Capacitance tester UHV-720

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The UHV-720 is an automatic capacitance bridge tester for industrial field and laboratory use. It measures capacitance, inductance, resistance, current and voltage on single capacitors and capacitor groups (including Δ and Y configurations) without disconnecting the circuit. The instrument displays measured values together with related parameters and supports local printing, data storage and USB export for report generation.

Main features

• Measure a single capacitor inside a parallel capacitor bank without disconnecting wiring — suitable for in-service testing.
• Simultaneous display of measured value and related parameters: voltage, current, loss, reactive capacity, frequency and impedance.
• Inductance measurement with concurrent display of voltage, current, loss, reactive capacity, frequency and impedance.
• Real-time display of current and frequency during current measurements.
• Supports group capacitor measurement and Δ (delta) / Y (star) configurations.
• 320 × 240 large-screen LCD with menu-driven interface for clear on-site operation.
• Built-in non-volatile memory: up to 256 records per test option.
• USB interface for data export and report creation.
• High-precision real-time clock for date/time stamping of measurements.
• Integrated high-speed micro thermal printer for local printouts of measurement and history data.
• Overcurrent protection on the test power output to prevent damage from short circuits.

Technical parameters

• Model: UHV-720
• Output voltage: ≈2 V, ≈20 V
• Output current: ≤ 10 A
• Measuring range (capacitance): 0.1 μF – 2200 μF
• Measuring range (inductance): 0.1 mH – 10 H
• Measuring range (resistance): 50 mΩ – 20,000 Ω
• Measuring range (current): 1 mA – 15 A
• Measuring range (voltage): 0 – 25 V
• Reactive power/capacity indication: 0 – 20,000 kVA
• Accuracy (capacitance / inductance / current / voltage / capacity): ±(1% + 5 digits)
• Resolution: voltage 0.1 mV; current 0.1 mA; capacitance 0.1 nF; inductance 0.1 mH
• Display: 320 × 240 LCD
• Memory: 256 sets per test option; USB data export
• Printer: built-in micro thermal printer
• Protection: overcurrent protection on test output

Typical applications

• On-site testing and troubleshooting of capacitor banks in industrial power systems.
• Maintenance and verification of Δ/Y capacitor configurations.
• Laboratory measurement of capacitors, inductors and associated electrical parameters.
• Quality control and acceptance testing requiring data export and printed records.