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Double-column Horizontal Rotary Disconnector
GW4/RGW double-column outdoor disconnector for visible no-load isolation on 10 kV to 252 kV lines, bus sections, breaker bays and maintenance points, with manual or motor operation and optional grounding.
- Voltage range
- 10 kV to 252 kV
- Rated current range
- 400 A to 4000 A
Service conditions
Outdoor installation limits and listed standards.
Ambient conditions
| Item | Value |
|---|---|
| Altitude | <= 3000 m |
| Ambient temperature | -25 deg C to +40 deg C |
| Wind speed | <= 35 m/s |
| Pollution degree | <= III |
| Earthquake intensity | < 8 degrees |
| Installation environment | Free from flammable, explosive and caustic gas |
| Listed standards | IEC 62271-103, GB1985 and related standards |
Voltage and rating data
Rating tables stay separated by model group so engineers can check voltage, current and withstand values without mixed assumptions.
GW4-10/15/20 reference data
| Item | Unit | 10 kV | 15 kV | 20 kV |
|---|---|---|---|---|
| Rated voltage | kV | 10 | 15 | 20 |
| Maximum voltage | kV | 12 | 17.5 | 24 |
| Rated current | A | 400 / 630 / 1250 | 400 / 630 / 1250 | 400 / 630 / 1250 |
| Rated thermal stability current, 4 s effective | kA | 16 | 20 | 31.5 |
| Rated dynamic stability current, peak | kA | 40 | 50 | 80 |
| 1 min power frequency withstand voltage, to earth | kV | 42 | 42 | 45 |
| 1 min power frequency withstand voltage, fracture | kV | 50 | 50 | 55 |
| Lightning impulse withstand voltage, to earth | kV | 75 | 75 | 105 |
| Lightning impulse withstand voltage, fracture | kV | 85 | 85 | 125 |
| Terminal rated static tension | N | 500 | 500 | 500 |
GW4-40.5 / GW4-40.5D data
| Model | Rated voltage | Rated current | Withstand current | 4 s short-time withstand current |
|---|---|---|---|---|
| GW4-40.5 / GW4-40.5D | 40.5 kV | 400 A | 50 kA | 20 kA |
| GW4-40.5 / GW4-40.5D | 40.5 kV | 630 A | 50 kA | 20 kA |
| GW4-40.5 / GW4-40.5D | 40.5 kV | 1000 A | 63 kA | 25 kA |
| GW4-40.5 / GW4-40.5D | 40.5 kV | 1250 A | 80 kA | 31.5 kA |
GW4-40.5 / 126 / 252 technical data
| Item | Unit | 40.5 kV | 126 kV | 252 kV |
|---|---|---|---|---|
| Rated voltage | kV | 40.5 | 126 | 252 |
| 1 min power frequency withstand voltage, to earth | kV | 95 | 230 | 460 |
| 1 min power frequency withstand voltage, interrupter | kV | 115 | 245 | 460 + 145 |
| Lightning impulse withstand voltage, to earth | kV | 185 | 550 | 1050 |
| Lightning impulse withstand voltage, interrupter | kV | 215 | 630 | 1050 + 200 |
| Rated frequency | Hz | 50 | 50 | 50 |
| Rated current options | A | 400 / 630 / 1000 / 1250 / 1600 / 2000 / 3150 / 4000 | 400 / 630 / 1000 / 1250 / 1600 / 2000 / 3150 / 4000 | 400 / 630 / 1000 / 1250 / 1600 / 2000 / 3150 / 4000 |
| Rated short-time withstand current options | kA | 20 / 20 / 31.5 / 31.5 / 40 / 40 / 50 / 50 | 20 / 20 / 31.5 / 31.5 / 40 / 40 / 50 / 50 | 20 / 20 / 31.5 / 31.5 / 40 / 40 / 50 / 50 |
| Rated peak withstand current options | kA | 40 / 50 / 80 / 80 / 100 / 100 / 125 / 125 | 40 / 50 / 80 / 80 / 100 / 100 / 125 / 125 | 40 / 50 / 80 / 80 / 100 / 100 / 125 / 125 |
| Rated short-circuit duration, main blade / grounding blade | s | 4 / 2 | 4 / 2 | 4 / 2 |
| Creepage distance | mm | 1013-1256 | 1813-2248 | 3150-3906 |
| Mechanical life | times | 2000 | 2000 | 2000 |
| Production weight, no grounding | kg | 360 | 500 | 800 |
| Production weight, single grounding | kg | 390 | 560 | 900 |
| Production weight, double grounding | kg | 430 | 620 | 1000 |
GW4-252 technical data
| Item | Unit | Data |
|---|---|---|
| Rated voltage | kV | 252 |
| 1 min power frequency withstand voltage, to earth | kV | 460 |
| 1 min power frequency withstand voltage, fracture | kV | 460 + 145 |
| Lightning impulse withstand voltage, to earth | kV | 1050 |
| Lightning impulse withstand voltage, fracture | kV | 1050 + 200 |
| Rated frequency | Hz | 50 |
| Rated current options | A | 1250 / 1600 / 2000 / 2500 |
| Rated short-time withstand current options | kA | 31.5 / 40 / 50 / 50 |
| Rated peak withstand current options | kA | 80 / 100 / 125 / 125 |
| Rated short-time withstand current duration, main blade / grounding blade | s | 3 / 2 |
| Horizontal longitudinal terminal load | N | 1500 |
| Horizontal lateral terminal load | N | 1000 |
| Vertical terminal force | N | 1250 |
| Creepage distance options | mm | 5040 / 6300 / 7812 |
| Mechanical life | times | 10000 |
Dimensions, frame data and terminal load
Dimensional data stays grouped with the mechanical load rows used for layout review.
RGW1-24/36 dimensions
| Rated voltage | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| 24 kV | 305 mm | 635 mm | 860 mm | 500 mm | 1110 mm | 1165 mm |
| 36 kV | 445 mm | 775 mm | 1000 mm | 600 mm | 1310 mm | 1365 mm |
Rated mechanical terminal load
| Item | Unit | 40.5 kV | 126 / 252 kV |
|---|---|---|---|
| Horizontal and vertical load | N | 750 | 1000 |
| Horizontal load | N | 500 | 750 |
| Vertical force | N | 750 | 1000 |
GW4-72.5 / 126 / 145 frame dimensions
| Item | L1 | L2 | L3 | L4 | L5 | L6 |
|---|---|---|---|---|---|---|
| 145 kV with earth | 2500 | 1835 | 4000 | 1600 | 2500 | 1360 |
| 145 kV without earth | 2500 | 1835 | 4000 | 1600 | 2500 | 1360 |
| 126 kV with earth | 2000 | 1535 | 3000 | 1300 | 2000 | 1060 |
| 126 kV without earth | 2000 | 1535 | 3000 | 1300 | 2000 | 1060 |
| 72.5 kV with earth | 1700 | 1120 | 2400 | 1000 | 1700 | 760 |
| 72.5 kV without earth | 1700 | 1120 | 2400 | 1000 | 1700 | 760 |
Frame dimension notes
| Item | Value |
|---|---|
| CJ6B motor mechanism weight and output moment | 90 kg / 500 N.m, main blade |
| CS17 manual mechanism weight and operating force | 15 kg / <= 200 N |
| Single-phase windward area | 0.5 m2 |
| Barycenter height | 600 mm |
Operating mechanisms
Manual and motor mechanism references remain visible for RFQ and configuration checks.
Operating mechanisms
| Mechanism type | Configuration | Value |
|---|---|---|
| Manual actuator | No grounding | CS11(F) |
| Manual actuator | Single grounding | CS8-6D(F) |
| Manual actuator | Double grounding | Main blade CS14G(F); earth blade CS11(F) |
| Manual actuator | Control loop voltage | AC220, DC110, DC220 |
| Motor actuator | Model | CJ6 |
| Motor actuator | Motor voltage | AC220, AC380, DC220 |
| Motor actuator | Control loop voltage | AC220, AC380, DC220 |
| Motor actuator | Closing time | 6 +/- 1 s |
GW4-252 operating mechanisms
| Mechanism type | Item | Value |
|---|---|---|
| Motor operating mechanism | Model | CJ6B |
| Motor operating mechanism | Motor voltage | AC380, AC220, DC220, DC110 |
| Motor operating mechanism | Controlling circuit voltage | AC220, AC380, DC220, DC110 |
| Motor operating mechanism | Opening and closing time | 8 +/- 1 s |
| Manual operating mechanism | Model | CS9, CS14G, CS17G |
| Manual operating mechanism | Electromagnetic lock voltage | AC220, DC220, DC110 |
Structure and mechanism notes
Structure, grounding and interlock details for configuration review.
Structure, grounding and interlock details
- GW4 outdoor AC isolation switches are used on high-voltage lines, bus sections, circuit breakers and other electrical equipment where visible no-load isolation is required for maintenance or sectionalizing.
- The structure is a double-column horizontal opening type. The main blade rotates about 90 degrees to open or close.
- Grounding blade options use rotary or linear insertion arrangements. The product can use manual or electric operating mechanisms.
- Mechanism options include CS11, CS8-6D, CS14G, CS17, CS17G, CS9, CJ6 and CJ6B depending on voltage class and configuration.
- GW4-252 configuration includes the disconnector body, CS14G or CS17G manual operating mechanism, transmission accessories and optional CJ6 or other electric mechanism.
- Each GW4-252 pole includes base, post insulators, outlet seat and contacts. Configuration notes list sealed bearing seats, thrust and radial bearings, stainless steel shaft pins, self-lubricating shaft sleeves and silver-plated contact fingers.
- Grounding switch interlock prevents the main conductive circuit and grounding switch from being closed at the same time.
Request a technical quote.
Send voltage class, rated current, insulation level, grounding arrangement, operating mechanism, mounting drawing, quantity, destination standard and required documents for configuration review.
Request QuoteElectrical
- Voltage class
- Rated current
- Insulation or withstand level
Structure
- Mounting drawing
- Operating mechanism
- Phase or pole arrangement
Order details
- Quantity
- Destination standard
- Required documents