Product Description
This voltage indicator is designed by our company to meet the requirements of power supply bureaus and market demands, incorporating a self-testing function. The front panel features dedicated buttons for Self-Test and Voltage Verification. Pressing the self-test button initiates an internal diagnostic sequence to verify indicator performance, enhancing operational reliability (refer to "Display Unit Functions" for details).
The low-power consumption LED components in its circuitry enable:
- Reduced overall power consumption
- Enhanced system stability
- Improved long-term reliability
Typical Applications
Widely deployed in indoor high-voltage equipment rated at 7.2, 12, 24, and 40.5kV (50Hz), this device:
- Voltage Monitoring: Works in conjunction with voltage sensors to provide real-time high-voltage status indication
- Anti-Misoperation Enhancement: When paired with disconnectors and earthing switches, significantly improves interlocking safety performance
Technical Features
- Self-Diagnostic Capability: Conforms to IEC 61850-7-420 for process bus communication
- Visual Indication: High-contrast LED array with phase-specific color coding (Y/G/R for A/B/C phases)
- Environmental Rating: IP4X enclosure (IEC 60529) with -25°C to +55°C operating range
- Safety Compliance: Meets GB/T 1985-2014 and DL/T 593-2016 for high-voltage switchgear
Key Advantages
- Energy Efficiency: ≤1.5W typical power consumption
- MTBF: >100,000 hours (calculated per MIL-HDBK-217F)
- Diagnostic Coverage: 99.2% fault detection rate (IEC 61508 SIL2 certified)
Application Notes
For optimal performance in GIS/HGIS applications, we recommend using with our SVS-40.5kV Voltage Sensor Series featuring:
- Measurement Range: 0-120% Un (adjustable)
- Accuracy: ±0.5% of reading
- Isolation Voltage: 50kVrms (1 minute)