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Medium and Low Voltage Underground Cable Fault Location System Pipeline Detector

Name: Medium and Low Voltage Underground Cable Fault Location System Pipeline Detector
Brand: Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
SKU: 535-4TS+502A+503C+507C
Price: 15500 USD
Availability: InStock

Product Details:

Place of Origin:	China
Brand Name:	XZH TEST
Certification:	CE ISO
Model Number:	535-4TS+502A+503C+507C

Detail Information

Place of Origin:

China

Brand Name:

XZH TEST

Certification:

CE ISO

Model Number:

535-4TS+502A+503C+507C

Product Name:

Medium And Low Voltage Cable Fault Location System

Color:

Black+Red

Function:

Cable Fault Precision Pointing

Highlight:

High Light

Highlight:

medium voltage cable fault locator

underground cable pipeline detector

HV pulse generator for cables

Trading Information

Minimum Order Quantity:

1 Set

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 Medium and Low Voltage Underground Cable Fault Location System (Model 535-4TS+502A+503C+507C) is a comprehensive 5-part diagnostic solution for underground power cable networks. Integrating a 2048J high-voltage surge generator, a multi-pulse TDR cable fault pre-locator, an acoustic-magnetic precision pinpointer, and a multi-frequency cable pipeline comprehensive tester with dedicated test leads, this all-in-one system covers the complete fault-location workflow — from pre-location through route tracing to centimeter-accurate pinpointing. Designed for utility crews, electrical contractors, and industrial maintenance teams, the system delivers 0.07 m pre-location resolution and 0.1 m final pinpointing accuracy across cable lengths exceeding 120 km, making it the ideal field solution for medium and low voltage cable networks.

System Configuration

No.	Item	Model	Key Capability
1	High Voltage Surge Generator	XHHV535-4TS	0–32 kV 3-gear, 2048 J, auto/manual surge, burn current
2	Multi-Pulse Cable Fault Locator	XHGG502A	400 MHz TDR, multi-pulse ARC, ≥120 km, 0.07 m resolution
3	Cable Fault Pinpointer	XHDD503C	Acoustic-magnetic sync, 0.1 m accuracy, IP65
4	Cable Pipeline Comprehensive Tester	XHGX507C	Path tracing, depth/ID, 4 frequencies + passive, 10 m depth
5	Test Cables	—	HV output cable + ground cable, shielded, high-voltage rated

System Components

1. XHHV535-4TS — High Voltage Surge Generator

2048J Multi-Voltage Impulse Energy Source

The powerhouse of the fault location system. Delivers up to 2048 Joules of surge energy with three switchable voltage levels (8 kV / 16 kV / 32 kV) via a 3-speed capacitor bank (64 μF/8 kV, 16 μF/16 kV, 4 μF/32 kV). Supports DC, single trigger, and automatic cycle operating modes with approximately 4-second auto-surge timing and manual override. Features continuous burn current for fault conditioning, zero-start safety interlock, real-time high-voltage side metering, automatic internal discharge after operation, and over-voltage/over-current/overheating protection. Functions as both a surge generator for fault pinpointing and a DC withstand voltage tester.

Output Voltage: 0–8 kV / 0–16 kV / 0–32 kV (3-gear switchable)
Discharge Energy: 2,048 J | Inside Capacitor: 4 μF/32 kV, 16 μF/16 kV, 64 μF/8 kV
Surge Time: Auto ~4 s, manual controllable | Surge Power: 2 KVA
Burn Current: 60 mA @ 32 kV | HV Side Current: 0–60 mA
Safety: Zero-start interlock, auto-discharge, over-voltage/current/temp protection
Weight: ≤120 kg | Power: AC 220 V ±15%, 50 Hz ±2 Hz

2. XHGG502A — Multi-Pulse Cable Fault Pre-Locator

400 MHz TDR with Advanced ARC Multi-Pulse Technology

Professional Time Domain Reflectometer for rapid initial fault distance measurement. Supports low-voltage pulse (TDR), impulse current (ICE), and patented multiple-pulse ARC reflection methods to handle all cable insulation fault types. With 400 MHz maximum sampling, 300 V pulse amplitude, and ten selectable measurement ranges from 100 m to 100 km, it delivers 0.07 m minimum resolution with measurement error ≤±(0.5%×L+1 m). Features fully automatic continuous sampling with waveform capture, automatic range setting, automatic waveform analysis, and USB communication for PC waveform management and archiving.

Sampling Frequency: 1 MHz – 400 MHz
Ranging Range: ≥120 km (10 selectable ranges)
Minimum Resolution: 0.07 m | Blind Zone: ≤10 m
Pulse Amplitude: 300 V ±15%
Test Modes: TDR (LV pulse), ICE (impulse current), ARM (multi-pulse ARC)
Pulse Width: 0.15 / 0.30 / 0.60 / 1.20 / 2.4 / 5.0 / 7.5 / 10 μS

3. XHDD503C — Cable Fault Pinpointer

Acoustic-Magnetic Synchronization — 0.1 m Precision

Professional digital pinpointer using acoustic-magnetic synchronization for precise fault localization. When the surge generator applies HV impulses, the acoustic (thumping) and electromagnetic signals propagate from the fault point at different speeds. The pinpointer captures both via its IP65-rated multi-layer isolated sensor, calculates the time difference in real time, and displays four simultaneous acoustic-magnetic readings on its 5-inch sunlight-visible touch LCD. Features BNR background noise reduction, mute noise reduction, four selectable filter modes, and path deviation indication for comprehensive field navigation.

Positioning Accuracy: 0.1 m (fixed point & path)
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) | Dynamic Range: 0–112 dB (16 gears)
Display: 5-inch TFT ultra-bright 800×480 true color
Battery: 4×18650 lithium, >8 h standby
Waterproof: IP65 | Weight: 6.5 kg (428L×350W×230H mm)

4. XHGX507C — Cable Pipeline Comprehensive Tester

Path Tracing, Depth Measurement & Cable Identification

Multi-frequency electromagnetic transmitter-receiver system for underground cable and pipeline route tracing, depth measurement, current measurement, and cable identification. The transmitter injects a stable sinusoidal signal via direct connection, coupling (clamp), or induction. The receiver provides bar-graph, arrow, and voice prompts for intuitive one-person operation. Supports four active frequencies plus passive 50 Hz detection, four antenna modes, and built-in ohmmeter for loop resistance measurement. Includes A-frame for step-voltage ground-fault detection up to 2 MΩ to ground.

Active Frequencies: 815 Hz, 8 kHz, 33 kHz, 83 kHz + Passive 50 Hz
Detection Depth: ≥10 m | Max Distance: 15 km (direct connection)
Antenna Modes: Valley (zero), Crest (peak), Step voltage, Clamp current (A-frame)
Gain Control: Manual, 100 dB dynamic range
Battery: Rechargeable, continuous >8 h, intermittent >16 h
Coupling Clamp: Φ150 mm inner diameter

Complete System Specifications

Parameter	Specification
System Model	XHHV535-4TS + XHGG502A + XHDD503C + XHGX507C
TDR Sampling Frequency	1 MHz – 400 MHz
Pre-Location Range	≥120 km
Pre-Location Resolution	0.07 m (blind zone ≤10 m)
Pinpointing Accuracy	0.1 m (fixed point & path)
Pipeline Detection Depth	≥10 m
Surge Voltage	0–8 kV / 0–16 kV / 0–32 kV
Discharge Energy	2,048 J
Test Cable Kit	50 kV DC rated HV cable (10 m) + shielded ground cable (10 m)
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 (high/low resistance, open/short circuit, flashover). This determines the optimal test method for pre-location.
Fault Pre-Location (XHGG502A)Connect the TDR pre-locator. Use LV pulse for low-resistance/open faults or multi-pulse ARC for high-resistance/flashover faults. Automatic waveform capture identifies fault distance within seconds.
Route Tracing & Cable Identification (XHGX507C)Deploy the pipeline comprehensive tester to trace the exact cable path, measure burial depth, and positively identify the target cable among multiple circuits. Mark the route on the ground surface.
Surge Impulse Generation (XHHV535-4TS)Apply periodic high-voltage surges at the selected voltage level. The automatic ~4-second cycle creates consistent acoustic and electromagnetic signals at the fault point for pinpointing.
Precise Pinpointing (XHDD503C)Walk the 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 are compatible with this system?

The XZH TEST 535-4TS+502A+503C+507C system is designed for medium and low voltage underground power cables. It handles all common insulation types (XLPE, PILC, EPR) and fault categories — low-resistance, short-circuit, open-circuit, high-resistance leakage, and flashover faults. The 3-gear surge voltage (8/16/32 kV) allows operators to match impulse energy to the cable's voltage rating for safe, effective fault conditioning without risking insulation damage on lower-voltage circuits.

Q2: What is the advantage of the multi-pulse ARC method over conventional TDR?

The XHGG502A's multi-pulse ARC reflection method acquires multiple waveform sets per single HV impulse, effectively eliminating cosine oscillation interference that plagues conventional secondary-pulse techniques. This provides clean, unambiguous fault reflections regardless of cable length, fault distance, or oscillation period — particularly critical for high-resistance and water-ingress faults where standard TDR produces weak or no usable reflections.

Q3: Can one operator manage the complete fault location workflow?

Yes. The system is engineered for efficient field deployment. The pre-locator features a touch-screen interface with automatic waveform analysis. The comprehensive tester provides bar-graph, arrow, and voice guidance for solo cable tracing and depth measurement. The pinpointer weighs only 6.5 kg with >8-hour battery life. For safety during high-voltage operations, a two-person crew is recommended per standard utility protocols, but each individual component is designed for single-operator use.

Q4: What test cables and accessories are included?

The system includes a complete test cable kit: a shielded 50 kV DC-rated high-voltage output cable (core 2.5 mm² red, outer diameter 14 mm, 10 m length) with large spool for safe HV discharge connections, and a 3-column grounding cable set (main core 16 mm², branch conductors 2.5 mm², 10 m length) with small spool. All necessary connection adapters, coupling clamp (Φ150 mm), A-frame for step-voltage detection, chargers, and user manuals are included.

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

Standard delivery is 5–8 working days after order confirmation. Each component is individually 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 both individual purchases and large-scale procurement programs.

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:

Medium and Low Voltage Underground Cable Fault Location System Pipeline Detector

High Light

Highlight:

medium voltage cable fault locator

underground cable pipeline detector

HV pulse generator for cables

1. XHHV535-4TS — High Voltage Surge Generator

2. XHGG502A — Multi-Pulse Cable Fault Pre-Locator

3. XHDD503C — Cable Fault Pinpointer

4. XHGX507C — Cable Pipeline Comprehensive Tester

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