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Capacitance tester UHV-525
for high-voltagepowerfrequency

Capacitance tester - UHV-525 - Wuhan UHV Power Technology Co.,Ltd. - for high-voltage / power / frequency
Capacitance tester - UHV-525 - Wuhan UHV Power Technology Co.,Ltd. - for high-voltage / power / frequency
Capacitance tester - UHV-525 - Wuhan UHV Power Technology Co.,Ltd. - for high-voltage / power / frequency - image - 2
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Go to the Wuhan UHV Power Technology Co.,Ltd. website for more information

Characteristics

Test type
for high-voltage, power, capacitance, frequency
Tested product
for cables, for electrical equipment, electrically-driven
Applications
for power systems
Configuration
mobile
Other characteristics
digital, with LCD screen, with memory

Description

Overview

  • The UHV-525 Transmission Cable Parameter Tester is a field instrument for precision measurement of power-frequency parameters on high-voltage transmission lines (overhead, underground cable, hybrid). It measures capacitance, impedance, impedance angle and resistance and is suitable for tests under mains or generator-supplied conditions after outages.


Key features

  • Integrated compact design: consolidates functions that traditionally required multiple devices into a single portable housing for easier transport and field deployment.
  • Simple power requirements: operates from AC 220 V mains, avoiding the need for on-site 380 V connections.
  • Patented anti-induction circuit (patent no. 201020687669.X) for operation under high induced voltages (up to 10 kV) and enhanced immunity to induced currents.
  • Frequency conversion and digital filtering: selectable output frequency (45 Hz / 55 Hz) with digital filtering to reduce industrial frequency interference.
  • High-speed digital signal processor: fast, accurate processing of measurement signals and computations.
  • Minimal external wiring and straightforward operation: measure positive/zero sequence impedance and capacitance with reduced wiring and improved on-site safety.
  • Large-capacity data storage and export: calendar-stamped storage for up to 200 test sets and USB export for PC viewing and report generation.
  • Operational safety: automatic grounding detection that blocks operation if grounding is insufficient.
  • Large full-touch LCD: menu-driven interface for guided, one-touch measurement operations.


Technical specifications

  • Operating conditions: -20℃ ～ 50℃; relative humidity < 80%.
  • Anti-interference principle: frequency conversion with digital filtering.
  • Power supply: AC 220 V ± 10%; recommended generator ≥ 3 kW for generator-powered tests.
  • Maximum output voltage: AC 250 V.
  • Voltage accuracy: 0.5%.
  • Current accuracy: 0.5%.
  • Maximum output current: 8 A.
  • Output frequency: 45 Hz, 55 Hz.
  • Measuring ranges: capacitance 0.01 ~ 30 μF; impedance 0.01 ~ 400 Ω; impedance angle -90° ～ +90°.
  • Measurement resolution: capacitance 0.0001 μF; impedance 0.0001 Ω; impedance angle 0.0001°.
  • Measurement accuracy — capacitance: ≥ 1 μF: ±1% reading ±0.01 μF; < 1 μF: ±2% reading ±0.01 μF.
  • Measurement accuracy — resistance: ≥ 1 Ω: ±1% reading ±0.01 Ω; < 1 Ω: ±2% reading ±0.01 Ω.
  • Impedance angle accuracy: ±0.2° (voltage > 1.0 V); ±0.3° (voltage 0.2 V ～ 1.0 V).
  • Antijamming (anti-interference) current: 30 A.
  • Induced voltage tolerance: 10 kV.
  • Installation dimensions (L × W × H): 550 × 430 × 530 mm.
  • Memory: stores 200 sets; supports USB flash drive data export.
  • Weight: 60 kg.
  • Also referred to as: Cable Parameter Tester; Cable Tester.


Usage notes & delivery

  • Data export via USB for PC analysis and report generation; product gallery provides high-resolution images and multiple views.
  • For generator-supplied testing, use a generator ≥ 3 kW and verify supply stability before measurement.
  • Always perform grounding check before operation; the instrument will block operation if grounding is inadequate to protect personnel and equipment.

Catalogs

Go to the Wuhan UHV Power Technology Co.,Ltd. website for more information

Other Wuhan UHV Power Technology Co.,Ltd. products

Cable Tester

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.