GuangDong Heng AnShun Electrical Power Equipment Service Co., Ltd. |
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GW9 Series High Voltage Disconnect Switch AC Powerful Group
Disconneting Isolator
Product Decription:
GW9 Series High Voltage Disconnect Switch is an electrical switch
that is designed to isolate a section of an electrical network or
system from the rest of the system for maintenance or repair
purposes. It is typically used in high voltage power transmission
and distribution systems.
The switch is designed to open and close under normal or abnormal
conditions, such as a fault or overcurrent. When the switch is
open, it physically disconnects the section of the system from the
rest of the network, preventing the flow of electricity to that
section.
High voltage disconnect switches are typically designed to operate
at voltages between 600 volts and 765,000 volts, and they can be
operated manually or automatically. They are typically installed in
substations or on power poles, and they are an important component
of the electrical grid infrastructure.
It is important to follow proper safety procedures when working
with high voltage disconnect switches, as they can be dangerous if
not handled correctly. Only qualified and trained personnel should
be allowed to operate and maintain high voltage equipment.
Application:
1.Maintenance and Repair: The Loadbuster Electrical Isolator is
commonly used to isolate and ground electrical distribution lines
for maintenance and repair activities. It allows maintenance
personnel to work safely on energized equipment without the risk of
electrocution.
2.Emergency Response: The Loadbuster Electrical Isolator can be
used in emergency situations, such as power outages or natural
disasters, to isolate and ground electrical distribution lines and
restore power safely.
3.Switching Operations: The Loadbuster Electrical Isolator can be
used to open or close switches and perform other switching
operations on electrical distribution lines.
Condition:
1.The altitude does not exceed 1000m
2.The ambient air temperature: Maximum+ 40'C ;Minimum:General Area
-30'C, Paramos -40 C;
3.The wind pressure does not exceed 700Pa.(corresponding to 34m/s
wind speed);
4.The earthquake intensity does not exceed 8 degrees;
5.The working situation is without frequent violent vibration;
6.The installation site of ordinary type isolator should be kept
away form gas, smoke chemical deposition, salt-spray fog, dust
and other explosive and corrosive maters that affect seriously
insulation and conduction capability of the isolator
7.Pollution-proof type isolator is applies to severe filthy
conduction area, however, it shouldn't be any explosive matters and
matters causing fire.
Safety risks:
1.Electrical shock: High voltage disconnect switches can deliver a
potentially lethal electric shock if they are not handled properly.
This can happen if the switch is not properly isolated before it is
opened or if there is a fault in the equipment.
2.Arc flash: When high voltage disconnect switches are opened, an
arc flash can occur, which can release a significant amount of
energy in the form of heat, light, and pressure. This can cause
burns, eye damage, and other injuries.
3.Equipment failure: High voltage disconnect switches can fail if
they are not properly maintained or if they are overloaded. This
can lead to equipment damage, electrical fires, and other hazards.
4.Environmental hazards: High voltage disconnect switches are often
located in outdoor environments, where they can be exposed to
extreme weather conditions, such as high winds, heavy rain, and
lightning strikes. These conditions can create additional safety
risks for personnel who are operating or maintaining the equipment.
P.S.
To minimize the risks associated with high voltage disconnect
switches, it is important to follow proper safety procedures,
including using appropriate personal protective equipment,
following lockout and tagout procedures, and ensuring that only
qualified and trained personnel are allowed to operate and maintain
the equipment. Regular maintenance and testing of the equipment can
also help to reduce the risk of equipment failure and other
hazards.
Technical Parameters:
Serial No. | Parameter | Unit | Data | |||||||||
1 | Rated Voltage | kV | 12 | |||||||||
2 | Rated Current | Model No. | (H)GW9-12(W)/630-20 | A | 630 | |||||||
(H)GW9-12(W)/1000-20 | 1000 | |||||||||||
(H)GW9-12(W)/1250-31.5 | 1250 | |||||||||||
3 | 4s Short-time withstanding current | Model No. | (H)GW9-12(W)/630-20 | kA | 50 | |||||||
(H)GW9-12(W)/1000-20 | 50 | |||||||||||
(H)GW9-12(W)/1250-31.5 | 80 | |||||||||||
4 | Rated Insulation Level | Lightning surge withstand voltage(peak) | Polar-to-Earth (Positive & Negative) | kV | 75 | |||||||
Interfracture (Positive & Negative) | 85 | |||||||||||
Industrial frequency withstand voltage (1 min) (Effective value) | Dry Test/Wet Test | Polar-to-Earth | 42(Dry) 34(Wet) | |||||||||
Interfracture | 48(Dry) | |||||||||||
48(Dry) | ||||||||||||
48(Dry) 40(Wet) | ||||||||||||
5 | Main Circuit Resistance | μ Ω | 630 | |||||||||
1000 | ||||||||||||
1250 | ||||||||||||
6 | Mechanical Life Time | times | 50 | |||||||||
50 | ||||||||||||
80 |