GB/T 29312-2022 in English
VALIDLow-voltage reactive power compensation switching component
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
《GB/T 29312-2022低压无功功率补偿投切器》由TC266（全国低压成套开关设备和控制设备标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
Interpretation of the core content of the standard
| Technical indicators | 2012 edition | 2022 edition |
|---|---|---|
| Electrical clearance requirements | ≤2.5kV:≥1.5mm | Added altitude correction factor |
| Power frequency withstand voltage test | Main circuit 1kV low voltage side 2500V | Outdoor type increased to 3kV (1500V system) |
Innovation in inrush current limiting technology
The new composite switch adopts parallel zero-crossing ignition technology of electromechanical group: in the static compensation scenario, the inrush current is ≤3In(A), and the conduction time margin of each phase is increased by 40% through simulation test verification in the startup phase
Recommendations for key implementation steps
- Outdoor product moisture and heat resistance verification: 250 hours of continuous operation extreme temperature rise test
- Intelligent function test: Integrated IoT devices need to pass Modbus/TCP communication stress test
- The production site needs to be equipped with a vacuum impregnation device to ensure the 3.2mA insulation level of the wire package
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