GW9 outdoor high-voltage disconnector|Hongtuo Transformer Co., Ltd

summary:

The GW9 outdoor high-voltage disconnector is an outdoor high-voltage electrical equipment with AC 50Hz. The rated voltage levels are 10kV, 15kV and 24kV for the opening and closing of high-voltage lines without load, as well as for the electrical isolation of high-voltage lines with electrical equipment such as the high-voltage bus and circuit breaker being repaired, and also for the opening and closing of small capacitive or inductive current.

This series of outdoor disconnectors meet the relevant provisions of GB1985 AC High-voltage Disconnectors and Earthing Switches, IEC60129 AC Disconnectors and Earthing Switches, and GB/T11022 Common Technical Requirements for High-voltage Switchgear and Control Equipment Standards.

Normal use conditions:

◇ The altitude shall not exceed 1000m;

◇ Ambient air temperature: upper limit+40 ℃, lower limit - 30 ℃ in general areas, and - 40 ℃ in high and cold areas;

◇ The wind pressure shall not exceed 700Pa (equivalent to 34m/s wind speed);

◇ The seismic intensity shall not exceed 8 degrees;

◇ No frequent and violent vibration places;

◇ The common installation site shall be free of gas, steam, chemical deposition, salt mist, dust and other explosive and corrosive substances that seriously affect the insulation and conductivity of the disconnector;

◇ Anti-pollution type is applicable to heavily polluted areas, but should not cause fire and explosive substances.

Main technical parameters:

Project			Company	Parameter
Rated voltage			kV	10		18		20
Rated working voltage			kV	12		17.5		24
Rated insulation level	1min power frequency withstand voltage (effective value)	To the ground	kV	42		55		65
		Fracture		48		65		79
	Lightning impulse withstand voltage (peak)	To the ground		75		105		125
		Fracture		85		120		145
Rated frequency			Hz	50
Eastern Hubei current			A	200	400	630	1250	400	630
4s short-time withstand current			KA	6.3	12.5	20	31.5	16	20
Rated peak withstand current			KA	16	31.5	50	80	40	50
Creepage distance			mm	300		380
Mechanical life			次	2000		2000		2000