Dielectric flaw detector UHV-550

for overhead lineshand-helddata analysis

This wireless insulator voltage distribution detector UHV-550 is intended for on-line (live) testing of suspension insulators and for laboratory suspension insulator tests. The universal-joint design allows flexible alignment of the measuring direction to match the suspension orientation of the insulator string.

Product overview

• Wireless detector for measuring voltage distribution on suspension insulators; suitable for field and laboratory use.
• Universal-joint mounting enables flexible adjustment of measurement direction according to insulator-string suspension position.
• Double shielding and EMC-compliant anti-interference design for stable readings; intuitive human–machine interface for straightforward operation.

Key features

• Applicable across multiple operating voltage levels; special voltage ranges can be customized (typical table range shown).
• Date and time settings for recording and reviewing historical measurements.
• Backlight time configurable: continuous on, off, or adjustable 0–999 minutes.
• Automatic shutdown configurable: never or adjustable 0–999 minutes.
• Visual transmission distance between detector and handheld unit: up to 100 m (line of sight, with sufficient power).
• Multi-mode operation for broader applicability, improved safety and convenience.
• Universal-joint for flexible measurement-direction adjustment.
• Double shielding for enhanced anti-interference performance.
• User-friendly human–machine interface for easy operation.

Technical specifications

• Measuring voltage range (standard/table): 0 ~ 40 kV (special/custom voltages available); select models/configurations may support up to 0 ~ 1000 kV.
• Measurement error: ≤ ±1%.
• Resolution: 0.01 kV.
• Sampling rate: 10 samples/second.
• Operating current: ≤ 120 mA (handheld), ≤ 40 mA (detector).
• Power supply: handheld — 2 × 1.5 V (size No.5/AA); detector — 2 × 1.5 V (size No.7/AAA).
• Continuous operating time: ≥ 12 hours.
• Visual transmission distance (detector ↔ handheld): ≤ 100 m (with sufficient power).
• Display: positive LCD, legible in sunlight.
• Operating temperature: -35 °C to +60 °C.
• Storage temperature: -40 °C to +65 °C.
• Relative humidity: ≤ 90% RH, no condensation.
• Aliases: Insulator Voltage Distribution Detector; Voltage Distribution Detector.