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Contact name:Sherlin
GuangDong Heng AnShun Electrical Power Equipment Service Co., Ltd. |
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AC Power Outdoor Disconnector Switch GW9 Series Single Phase Middle Voltage Porcelain Overhead Line Diconnect Switch
Product Decription:
GW9-10 outdoor disconnector switch is a type of portable device used for isolating and grounding electrical distribution lines for maintenance, repair, or emergency purposes. It is a versatile tool that can be used in a variety of applications, including overhead distribution lines, substations, and industrial facilities.
The outdoor disconnector switch is designed to be operated by a single person, making it easy to use and maneuver. It consists of a telescoping fiberglass pole, which can be extended to reach the electrical equipment, and a set of interchangeable attachments, which allow the user to perform a variety of tasks, such as opening or closing switches and grounding lines.
Theoutdoor disconnector switch is designed to provide a visible break in the electrical circuit, which helps protect against accidental contact with energized equipment. It is also designed to withstand harsh environmental conditions, such as high winds, rain, and snow, making it suitable for use in outdoor environments.
Feature:
1.High Voltage Rating: High voltage isolator switches are designed to withstand high levels of voltage, typically ranging from several thousand volts to several hundred thousand volts.
2.Robust Construction: High voltage isolator switches are typically made of materials that are highly resistant to electrical arcing, corrosion, and other forms of damage, such as porcelain or polymer.
3.Arc Chutes: Many high voltage isolator switches are designed with arc chutes, which help to dissipate the heat generated by electrical arcing and prevent damage to the switch.
4.Earth Switch: Some high voltage isolator switches are equipped with an earth switch, which provides an additional level of safety by grounding the isolated section of the circuit.
5.Interlocking Mechanism: To prevent accidental closure of the switch while maintenance work is being carried out, many high voltage isolator switches are equipped with an interlocking mechanism that prevents the switch from being closed until all safety procedures have been followed.
6. Visual Indicators: High voltage isolator switches may also include visual indicators, such as lights or flags, that provide a clear indication of whether the switch is in the open or closed position.
Function:
The main function of a high voltage electrical isolator is to provide electrical insulation between the high voltage AC conductor and the supporting structure, and to support the weight of the conductor. It is designed to withstand high levels of voltage and electrical current, and is typically made of materials that are highly resistant to electrical arcing and corrosion, such as porcelain or polymer.
Operation:
1.Preparation: Before operating the switch, the circuit should be
de-energized and properly grounded to prevent any electrical
hazards. The switch should be inspected for any signs of damage or
wear and tear.
2.Closing the switch: To close the switch, the operator manually or
remotely moves the switch handle or control lever to the closed
position. This connects the circuit to the power source, allowing
current to flow through the circuit.
3.Opening the switch: To open the switch, the operator manually or
remotely moves the switch handle or control lever to the open
position. This disconnects the circuit from the power source,
interrupting the flow of current.
4.Arc management: When the switch is opened, an electrical arc may
occur between the contacts, which can be dangerous and cause damage
to the switch. To manage the arc, the switch may be equipped with
devices such as arc chutes or blowout coils.
5.Safety: Operators of high voltage disconnect switches must follow
proper safety procedures to prevent electrical hazards. This may
include wearing personal protective equipment, working in teams,
and following lockout/tagout procedures.
1.Circuit Isolation: High voltage isolator switches are used to isolate a section of a high voltage circuit for maintenance, repair, or testing purposes. By opening the switch, the section can be effectively disconnected from the rest of the system, allowing work to be carried out safely.
2.Load Switching: High voltage isolator switches can be used as load switches to control the flow of electrical power in a circuit. They are particularly useful in situations where the load is relatively small and does not require a circuit breaker or fuse.
3.Overhead Line Protection: High voltage isolator switches are often installed on overhead power lines to provide protection against lightning strikes and other electrical disturbances. By isolating a section of the line, the switch can help prevent damage to equipment and reduce the risk of power outages.
4.Transformer Protection: High voltage isolator switches are also used to protect transformers by isolating them from the electrical network in the event of a fault or overload. By opening the switch, the transformer can be disconnected from the network, preventing damage to the transformer and other equipment.
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 | ||||||||||||
