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CIT.300 High-Voltage Capacitor Tester

The CIT.300 Capacitance & Inductance Tester is purpose-built for accurate measurement of high-voltage parallel capacitor groups and reactors in substations and reactive compensation systems. Designed in compliance with national standards such as GB3983.2-1989, DL/T840-2003, and JB5346-1998, it addresses safety and reliability challenges associated with capacitor testing, preventing failures such as oil leakage caused by wire removal.

Using a high-speed microprocessor, the CIT.300 synchronously collects voltage and current signals, automatically calculating capacitance, inductance, and reactive power without requiring disconnection of capacitor wires. This simplifies the testing process, improves efficiency, and avoids equipment damage. Post-test, the instrument automatically calculates phase capacitance capacity, enabling rapid fault detection and identification of quality changes in capacitors or connections.

Key Features

  • Measures capacitance of capacitor groups without wire removal (single-phase and three-phase).

  • Supports inductance testing of reactors for versatile on-site use.

  • Displays capacitance/inductance along with voltage, current, frequency, impedance, and phase angle.

  • Heterodyne power output provides excellent anti-interference performance, ensuring accuracy even in strong magnetic fields.

  • Large 7.0-inch HD touchscreen (1024×600) for clear day/night operation.

  • Built-in memory for 500 sets of measurement data, exportable via USB.

  • Real-time clock ensures accurate time/date calibration.

  • Integrated printer for direct measurement report printing.

Technical Specifications

Test Voltage

  • AC 100V ±10%, 55Hz

  • AC 40V ±10%, 55Hz

  • AC 8V ±10%, 55Hz

  • AC 2V ±10%, 55Hz

Measuring Range and Accuracy

  • Capacitance: 0.1 μF – 10,000 μF ±(1% reading + 0.01 μF)

  • Inductance: 50 μH – 20 H ±(3% reading + 0.05 μH)

  • Current: 5 mA – 2 A ±(3% reading + 0.05 mA)

  • Resistance: 20 mΩ – 20 kΩ ±(3% reading + 0.1 mΩ)

Dimensions

  • Main Unit: 360 × 290 × 170 mm

  • Wire Box: 360 × 290 × 170 mm

Weight

  • Main Unit: 5 kg

  • Wire Box: 5 kg

Test Line Length

  • 5 m standard (custom lengths available)

Usage Conditions

  • Ambient Temperature: –20℃ to +40℃

  • Relative Humidity: ≤85% RH

  • Power Supply: AC 220V ±10%, 50 Hz ±1 Hz

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