XZH Test XHHV535-4TSB Underground Cable Fault Location System with Multiple Pulse Method (35kV)

General features

Portable cable fault location system

Graphical interface: Graphical interface, more intuitive and easy to operate.

Operation: Turn and click a single knob (jog dial) on the control unit

Data management: General database

Data synchronization: Universal Serial Bus

Control unit

Display: Industrial grade TFT color panel with LED backlight

Anti-glare: Yes

Multi-touch: Yes

LCD size: 10”

Aspect ratio: 16:9

Resolution: 1024×768 Full HD

Brightness: 450 cd/m²

Safety

Adaptability: CE Compliance; EN 61010, EN 50191, VDE 0104, VDE 015, DGUV 203-034 (BGI 891)

Discharge and grounding devices: 72kJ, equivalent to 10µF capacitor charged to 120kV DC; discharge time constant <1s

System status: Real-time monitoring and indication

Intrinsically safe: Ground immediately when there is a power outage

F-U safety interlock: Operating voltage connection monitoring (high voltage circuit)

F-Ohm safety interlock: Operational earth connection monitoring (high voltage circuit)

Security features: Front panel – power on/off, lockout switch, emergency stop, residual pressure indicator, high voltage switch; Control unit – jog dial

Safety devices: System grounding status indicator, power input protection, high voltage room monitoring via door contact, external safety device

Power input monitoring: Overvoltage protection, undervoltage protection, RCD protection

Defining wiring: Internal switchboard included

System function

Use DC or high-voltage pulse to make the cable fault point flash over and discharge.

Use traveling wave reflection principle to measure the distance of insulation faults.

I. High voltage surge generator

Output mode: DC, Single, Cycle

Output voltage: 8kV, 16kV, 32kV

Built-in capacitor: 64µF, 16µF, 4µF

Discharge energy: 2048J per voltage level

Impact power: 2000VA

Impulse rate: Auto ~6s, manual control optional

Surge voltage level switch: Manual

Voltage adjustment type: Continuous

Indication: Real-time voltage/current display on HV side

Operating mode switch: Manual

Coupler: Built-in multiple pulse sampling box

Safe protection: Zero-start protection, safe and reliable

Discharge: Auto discharge of internal capacitance when stopped

Working power: AC220V±15%, 50Hz±2Hz(60Hz)

DC withstand voltage test: Output adjustable 0–32kV, current range 0–20A

Burn current: 60mA@32kV, 120mA@16kV, 240mA@8kV

Safety: Over-voltage, over-current, overheating protection; auto discharge after use

Protection rating: ≥IP54

Dimensions (mm): 534L×444W×805H

Weight: ≤130kg

II. TDR cable fault locator

Test method: Low voltage pulse, Impulse current, Impulse voltage, ARC multiple pulse

Sampling rate: 1MHz–400MHz

Pulse output: Unipolar

Pulse amplitude: 300V

Pulse width: 0.15μs, 0.30μs, 0.60μs, 1.20μs, 2.4μs, 5.0μs, 7.5μs, 10μs

Measurement scope: ≥120km

Measurement range: 100m, 300m, 500m, 1km, 3km, 5km, 10km, 25km, 50km, 100km

Minimum resolution: 0.07m

Measurement error: ≤±(0.5%×L+1m), L = cable length

Signal gain: 0–100%, adjustable

Propagation speed: 10–999.9m/μs

Output impedance: Auto matching

Trigger: Auto continuous

Result analysis: Automatic fault distance calculation

Working conditions: Temperature -25°C~+65°C; Humidity ≤85%; Pressure 750±30mmHg

V. Test cables

High voltage output cable: Core 2.5mm² red, withstand 50kV DC, shielded, outer diameter 14mm, customizable length, supplied with large reel.

Ground cable: 3-core grounding line, main core 16mm² transparent, branch 2.5mm², customizable length, supplied with small reel.