Gw4-126kv Outdoor High Voltage Disconnector Electrical Switch
| Customization: | Available |
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| Type: | High-voltage |
| Structure: | Double-column Disconnector |
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Basic Info.
- Model NO.
- GW4
- Installation
- Outdoor High-voltage
- Operation
- Electric
- Grounding Mode
- Grounding
- Movement Mode
- Vertical Rotary Type
- Number of Poles
- Three Pole
- Grounding
- Double Ground
- Series
- Three
- Run
- Turn the Horizontal
- Structure of Operating
- Electric
- Rated Voltage
- 40.5-252kv.
- Rated Current
- 1250A-4000A
- Rated Frequency
- 50Hz
- Rated Peak Withstand Current
- 100ka
- Transport Package
- Plywood Box
- Specification
- GW4-Customizable
- Trademark
- HZEC
- Origin
- China
- Production Capacity
- 30000cover/Years
Packaging & Delivery
- Package Size
- 170.00cm * 140.00cm * 190.00cm
- Package Gross Weight
- 1400.000kg
Product Description
Center- breaker disconnectors GW4(up to 252kV)
The GW4 series outdoor high-voltage AC disconnect switch is a three-phase, 50Hz outdoor high-voltage device used in power systems with rated voltages of 35 to 220kV. It is used for switching operations without load and for electrically isolating equipment under maintenance from live circuits.
Main Features
Simple structure, excellent performance, and reliable operation.
Adopts a self-actuating contact structure with high reliability. The contact pressure remains constant during operation, requiring no inspection or adjustment. Good self-cleaning capability. Automatically increases contact pressure when passing short-circuit current. Features an anti-corrosion design with excellent rust resistance. The overall structure has good stability. Easy to install and adjust.
Structure:
The GW4 series outdoor AC high voltage isolating switch is a double-column, horizontally rotating center-break isolating switch. The main current-carrying parts of the main knife switch are primarily made of aluminum alloy. The connection between the terminal and the aluminum alloy parts is ensured by copper braided wire. The terminal can freely rotate 90 degrees to ensure a flexible connection with the terminal.
This product comes in three specifications: non-grounded, single-grounded, and double-grounded. The isolating switch can be equipped with either a manual operating mechanism or a motor operating mechanism. The grounding switch can be equipped with a manual operating mechanism and a motor operating mechanism.
Application: In rated voltage 40.5~252kV power system, to separating the circuits under off-load status, set up air electrical clearning between the tested electrical apparatuses and electrified circuit.
Standards: IEC 62271-102
Parameters: Rated voltage: 40.5-252kV.
Rated current: 1250-4000A.
Rated short time withstand current, 3s: 50kA.
Features: 1.Outstanding performances and reliable operation.
2.Free maintenance due to its stable contact pressure and self-cleaning capability.
3.High anticorrosion capability.
4.Easy installation and adjustment.
GW4 Series Outdoor AC High Voltage Isolating Switch Typical Technical Parameters (40.5 kV)
| Project | Description | |||
| (Rated Voltage | 40.5kV | |||
| Rated Current | 2000A | |||
| Rated Peak Withstand Current | 100kA | |||
| 3s Rated Short-time Withstand Current Effective Value | 40kA | |||
| Rated Frequency | 50Hz | |||
| Terminal Rated Tensile Force | Longitudinal | 750N | ||
| Horizontal | 400N | |||
| Vertical | 500N | |||
| Rated Insulation Level | Rated Short-time Power Frequency Withstand Voltage Effective Value | To Ground | 95kV | |
| Across the Break | 110kV | |||
| Lightning Impulse Withstand Voltage Peak Value | To Ground | 185kV | ||
| Across the Break | 215kV | |||
| Support Insulator Creepage Ratio | III | 25mm/kV | ||
| IV | 31mm/kV | |||
| Support Insulator Anti-bending Breaking Load | 4000N | |||
| Mechanical Life | 3000Times | |||
| Single Hit Weight | 80kg | |||
| Opening and Closing Switching Current | - | |||
| Ground Switch Inductive Current Switching Capability Test | Electromagnetic Compatibility | - | ||
| Static Compatibility | - | |||
GW4 Series Outdoor AC High Voltage Isolating Switch Typical Technical Parameters (126 kV)
| Project | Description | |||
| Rated Voltage | 126kV | |||
| Rated Current | 2000A | |||
| Rated Peak Withstand Current | 100kA | |||
| 3s Rated Short-time Withstand Current Effective Value | 40kA | |||
| Rated Frequency | 50Hz | |||
| Terminal Rated Tensile Force | Longitudinal | 1000N | ||
| Horizontal | 750N | |||
| Vertical | 1000N | |||
| Rated Insulation Level | Rated Short-time Power Frequency Withstand Voltage Effective Value | To Ground | 230kV | |
| Across the Break | 230+70kV | |||
| Lightning Impulse Withstand Voltage Peak Value | To Ground | 550kV | ||
| Across the Break | 550+100kV | |||
| Support Insulator Creepage Ratio | III | 25mm/kV | ||
| IV | 31mm/kV | |||
| Support Insulator Anti-bending Breaking Load | 6000N | |||
| Mechanical Life | 3000Times | |||
| Single Hit Weight | 240kg | |||
| Opening and Closing Switching Current | 1600 | |||
| Ground Switch Inductive Current Switching Capability Test | Electromagnetic Compatibility | Rated Inductive Current:50A | ||
| Rated Inductive Voltage:0.5kV | ||||
| Static Compatibility | Rated Inductive Current:0.4A | |||
| Rated Inductive Voltage:3kV | ||||
GW4 Series Outdoor AC High Voltage Isolating Switch Typical Technical Parameters (145 kV)
| Project | Description | |||
| Rated Voltage | 145kV | |||
| Rated Current | 2000A | |||
| Rated Peak Withstand Current | 100kA | |||
| 3s Rated Short-time Withstand Current Effective Value | 40kA | |||
| Rated Frequency | 50Hz | |||
| Terminal Rated Tensile Force | Longitudinal | 1000N | ||
| Horizontal | 750N | |||
| Vertical | 1000N | |||
| Rated Insulation Level | Rated Short-time Power Frequency Withstand Voltage Effective Value | To Ground | 275kV | |
| Across the Break | 315kV | |||
| Lightning Impulse Withstand Voltage Peak Value | To Ground | 650kV | ||
| Across the Break | 750kV | |||
| Support Insulator Creepage Ratio | III | 25mm/kV | ||
| IV | 31mm/kV | |||
| Support Insulator Anti-bending Breaking Load | 6000N | |||
| Mechanical Life | 3000Times | |||
| Single Hit Weight | 300kg | |||
| Opening and Closing Switching Current | 1600 | |||
| Ground Switch Inductive Current Switching Capability Test | Electromagnetic Compatibility | Rated Inductive Current:80A | ||
| Rated Inductive Voltage:2kV | ||||
| Static Compatibility | Rated Inductive Current:2A | |||
| Rated Inductive Voltage:6kV | ||||
GW4 Series Outdoor AC High Voltage Isolating Switch Typical Technical Parameters (252 kV)
| Project | Description | |||
| Rated Voltage | 252kV | |||
| Rated Current | 3150A | |||
| Rated Peak Withstand Current | 125kA | |||
| 3s Rated Short-time Withstand Current Effective Value | 50kA | |||
| Rated Frequency | 50Hz | |||
| Terminal Rated Tensile Force | Longitudinal | 1500N | ||
| Horizontal | 1000N | |||
| Vertical | 1000N/1250N | |||
| Rated Insulation Level | Rated Short-time Power Frequency Withstand Voltage Effective Value | To Ground | 460kV | |
| Across the Break | 460+145kV | |||
| Lightning Impulse Withstand Voltage Peak Value | To Ground | 1050V | ||
| Across the Break | 1050+200kV | |||
| Support Insulator Creepage Ratio | III | 25mm/kV | ||
| IV | 31mm/kV | |||
| Support Insulator Anti-bending Breaking Load | 8000N | |||
| Mechanical Life | 3000Times | |||
| Single Hit Weight | 650kg | |||
| Opening and Closing Switching Current | 1600 | |||
| Ground Switch Inductive Current Switching Capability Test | Electromagnetic Compatibility | Rated Inductive Current:80A | ||
| Rated Inductive Voltage:1.4kV | ||||
| Static Compatibility | Rated Inductive Current:1.25A | |||
| Rated Inductive Voltage:5kV | ||||
- Altitude does not exceed: 2000m
- Ambient temperature: -40°C ~ +40°C
- Maximum wind speed: 34m/s
- Earthquake resistance: Horizontal acceleration: 0.250g, Vertical acceleration: 0.125g
- Maximum ice thickness: 10mm
- Insulation contamination level: III (25mm/kV), IV (31mm/kV)
- Installation site should be free of easily flammable, explosive, and chemically corrosive substances, and should not be subject to frequent and severe vibrations.
Working Principle:
During closing, the double columns rotate inward simultaneously, and the contact fingers engage with the contact seats. During opening, the double columns rotate outward simultaneously, and after the contact fingers disengage from the contact seats, they continue to rotate to 90 degrees and stop, forming a clear and noticeable isolation break. When the grounding switch is closed, the grounding contact rotates upward at an angle. After the movable and stationary contacts engage, the movable contact moves upward and inserts into the stationary contact, completing the closing action. The opening process is the reverse of this.
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. We have train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!
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