Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
GW4 Outdoor AC HV Disconnector 72.5-126kV 50Hz: Soft connection terminal, Type I/II grounding switch, mechanism interlock device, anti-pollution type, heavy pollution area, folding ground knife, space reduction, 1000-3000m altitude, -35°C to +40°C, 34m/s wind, 10mm ice, earthquake degree 8.
Advanced GW4 High Voltage Disconnector Series: Outdoor AC high-voltage isolating switch rated 72.5kV/126kV suitable for frequency 50Hz power systems used as switching circuit when voltage is no-load, anti-pollution isolating switch meeting requirements of users in heavily polluted areas effectively solving pollution flashover problem during operation, isolating switch and attached grounding switch each equipped with independent operating mechanisms with mechanism interlocking device ensuring correct operating sequence, Type I and Type II grounding switch with Type II dynamic thermal stability same as isolating switch.
Soft Connection and Advanced Grounding Features: GW4-72.5/126 series incorporates electrical connection terminal transitioned through soft connection providing reliable conductive contact, ground knife adopts external closing arrangement ensuring reliable insulation distance between ground knife and other live end during closing process, GW4-126 model equipped with folding floor knife reducing space occupied, available in ungrounded/single grounded/double grounded and ordinary/anti-fouling type specifications, operates in altitude 1000-3000m, ambient temperature -35°C to +40°C (-40°C alpine areas), wind speed ≤34m/s, earthquake intensity ≤8 degrees, ice coating thickness ≤10mm, providing reliable outdoor AC disconnector solution for 72.5-126kV power systems with heavy pollution area capability.
| GW4-72.5/126 Outdoor AC HV Disconnector Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | GW4-72.5 / GW4-126 | – |
| Category | Switchgear & High Voltage Disconnector | – |
| Product Type | Outdoor AC HV Disconnector (72.5-126kV 50Hz) with Soft Connection Terminal, Type I/II Grounding Switch, Mechanism Interlock and Anti-Pollution Type for Heavy Pollution Area Power System | – |
| Core Technology | 50Hz Power System No-Load Switching Circuit + Voltage No-Load Condition + Anti-Pollution Isolating Switch for Heavily Polluted Areas + Pollution Flashover Problem Solution + Independent Operating Mechanisms for Isolating Switch and Grounding Switch + Mechanism Interlocking Device + Correct Operating Sequence Assurance + Type I and Type II Grounding Switch + Type II Dynamic Thermal Stability Same as Isolating Switch + Soft Connection Terminal Transition + Reliable Conductive Contact + External Closing Arrangement Ground Knife + Reliable Insulation Distance + Folding Floor Knife (GW4-126) + Space Reduction + Ungrounded/Single Grounded/Double Grounded Specifications + Ordinary/Anti-Fouling Type | – |
| Rated Voltage Options | 72.5kV / 126kV | kV |
| Rated Frequency | 50 | Hz |
| Installation Type | Outdoor | – |
| Current Type | AC (Alternating Current) | – |
| 50Hz Power System | Yes (Suitable for Power Systems with Frequency 50Hz) | – |
| No-Load Switching Circuit | Yes (Used as Switching Circuit When Voltage is No-Load) | – |
| Anti-Pollution Isolating Switch | Yes (Anti-Pollution Isolating Switch Design) | – |
| Heavily Polluted Areas | Yes (Can Meet Requirements of Users in Heavily Polluted Areas) | – |
| Pollution Flashover Problem Solution | Yes (Can Effectively Solve Pollution Flashover Problem During Operation) | – |
| Independent Operating Mechanisms | Yes (Isolating Switch and Attached Grounding Switch Each Equipped with Independent Operating Mechanisms) | – |
| Mechanism Interlocking Device | Yes (Equipped with Mechanism Interlocking Device) | – |
| Correct Operating Sequence | Yes (To Ensure Correct Operating Sequence Between Isolating Switch and Grounding Switch) | – |
| Type I Grounding Switch | Yes (Type I Grounding Switch Available) | – |
| Type II Grounding Switch | Yes (Type II Grounding Switch Available) | – |
| Type II Dynamic Thermal Stability | Yes (Type II Grounding Switch Dynamic Thermal Stability Same as Isolating Switch) | – |
| Soft Connection Terminal | Yes (Electrical Connection Terminal Transitioned Through Soft Connection) | – |
| Reliable Conductive Contact | Yes (Conductive Contact is Reliable) | – |
| External Closing Arrangement Ground Knife | Yes (Ground Knife Adopts External Closing Arrangement) | – |
| Reliable Insulation Distance | Yes (Ensure Reliable Insulation Distance Between Ground Knife and Other Live End During Closing Process) | – |
| Folding Floor Knife (GW4-126) | Yes (GW4-126 Model Equipped with Folding Floor Knife) | – |
| Space Reduction | Yes (Reduces Space Occupied by Floor Knife) | – |
| Specification Type | Options |
|---|---|
| Voltage Rating | GW4-72.5 (72.5kV) / GW4-126 (126kV) |
| Grounding Switch Configuration | Ungrounded / Single Grounded / Double Grounded |
| Area of Use | Ordinary Type / Anti-Fouling Type |
| No. | Features of GW4-72.5/126 Series Isolating Switches |
|---|---|
| 1 | The electrical connection terminal is transitioned through a soft connection, and the conductive contact is reliable |
| 2 | The ground knife adopts an external closing arrangement to ensure a reliable insulation distance between the ground knife and the other live end during the closing process |
| 3 | The GW4-126 model is equipped with a folding floor knife, which reduces the space occupied by the floor knife |
| Use Environmental Conditions | Parameter |
|---|---|
| Altitude | 1000-3000m Area |
| Ambient Temperature | Upper Limit: +40°C, Lower Limit: -35°C (Not Lower Than -40°C in Alpine Areas) |
| Wind Speed | ≤34m/s |
| Earthquake Intensity | ≤8 Degrees |
| Ice Coating Thickness | ≤10mm |
| Pollution-Resistant Products | Suitable for Areas with Heavy Pollution |
| Not Suitable For | Places with Flammable Substances, Explosion Hazards, Chemical Corrosion and Severe Vibration |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
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Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
