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35kV and Below Portable Cable Fault Location System for Power Cables

Name: 35kV and Below Portable Cable Fault Location System for Power Cables
Brand: Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
SKU: XHHV535-4TSB+XHDD503E
Price: 15500 USD
Availability: InStock

Product Details:

Place of Origin:	China
Brand Name:	XZH TEST
Certification:	CE ISO
Model Number:	XHHV535-4TSB+XHDD503E

Detail Information

Place of Origin:

China

Brand Name:

XZH TEST

Certification:

CE ISO

Model Number:

XHHV535-4TSB+XHDD503E

Product Name:

Cable Fault Location Set

Impulse Voltage:

0-35kV

High Pressure Partial Pressure:

2.5

Discharge Power:

2048 J

Impact Power:

2000W

Power:

Electronic

Highlight:

High Light

Highlight:

35kV portable cable fault locator

power cable insulation fault detector

portable cable fault location system

Trading Information

Minimum Order Quantity:

1set

Price:

Negotiable

Packaging Details:

wooden packaging

Delivery Time:

5-8 work days

Payment Terms:

T/T

Supply Ability:

2000group/year

Product Description

Product Overview

The XZH TEST 35kV and Below Portable Cable Fault Location System (Model XHHV535-4TSB + XHDD503E) is a fully integrated diagnostic solution engineered for power cable networks operating at voltage levels up to 35 kV. The system combines a 400 MHz TDR cable fault pre-locator with an advanced acoustic-magnetic synchronization pinpointer and a 2048J high-voltage pulse generator into a coordinated field platform. Designed for utility maintenance crews, electrical contractors, and industrial service teams, it covers the complete fault-location workflow — from insulation testing and pre-location through precise pinpointing to post-repair verification — delivering 0.07 m pre-location resolution and ≤0.1 m final pinpointing accuracy across cable lengths of 120 km and beyond.

System Configuration

Product Name	Model	Qty	Key Capability
Cable Fault Pre-Locator	XHHV535-4TSB Built-in	1	400 MHz TDR + touch-screen controller, ≥120 km range, built-in 10.4 Ah Li-ion battery
High Voltage Pulse Generator	XHHV535-4TSB	1	0–32 kV 3-gear, 2048 J surge energy, auto/manual surge, ≤120 kg
Cable Fault Pinpointer	XHDD503E	1	Acoustic-magnetic sync, ≤0.1 m accuracy, 16-level gain, IP-rated

System Components

1. XHHV535-4TSB — Cable Fault Pre-Locator + HV Pulse Generator

Integrated TDR Controller & 2048J Surge Energy Source

The core control unit integrates a 400 MHz TDR cable fault pre-locator with an embedded 3-gear high-voltage pulse generator in a single portable package. The pre-locator features a touch-screen interface, single-chip microcontroller centralized control, and a built-in 10.4 Ah lithium battery delivering 5 hours of field operation. An independent isolated power supply system prevents interference during impulse discharge. The integrated HV pulse generator delivers 0–2048 J across three switchable voltage levels (8 kV / 16 kV / 32 kV) with automatic 4-second surge cycling and manual override. Suitable for low-resistance, short-circuit, open-circuit, high-resistance leakage, and flashover faults on all cable types up to 35 kV.

Sampling Frequency: 1 MHz – 400 MHz
Ranging Range: ≥120 km (10 selectable ranges)
Minimum Resolution: 0.07 m | Blind Zone: ≤10 m
Surge Voltage: 0–8 kV / 0–16 kV / 0–32 kV (3-gear)
Discharge Energy: 2048 J | Surge Power: 2 KVA
Battery: 10.4 Ah Li-ion, ~2 h charge, 5 h runtime
Weight: ≤120 kg | Temperature: -20°C – +50°C

2. XHDD503E — Cable Fault Pinpointer

Acoustic-Magnetic Synchronization — ≤0.1 m Precision

Professional digital pinpointer using acoustic-magnetic synchronization for precise fault localization. When the HV pulse generator applies surge impulses, the fault point produces vibration waves, sound waves, and electromagnetic waves via flashover discharge. The dedicated probe captures these signals, and the host unit intelligently processes and displays the acoustic-magnetic time difference in real time. Featuring four selectable filter modes (all-pass, low-pass, high-pass, band-pass) and 16-level output gain (0–112 dB), it adapts to diverse field environments. The operator identifies the exact fault location — ≤0.1 m directly above the cable — through clear visual and audio guidance.

Positioning Accuracy: ≤0.1 m | Step Voltage: ≤0.5 m | Path: ≤0.5 m
Filter Modes: All-pass (100–1600 Hz), Low-pass (100–300 Hz), High-pass (160–1600 Hz), Band-pass (200–600 Hz)
Output Gain: 16 levels (0–112 dB) | Impedance: 350 Ω
Channel Adjustment: 8 levels each for sound, magnetic, and voltage
Battery: 4×18650 lithium, >8 h standby
Dimensions: 428L×350W×230H mm | Weight: 7 kg
Temperature: -25°C – +65°C | Humidity: ≤90%

Complete System Specifications

Parameter	Specification
System Model	XHHV535-4TSB + XHDD503E
TDR Sampling Frequency	1 MHz – 400 MHz
Pre-Location Range	≥120 km
Pre-Location Resolution	0.07 m (blind zone ≤10 m)
Measurement Error	≤±(0.5%×L+1 m)
Pinpointing Accuracy	≤0.1 m
Surge Voltage	0–8 kV / 0–16 kV / 0–32 kV (3-gear)
Discharge Energy	2,048 J (4 μF/32 kV, 16 μF/16 kV, 64 μF/8 kV)
Target Cable Voltage	35 kV and below power cables
Brand	XZH TEST
Origin	China
Certification	CE, ISO

Complete Fault Location Workflow

Cable Insulation Test & Fault CharacterizationPerform initial insulation resistance measurement to confirm fault presence and characterize fault type — low-resistance, high-resistance, short-circuit, open-circuit, or flashover.
Fault Pre-Location (XHHV535-4TSB TDR)Connect the integrated TDR pre-locator and select the optimal test method based on fault characteristics. Use LV pulse for low-resistance/open faults or HV flashover for high-resistance faults. Automatic waveform capture identifies fault distance within seconds across the ≥120 km range.
Surge Impulse Generation (XHHV535-4TSB HV Unit)Apply periodic high-voltage surges at the selected voltage level to create flashover discharge at the fault point. The automatic 4-second cycle ensures consistent acoustic and electromagnetic signal generation for the pinpointer.
Route Tracing & MarkingTrace the cable path on the ground surface using electromagnetic signal detection, and mark the route to guide the pinpointing phase. Measure burial depth at key waypoints for excavation planning.
Precise Pinpointing (XHDD503E)Walk the marked cable route with the acoustic-magnetic pinpointer. Monitor 4 simultaneous time-difference displays — the point where acoustic-magnetic time delay approaches zero is directly above the fault, within ≤0.1 m.
Cable Repair & VerificationExcavate precisely at the marked point, repair the cable, and verify service restoration with a final insulation test to confirm operational integrity.

Frequently Asked Questions

Q1: What cable types and voltage levels can this system test?

The XHHV535-4TSB system is designed for power cables rated 35 kV and below. It handles all common insulation types including XLPE, PILC, and EPR. The 3-gear surge voltage (8/16/32 kV) allows operators to match impulse energy to the cable's voltage class — lower voltage for distribution cables, maximum output for 35 kV transmission feeders — preventing insulation stress while ensuring reliable fault conditioning.

Q2: How does the XHDD503E achieve ≤0.1 m pinpointing accuracy?

The XHDD503E uses acoustic-magnetic synchronization — when the HV surge generator causes flashover at the fault point, acoustic (vibration/sound) and electromagnetic waves propagate outward at different speeds. The pinpointer's ground sensor captures both signals simultaneously. The host processes the time-difference data and displays 4 real-time readings. As the operator approaches directly above the fault, the time difference approaches zero. Combined with 16-level gain (0–112 dB) and 4 selectable filter modes, this method achieves ≤0.1 m accuracy even in noisy environments.

Q3: Is this system truly portable for field use?

Yes. The XHHV535-4TSB integrated unit weighs ≤120 kg with a compact form factor, making it transportable via light truck or van for mobile field crews. The pre-locator operates on a built-in 10.4 Ah lithium battery (5-hour runtime), so cable testing can begin immediately on arrival without needing mains power. The XHDD503E pinpointer weighs only 7 kg with 4×18650 lithium batteries (>8-hour standby), enabling extended ground survey work. The complete system can be set up and operational within minutes by a small crew.

Q4: What training and after-sales support are provided?

XZH TEST provides comprehensive English-language user manuals with every system. On-site commissioning and operator training can be arranged upon request. Remote technical support via email, video call, and phone is included. Our engineering team is available to assist with application-specific guidance, waveform interpretation, and troubleshooting to maximize your return on investment.

Q5: What are the delivery, packaging, and purchasing terms?

Standard delivery time is 5–8 working days after order confirmation. Each system component is packed in reinforced export-grade wooden cases with internal foam cushioning for secure international shipping. Minimum order quantity is 1 set, with T/T payment terms. Annual supply capacity is 2,000 sets, ensuring availability for individual purchases and large-scale procurement programs alike.

Packaging & Delivery

Item	Detail
Packaging	Reinforced wooden cases with internal foam cushioning
Delivery Time	5 – 8 working days
Supply Capacity	2,000 sets per year
Minimum Order Quantity	1 set
Payment Terms	T/T

Tags:

35kV and Below Portable Cable Fault Location System for Power Cables

High Light

Highlight:

35kV portable cable fault locator

power cable insulation fault detector

portable cable fault location system

1. XHHV535-4TSB — Cable Fault Pre-Locator + HV Pulse Generator

2. XHDD503E — Cable Fault Pinpointer

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