1 / 5
Bowser Electric
Bowser Electric
Fast response from inquiry to technical confirmation. Supported by an international sales team and 50+ experienced engineers.
Our team supports product selection, technical confirmation, and project-based solution matching.
Products have been supplied for domestic and overseas power distribution projects, including utility, substation, and EPC-related applications.
Partial Project References:
Project reference documents and technical files are available upon request. Contact us to discuss your project requirements.
The (H)GW9-12 series outdoor high-voltage AC single-phase isolation switch is used for connecting 10kV lines with voltage and without load, as well as for electrical isolation of high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage lines.
The isolation switch complies with technical standards such as GB/T 1985-2014 "High voltage AC isolation switches and grounding switches" and DL/T 486-2010 "High voltage AC isolation switches and grounding switches".
This outdoor disconnect switch is designed for medium and high voltage distribution lines, substations and outdoor power equipment. It provides a visible isolation point for maintenance, inspection and circuit sectionalizing. The two-column insulator structure is suitable for outdoor electrical isolation in power distribution systems.
| Project / Parameter Item | Unit | Technical Parameter | |
|---|---|---|---|
| Rated frequency | Hz | 50 | |
| Rated voltage | kV | 12 | |
| Rated current | A | 630 (1250) | |
| Rated short-term withstand current and duration | kA/s | 20 (25) / 4 | |
| Rated peak withstand current | kA | 50 (63) | |
| Rated short-term power frequency withstand voltage | Interphase and ground (dry test) | kV/min | 42 / 1 |
| Fracture surface (dry test) | 48 / 1 | ||
| Interphase and ground (wet test) | 30 / 1 | ||
| Fracture surface (wet test) | 36 / 1 | ||
| Rated lightning impulse withstand voltage | Interphase and ground | kV | 75 |
| Fracture surface | 85 | ||
| Loop resistance | μΩ | ≤ 80 | |
| Mechanical lifespan | Times | 3000 | |
| Pollution level | - | e-Level | |
| Creepage distance | mm | ≥ 372 | |
Note: If the parameters requested by the user are beyond the scope of the above table, they can be determined after consultation.
Simply let us know what you need, and we'll assist you in selecting the right model.
We support product selection, parameter confirmation, and technical documentation validation. In-house production and testing capabilities guarantee stable quality and project schedule alignment.
We welcome customers and project partners to visit the factory for inspection, product discussion, and technical alignment sessions.
During your visit, our technical sales and engineering teams can assist with parameter verification, sample review, and specialized project-based adjustments.
Our facilities feature fully operational laboratories supporting routine testing, safety verification, and critical data collection.
IEC type test reports support is available for selected models, including KEMA and TÜV certifications.
Contact us directly if you require full copies of the certificate portfolio and associated test papers.
How it works from inquiry to implementation:
Whether you are sourcing individual components or planning full-scale utility substations, we are ready to assist with modeling evaluation, product drawings, and quality verification. Send us your requirements to take the next step.
