Product Introduction
The UHV-410 HV switch operating power supply is a fundamental preventive electrical test essential for the safe operation of high-voltage circuit breakers in power systems. Currently, the power sector generally employs one of the following two methods for this test:
1. Using the DC system of the on-site control cabinet as the test power supply, with voltage adjusted via a sliding wire rheostat. However, this method carries a significant risk: a short circuit or a direct ground fault in the field test wiring can directly impact the entire DC system. Even a minor incident can lead to the loss of high-voltage equipment control on-site, potentially causing the DC system to collapse.
2. Using on-site AC power with a voltage regulator and simple silicon rectification to output DC directly. This approach has several disadvantages:
① The voltage regulator is heavy and cumbersome, making it inconvenient to use, and the output DC has a high ripple content.
② The input and output are not isolated, which may result in the casing becoming live, posing a serious safety hazard to personnel.
To address these issues, our company has developed a new generation of high-voltage switch operating power supply. This hv switch operating power supply manufactures is specifically designed to provide a dedicated test power source for on-site high-voltage switch opening and closing operation tests. It eliminates the need to directly use the DC system from the field control box, effectively preventing the potential hazards associated with such methods and significantly enhancing the safety and reliability of on-site equipment operation.
Thông số sản phẩm
Điều kiện hoạt động | Quyền lực | AC220V±10% 50Hz |
Nhiệt độ | -20℃～50℃ | |
Độ ẩm | 75%RH | |
đầu ra | Vôn | DC25~250V điều chỉnh liên tục 15A |
kích thước | 280*210*150mm(3) | |
Công việc tức thời | 20A | |
hệ số gợn sóng | <2% | |
Ổn định điện áp | <2% | |
Tính năng sản phẩm
1. The UHV-410 hv switch operating power supply manufactures is a dedicated power supply designed specifically for testing and maintaining high-voltage circuit breakers and their operating mechanisms.
2. The hv switch operating power supply supplier features complete input-to-output isolation, ensuring that the DC output is stable, reliable, and free from interference from the input supply.
3. The output has a low ripple factor (<2%), providing a clean DC power source essential for accurate testing.
4. Built-in overcurrent and overvoltage protection safeguards both the instrument and the device under test from potential damage.
5. The wiring is simple and straightforward, making the hv switch operating power supply supplier easy to operate in the field.
6. With its compact and attractive appearance, the unit is lightweight and easy to carry, ideal for on-site testing.
Key Advantages
1. Enhanced Safety: Unlike using the station's critical DC system, which risks a total system collapse if a fault occurs, the hv switch operating power supply factory provides complete isolation between input and output. This prevents any fault in the test wiring from affecting the substation's primary DC control power, ensuring the safety of other critical equipment.
2. Superior Output Quality: It delivers a stable and pure DC output with a low ripple coefficient (<2%). This is a major improvement over the high-ripple output from simple silicon rectifiers, ensuring that the test voltage for the circuit breaker's opening/closing coils is accurate and reliable.
3. Portability and Ease of Use: Weighing only 6kg and featuring a compact design, it is far more convenient than bulky voltage regulators. Its simple, clear wiring and operation reduce setup time and the potential for errors.
4. Built-in Protection: The overcurrent and overvoltage protection features prevent damage to the instrument and the circuit breaker's operating mechanism, saving costs and reducing downtime.
Application Scenarios
Cáchv switch operating power supply is specifically designed for field environments and is essential for:
1. On-Site Commissioning and Maintenance: It is the ideal tool for performing the crucial "low-voltage" or "operating voltage" test on high-voltage circuit breakers (SF6, vacuum, oil-type) during commissioning or scheduled maintenance, verifying their mechanical operation at specified voltage thresholds.
2. Circuit Breaker Repair and Troubleshooting: It serves as a reliable and safe test power source for workshops and service teams when repairing or troubleshooting circuit breaker operating mechanisms, allowing them to simulate control voltage conditions without risk.
3. Preventive Testing: It is used in routine preventive maintenance programs to check the operating characteristics of circuit breakers, ensuring they will function correctly when called upon.
4. Replacing Unsafe Test Methods: It directly replaces the hazardous practice of tapping into the station's live DC system or using heavy, non-isolated AC-to-DC converters, providing a dedicated, safe, and portable solution that improves overall field test safety and efficiency.
