Leave Your Message
Electrical knowledge

Electrical knowledge

ZN85-40.5 Vacuum Circuit Breaker - 40.5KV Indoor, 1250A, 31.5kA, Spring Mechanism

ZN85-40.5 Vacuum Circuit Breaker - 40.5KV Indoor, 1250A, 31.5kA, Spring Mechanism

2026-03-10
With the growth of technology in electrical engineering, ensuring power system reliability, efficiency, and safety is of utmost priority. One high-voltage product that exemplifies this demand for high-quality solutions is the ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker, which was speci...
view detail
Maintenance methods for dry-type transformers

Maintenance methods for dry-type transformers

2025-12-06
Key Maintenance Points for Dry-Type Transformers Inspection of Appearance and Environment Inspect the housing, porcelain bushings, and nameplate at regular intervals to ensure no damage has occurred to them. Remove dirt and debris from the surfaces of the units where appropriate, and take m...
view detail
English description of the differences between switchgear cabinets and box‑type substations

English description of the differences between switchgear cabinets and box‑type substations

2025-12-03
In today's power grids, switch boxes and mini power centers fill separate but linked spots. Switch boxes mostly handle the on/off, safety, and changeover of power lines, holding tools such as breakers, cut-offs, and measuring devices, yet they don't tweak voltage levels. A mini power center, h...
view detail
Models, classifications, technical parameters, and characteristics of oil/vacuum circuit breakers for high-voltage circuit breakers

Models, classifications, technical parameters, and characteristics of oil/vacuum circuit breakers for high-voltage circuit breakers

2025-11-28
High voltage circuit breaker is one of the main equipment in substations and distribution stations, which has a complete arc extinguishing structure and sufficient interruption capacity. Can reliably cut off working current or fault current under normal conditions. There are many types of ci...
view detail
What precautions should be taken during the operation of high-voltage circuit breakers, isolating switches, load switches, and fuses?

What precautions should be taken during the operation of high-voltage circuit breakers, isolating switches, load switches, and fuses?

2025-11-28
High voltage circuit breakers, isolating switches, load switches, and fuses should be inspected, maintained, and tested on a periodic basis. Their installation and testing should comply with standards, and the busbars connected to them during operation should not have any deformation or discolo...
view detail
Common starting methods and benefits of soft starting for 6-10kV medium and high voltage motors

Common starting methods and benefits of soft starting for 6-10kV medium and high voltage motors

2025-11-27
1. Common starting methods for medium and high voltage (6-10 kV) motors AC motors are widely used in various fields. To solve the impact of AC motors on the power grid and machinery during the starting process, many methods have been adopted, including series resistance starting, series reacto...
view detail