Power energy systems hide critical issues in low-voltage AC signals, and the Digital AC Millivoltmeter excels at detecting these. It measures μV to mV-level signals precisely, solving hidden faults in grids, transformers, and renewable setups.
Power Transformer: Monitoring Core Loss Signals
Firstly, transformers suffer from core loss or insulation degradation that manifests as weak AC signals. The Digital AC Millivoltmeter tests the transformer’s no-load induced voltage, identifying abnormal signal fluctuations.
Moreover, its high input impedance (≥10MΩ) avoids loading the test circuit, ensuring accurate readings. This solution catches early transformer faults, preventing costly breakdowns during peak power demand.
Power Grid: Detecting Partial Discharge Signals
Partial discharge in grid cables or switchgear emits faint AC millivolt signals, a precursor to insulation failure. The Digital AC Millivoltmeter captures these signals, even amid industrial electromagnetic interference.
นอกจากนี้, it features a low-noise amplifier that enhances signal clarity. Technicians use this data to locate discharge points, solving the problem of hidden grid insulation issues before they cause outages.
Renewable Energy: Optimizing Solar & Wind Inverters
Secondly, solar PV inverters and wind turbine converters produce small AC ripple signals that indicate efficiency. The Digital AC Millivoltmeter measures these ripples, verifying if inverters operate within optimal ranges.
Furthermore, its portable design allows on-site testing of remote renewable installations. This solves the challenge of monitoring inverter performance in hard-to-reach areas, boosting energy conversion efficiency by up to 3%.
Energy Storage Systems: Testing BMS Signal Integrity
Energy Storage Systems (ESS) rely on BMS to monitor cell voltages, which transmit weak AC sensing signals. The Digital AC Millivoltmeter checks these signals for distortion, ensuring BMS accuracy.
For example, it detects signal interference from ESS cooling systems, a common cause of BMS misreadings. This solution prevents overcharging or under-discharging of battery packs, extending their lifespan.
Substation: Calibrating Protection Relay Signals
ในที่สุด, substation protection relays use low-voltage AC signals to trigger fault responses. The Digital AC Millivoltmeter calibrates these signals, ensuring relays activate correctly during grid faults.
Its high resolution (0.1μV) meets IEC 61850 มาตรฐาน, solving the problem of relay calibration inaccuracies that lead to false tripping or failed protection.
Core Value: Precision for Proactive Maintenance
The Digital AC Millivoltmeter combines ultra-high sensitivity with user-friendly features like data logging. It’s more affordable than specialized signal analyzers, making it accessible to utility teams.
In power energy, it’s not just a meter—it’s a solution that turns faint signals into actionable insights, ensuring grids and energy assets run safely and efficiently.
บริษัท เจทรอน อินสทรูเมนท์ส จำกัด, จำกัด. has specialized in the electronic measurement field for 35 years, covering various measurement needs across the entire electronic industry chain and providing precise measurement support.
