GW4-126D(W) Outdoor AC High Voltage Isolation SwitchDetailed product description：

GW4-126 outdoor AC high voltage isolation switch (hereinafter referred to as isolation switch). Suitable for power systems with a frequency of 50Hz and a rated voltage of 126kV, used as a switching circuit when there is voltage and no load. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover during the operation of the isolation switch.  

Model and its meaning

Environmental conditions for use:
+Altitude: below 3000m;
+Environmental temperature: upper limit of 40 ℃, decrease by -25 ℃;
+Wind speed not exceeding 35m/s;
+The seismic intensity shall not exceed 8 degrees;
+The thickness of ice cover shall not exceed 10mm;
+Pollution resistant products are suitable for heavily polluted areas;
+The installation site should be free from flammable, explosive hazards, chemical corrosion, and severe vibrations.

GW4-126D (W) Outdoor AC High Voltage Isolation Switch Main Technical Parameters:

serial number	Project		unit	Technical specifications		Remarks
one	rated voltage		kV	one hundred and twenty-six
two	rated current		A	six hundred and thirty	one thousand two hundred and fifty
three	Rated peak withstand current		kA	fifty	eighty
four	4sShort time withstand current		kA	twenty	thirty-one point five
five	Rated static tension of the terminal		N	seven hundred and thirty-five
six	rated frequency		Hz	fifty
seven	1minPower frequency withstand voltage (effective value)		kV	Jijian*Extremely to the groundeight hundred and fifteen		*Suitable for three pole linkage
				fracturetwo hundred and ten
eight	Lightning impulse withstand voltage (effective value)		kV	Jijian*Extremely to the groundfour hundred and fifty		*Suitable for three pole linkage
				fracturefive hundred and twenty
nine	Product single pole weight (body)		kg	≈two hundred and forty
ten	Supporting organization			Isolating switch:CS14Manual mechanism Grounding switch:CS14Manual mechanism		Selected by the user
eleven	Grounding form			Ungrounded, single grounded, or double grounded
twelve	Crawling distance of pillar insulators		mm	Normal typeone thousand eight hundred and seventyPollution resistant typethree thousand and fifty		Special orders can also be accepted
thirteen	Assemble grounding switch	Short time withstand current	kA	12.5(2s)	20(2s)
		Peak withstand current	kA	thirty-one point five	fifty

Main structural description
The isolation switch is a double column horizontal rotating type, consisting of a chassis, post insulators, conductive system, grounding switch (excluding ungrounded), and transmission system. The products are divided into two types: ordinary type and stain resistant type. The pollution resistant type can be used in Class III polluted areas.
According to user needs, the grounding knife equipped with the product is assembled on the rotating shaft of the base. The static contact is installed on the main electrical system pole, and there is a mechanical interlock between the grounding switch and the isolation switch, which can ensure the sequential action of the main switch and the ground switch and the main switch (the power distribution mechanism can be used as needed).
The isolation switch is made in a single pole form and can form a three pole linkage through inter pole connections. This switch can also be used single pole as needed.
When the isolating switch is equipped with CS14 manual support mechanism, one non grounded mechanism is equipped, two single grounded mechanisms are equipped, and three double grounded mechanisms are equipped.

GW4-126D (W) Outdoor AC High Voltage Isolation Switch Appearance and Installation Dimensions (The following image can be clicked to enlarge)