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FGW4-252(D)(W)
Fenarro
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The FGW4-252(D)(W) outdoor high voltage disconnect switch is composed of the isolator body, CS14G or CS17G manual operating mechanisms, transmission accessories, and can also be equipped with a CJ6-type motorized mechanism.
This disconnect switch adopts a double-column horizontal opening structure. Each pole consists of a base, post insulators, conductive rods, and contacts. The two post insulators are mounted vertically on bearings at both ends of the base, while the conductive part is installed on top of the insulators. The insulators rotate approximately 90° to perform opening and closing operations.
Key mechanical features include:
Sealed bearing design to prevent dust, moisture, and harmful gases from causing jamming.
Thrust and radial ball bearings for stable torque even after long-term operation.
Stainless steel pins and self-lubricating bushings for durability.
Copper braided conductor straps ensure low resistance and reliable current flow.
Interlock mechanism ensures safe operation between the main conductive path and grounding switch.
| Item | Unit | Parameter | ||
|---|---|---|---|---|
| Rated Voltage | kV | 252 | ||
| Rated Insulation Level | a) 1min Power Frequency Withstand Voltage (RMS Value) | Phase-to-ground | kV | 460 |
| Across Contacts | kV | 460+145 | ||
| b) Rated Lightning Impulse Withstand Voltage (Peak Value) | Phase-to-ground | kV | 1050 | |
| Across Contacts | kV | 1050+200 | ||
| Rated Frequency | Hz | 50 | ||
| Rated Current | A | 1250, 1600, 2000, 2500 | ||
| Rated Short-time Withstand Current | kA | 31.5, 40, 50, 50 | ||
| Rated Peak Withstand Current | kA | 80, 100, 125, 125 | ||
| Rated Short-circuit Duration (Main Knife/Ground Knife) | s | 3/2 | ||
| Mechanical Load of Terminal | Horizontal Creepage | N | 1500 | |
| Horizontal Lateral | N | 1000 | ||
| Vertical Force | N | 1250 | ||
| Creepage Distance | mm | 5040, 6300, 7812 | ||
| Mechanical Life | Times | 10000 | ||
| Motor Operating Mechanism | Model | - | CJG6B | |
| Motor Voltage | V | AC380, AC220, DC220, DC110 | ||
| Control Circuit Voltage | V | AC220, AC380, DC220, DC110 | ||
| Opening/Closing Time | s | 8±1 | ||
| Manual Operating Mechanism | Model | - | CS9, CS14G, CS17G | |
| Electrical Lock Voltage | V | AC220, DC220, DC110 | ||
Altitude: ≤ 1000m
Ambient Temperature: -30°C to +40°C
Wind Pressure: ≤ 700 Pa
Seismic Intensity: ≤ 8 degrees
Installation Site: Free of severe pollution, explosive gases, strong vibrations, and highly corrosive environments
Double-column, horizontal opening structure for stable performance
High-quality sealed bearing design prevents environmental interference
Strong mechanical strength with stainless steel components and molybdenum lithium grease lubrication
Flexible operation with manual or motorized mechanism
Safety interlock prevents misoperation between main circuit and grounding switch
