Product Overview
The LW-252 is a split-type outdoor SF6 circuit breaker for 252 kV, 50 Hz high-voltage systems. The current product data lists a 4000 A rated current, 50 kA rated short-circuit breaking current, three poles, and outdoor installation. These ratings make the model relevant to projects that require high-voltage switching and fault interruption, subject to coordination with the complete substation design and local requirements.
Key Electrical Ratings
| Model | LW-252 |
| Rated voltage | 252 kV |
| Rated current | 4000 A |
| Rated frequency | 50 Hz |
| Number of poles | 3 |
| Arc-extinguishing medium | SF6 |
| Rated short-circuit breaking current | 50 kA |
| Rated short-circuit withstand current | 50 kA |
| Rated short-circuit making current, peak | 125 kA |
| Rated peak withstand current | 125 kA |
| Rated power-frequency withstand voltage | To earth: 460 kV; fracture: 460 + 146 kV |
| Rated lightning impulse withstand voltage | To earth: 1050 kV; fracture: 1050 + 206 kV |
| Installation | Outdoor |
Configuration and Project Fit
- Split-type outdoor construction: The product is identified as a split-type breaker intended for outdoor installation.
- SF6 interruption medium: SF6 is listed as the arc-extinguishing medium for the LW-252.
- Protection functions: The source product data lists circuit-breaker failure protection and overcurrent protection. Final protection functions depend on the selected relay, control scheme, and system coordination.
- Customization: OEM/ODM service and custom specifications are listed as available. Confirm the required electrical, mechanical, control, and environmental details before ordering.
What to Confirm Before Ordering
Verify the system voltage, continuous current, short-circuit duty, frequency, insulation levels, pole arrangement, operating mechanism, control voltage, protection interface, installation environment, and applicable local standards. The 50 kA withstand value shown in the source data does not state a duration, so that duration should be confirmed for the project.
Supply Information
- Minimum order quantity: 1 piece
- Service: OEM/ODM
- Listed warranty: 12 months
- Listed certification: ISO9001-2000
- Origin: Zhejiang, China
- Transport package: wooden box
Frequently Asked Questions
What are the main ratings of the LW-252?
The product data lists 252 kV rated voltage, 4000 A rated current, 50 Hz frequency, and 50 kA rated short-circuit breaking current.
What are the peak current ratings?
The rated short-circuit making current peak and rated peak withstand current are both listed as 125 kA.
What insulation levels are listed?
The rated power-frequency withstand voltage is listed as 460 kV to earth and 460 + 146 kV at the fracture. The rated lightning impulse withstand voltage is listed as 1050 kV to earth and 1050 + 206 kV at the fracture.
Is the LW-252 intended for outdoor installation?
Yes. The source product data identifies it as a three-pole, split-type outdoor SF6 circuit breaker.
What information should be provided for a quotation?
Provide the system voltage, rated current, fault-current requirements, frequency, insulation requirements, operating and control details, installation conditions, applicable standards, destination, and quantity.
Request a Quote
Send the project ratings and installation requirements for configuration review and quotation of the LW-252 outdoor SF6 circuit breaker.
FAQ
What are the main ratings of the LW-252?
The product data lists 252 kV rated voltage, 4000 A rated current, 50 Hz frequency, and 50 kA rated short-circuit breaking current.
What are the peak current ratings?
The rated short-circuit making current peak and rated peak withstand current are both listed as 125 kA.
What insulation levels are listed?
The rated power-frequency withstand voltage is listed as 460 kV to earth and 460 + 146 kV at the fracture. The rated lightning impulse withstand voltage is listed as 1050 kV to earth and 1050 + 206 kV at the fracture.
Is the LW-252 intended for outdoor installation?
Yes. The source product data identifies it as a three-pole, split-type outdoor SF6 circuit breaker.
What information should be provided for a quotation?
Provide the system voltage, rated current, fault-current requirements, frequency, insulation requirements, operating and control details, installation conditions, applicable standards, destination, and quantity.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
