Partial discharge tester UHVCW

Overview
The instrument is designed for on-site installation and testing while the equipment under test remains in operation. It uses a high-speed A/D conversion circuit to digitize signals; detection reliability is secured by digital signal processing, adaptive filtering and interference suppression methods.

Product parameters
The UHVCW inflatable non-partial-discharge combined high-voltage test set is intended for insulation withstand voltage testing, partial discharge measurement and precision testing of GIS and GIL power equipment with high voltage and large capacity. It is suitable for preventive field tests and factory acceptance tests of GIS substations, GIS/GIL manufacturers, bushing and insulation component producers.

Technical parameters

• Voltage levels: 100 kV, 200 kV, 250 kV, 300 kV, 500 kV, 800 kV, 1000 kV
• Capacity: 50–2000 kVA
• High-voltage generation: HV transformer boosting and series resonance (power frequency or frequency-conversion); single-stage boosting (no series boosting required)
• Input voltage (primary): 0.35–10 kV
• Partial discharge capability: 1–3 pC under rated voltage (normal environment)
• Temperature rise: ≤65 K after 60 minutes at rated current (50 Hz)

Features

• Vehicle-mounted hydraulic lift for easy mobility and convenient on-site deployment.
• High voltage fully sealed in a shielded enclosure to ensure safe, reliable testing.
• System partial discharge level controllable within 1–3 pC.
• Compact design for reduced footprint and lighter components.
• Integrated high-voltage isolation switch enabling multi-function operation in a single unit.
• Direct connection to the test object simplifies setup and reduces test time.
• Robust mechanical design suitable for long-distance transport.
• Lowered system power supply requirements.

Transportation and storage
Transportation

• Use instrument wooden packing boxes and shock absorbers for transport to prevent damage.
• If not packed in wooden boxes, avoid stacking and impact; when boxed, maximum two stacking layers are allowed.
• During transport, position the control panel facing upwards.

Storage

• Store indoors in a dry, dust-free, ventilated area free of corrosive gases; do not stack without wooden box packaging.
• Place the panel facing upwards and use moisture-proof materials under the equipment to prevent dampness.

Technical characteristics

• Voltage levels: 100 kV, 200 kV, 250 kV, 300 kV, 500 kV, 800 kV, 1000 kV
• Capacity range: 50–2000 kVA
• High-voltage generation method: transformer boosting and series resonance (power frequency / frequency conversion), single-stage boosting
• Primary input voltage: 0.35–10 kV
• Partial discharge sensitivity: 1–3 pC at rated voltage (normal conditions)
• Maximum temperature rise: ≤65 K after 60 min at rated current (50 Hz)