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Q30 – Automatic Capacitance and Tan Delta Test Set

The Q30 is a fully automatic capacitance and tan delta (power factor) test set designed for high-voltage insulation diagnostics across a wide range of electrical assets. Combining precision, automation, and robust safety features, the Q30 provides highly reliable testing of transformers, bushings, rotating machines, cables, and capacitors.

Built for both field and substation applications, the Q30 supports direct or indirect connections and ensures stable, accurate results even in environments with strong electromagnetic interference.

Function

  • Measures capacitance, dissipation factor (tan δ), and power factor (PF) of HV equipment insulation

  • Calculates equivalent series resistance (ESR), leakage current, and test frequency deviation

  • Automatically performs voltage ramp-up, data acquisition, and result comparison

  • Supports test modes: UST (Ungrounded Specimen Test), GST-Ground, and GST-Guard

  • Performs tests under both power-on and power-off conditions using internal HV source

  • Built-in temperature correction and real-time environmental compensation

  • Auto-discharge function for safe operation after each test

Technical Specifications

Capacitance Measurement

  • Range: 5 pF – 200 μF

  • Accuracy: ±1% ±1 pF

Dissipation Factor / Power Factor

  • Range: 0.001% – 100%

  • Accuracy: ±1% ±0.00040

Test Voltage

  • Output Voltage: 0.5 kV – 10 kV AC (0.1 kV steps)

  • Frequency: 50 Hz / 60 Hz (selectable)

  • Voltage Accuracy: ±2%

Test Modes

  • UST (Ungrounded Specimen Test)

  • GST-Ground (Grounded Specimen Test with ground reference)

  • GST-Guard (Grounded Specimen Test with guard circuit)

Measurement Functions

  • Capacitance (C)

  • Tan Delta (tan δ) / Power Factor (PF)

  • Test Current

  • Equivalent Series Resistance (ESR)

  • Temperature (optional sensor)

Power Supply

  • Input: 100–240 V AC, 50/60 Hz

  • Power Consumption: < 500 VA

Display & Interface

  • LCD: High-brightness graphic interface

  • Data Storage: Internal memory, USB export

  • Communication Ports: USB, RS232

  • Report Format: PDF, CSV

Environmental Conditions

  • Operating Temperature: –10 °C to +50 °C

  • Storage Temperature: –25 °C to +70 °C

  • Humidity: ≤90% RH (non-condensing)

Physical Characteristics

  • Dimensions: 430 × 350 × 250 mm

  • Weight: ~22 kg

Safety & Protection

  • Overvoltage, short circuit, and thermal protection

  • Auto-discharge after test completion

  • Standards Compliance: IEC 60270, IEC 60060-1

Optional Accessories

  • Temperature sensor

  • HV extension cables

  • External printer

  • Transport case

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