GuangDong Heng AnShun Electrical Power Equipment Service Co., Ltd.
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Portable Electrical High Voltage Isolator Switch GW9 Series 630A Gray Color Overhead Line Group Diconnect Switches
Product Description:
The high voltage isolator switch is a new type of disconnecting switch designed and manufactured by synthesizing the domestic experience of existing disconnecting switch production and foreign advanced technology.
The isolator switch is composed of base, pillar insulator, conductive part and organ part. It has the advantages of simple structure, less maintenance, high level of disconnection, high reliability, etc. It reaches the level of similar products at home and abroad.
Moreover, there is another type of isolator switch called GW9-12(W), with single-stage structure is suitable for power system with frequency 50Hz and line voltage 10kv.
It is suitable for use in power systems with a frequency of 50Hz and a line voltage of 10kv, and is used for closing and dividing lines when there is voltage and no load, and the antifouling isolating switches can meet the requirements of users in heavily fouled areas, and can effectively solve the problem of fouling flash that occurs when the isolating switches are in operation.
Advantage:
1.Simple structure: The isolation switch is designed with a straightforward structure, making it easy to understand and operate.
Low maintenance: Due to its design and construction, the isolation switch requires minimal maintenance, reducing the need for frequent inspections and repairs.
2.High breaking and closing linearity: The isolation switch has excellent breaking and closing linearity, ensuring smooth and reliable operation during switching operations.
3.High reliability: The switch is built to provide dependable performance, minimizing the risk of malfunctions or failures during operation.
4.Comparable to international standards: The GW9-12(W) series isolation switch meets or exceeds the level of similar products both domestically and internationally, ensuring its compatibility and competitiveness in the market.
Feature:
1.Safety: The primary feature of a hookstick switch is safety. It allows maintenance personnel to safely disconnect a circuit from its power source without the risk of electrocution.
2.Remote Operation: The switch can be operated from a safe distance using a long pole or "hookstick," which eliminates the need for personnel to be in close proximity to the high-voltage equipment.
3.Easy to Use: Hookstick switches are designed to be easy to use and require minimal training to operate.
4.Durability: They are designed to withstand harsh environmental conditions, such as extreme temperatures, humidity, and corrosive substances.
5.High Voltage Rating: Hookstick switches are typically used in high-voltage power transmission and distribution systems and have a high voltage rating, ranging from a few thousand volts to several hundred thousand volts.
6.Versatility: They can be used for a wide range of applications, including switching and isolating circuits, as well as for grounding and de-energizing equipment.
7.Visual Indicators: Some hookstick switches have visual indicators that show whether the switch is open or closed, making it easier for operators to know the status of the circuit.
Structure:
This product is composed of base (plate), post insulator, conductive part and interlock device. One end of the knife is installed on the dynamic contact knife head through bolts, and the other end of the knife is separately connected with the static contact head, and each side is maintained in a good contact state by the pressure of the compression spring. Each knife is slot-shaped type, which not only increases the heat dissipation surface of the knife, but also conducive to reducing the temperature rise, and improve the mechanical strength of the knife, making the dynamic thermal stability against short circuit. The interlocking parts installed at the non-rotating end of the contact knife and the static locking hook on the static contact constitute the opening locking device, which is self-locking when the brake is closed, so that the brake knife will not fall off by itself due to its own weight or the action of electric power, resulting in the opening of the brake without cause.
Application:
1.Power Grids: The overhead high voltage vertical isolator switch is a critical component in power grids, where it is used to isolate sections of the transmission line for maintenance or repair. This helps ensure that the power grid remains operational and reliable, even during maintenance or repair activities.
2.Electrical Substations: The overhead high voltage vertical isolator switch is also commonly used in electrical substations, where it is used to isolate individual transformers or other equipment for maintenance or repair. This helps ensure that the substation remains operational and reliable, even during maintenance or repair activities.
3.Renewable Energy Systems: The overhead high voltage vertical isolator switch is also used in renewable energy systems, such as wind and solar power plants, to isolate sections of the transmission line for maintenance or repair. This helps ensure that the renewable energy system remains operational and reliable, even during maintenance or repair activities.
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 | ||||||||||||
