inception voltage ?
I'm first time know these term. Kindly assist me.
Regards,
Linspire
I would like to know what is the corona inception voltage for Strung & Disc Type Insulator on 275kV Substation ?
The creepage distance is 7500mm ( 300 V x 21 mm / kV ), and the tension sustainable is 120 kN.
Does 1.1 times Phase to Earth Voltage is minimum/maximum value of corona inception voltage ?
I'm first time know these term. Kindly assist me.
Regards,
Linspire






RE: Strung & Disc Type Insulator
RE: Strung & Disc Type Insulator
RE: Strung & Disc Type Insulator
I can make this string break into corona at 200 kv. with the insulator string located close to the ground or at 400 kv. with the insulator string at 40-50 feet above ground.
It all depends on the electrical gradient created between this string and your specific ground plane configuration.