Multi-Pulse Cable Fault Test System
Product Overview
The MOEORW-W6000K complete system is a professional integrated testing solution independently developed by Wuhan Moen Intelligent Electric Co., Ltd., tailored for power cable inspection, path tracing, cable identification and full-range fault diagnosis.
This full set is composed of three core devices: MOEORW-W6000K Multi-Pulse Cable Fault Test System, MOEORW-W6000K-L Cable Path Identifier and MOEORW-W6000K-Q High Voltage Bridge. It covers the whole working process including underground pipeline survey, cable screening, high-resistance fault burning, fault pre-location and precise pinpointing.
Equipped with digital sampling, multi-pulse reflection, high-voltage constant current and automatic impedance matching technologies, the system delivers outstanding anti-interference performance and high testing precision. All components comply with international electrical safety and electromagnetic compatibility standards. The modular portable design adapts to various field environments, and it is widely applied in power grid operation, municipal engineering, railway transit, airport facilities and industrial power distribution fields.
Working Principle
1. MOEORW-W6000K-L Cable Path Identifier
The transmitter outputs adjustable pulse signals and couples signals to cables or metal pipelines through direct connection, clamp coupling or induction mode. The receiver captures electromagnetic field signals via built-in 3D shielding antennas or external flexible clamps. By analyzing signal amplitude, phase and current direction, the instrument realizes pipeline path tracking and buried depth measurement. It also supports non-contact cable identification to distinguish target cables from multiple lines. The optional A-frame adopts the step voltage method to locate cable and pipeline grounding faults accurately.
2. MOEORW-W6000K-Q High Voltage Bridge
The built-in high-voltage burn-out unit outputs continuous adjustable high voltage to convert unstable high-resistance faults into stable low-resistance faults. The intelligent bridge applies the four-terminal measurement principle to eliminate the interference caused by test lead resistance. It calculates fault distance according to the proportional relation between cable conductor resistance and physical length, and provides three testing methods to adapt to different cable types and wiring conditions.
3. MOEORW-W6000K Multi-Pulse Cable Fault Test System
Based on Time Domain Reflectometry (TDR) and exclusive multiple pulse conversion technology, this system converts complicated high-resistance flashover waveforms into standard short-circuit pulse waveforms. After high-voltage impact breaks down the fault point, multiple groups of low-voltage test pulses are transmitted. The system calculates fault distance by combining pulse round-trip time and cable wave velocity. The matched sound-magnetic locator is used for final precise pinpointing of fault points.
Technical Specifications
1. MOEORW-W6000K-L Cable Path Identifier
| Parameter | Specification |
| Core Functions | Pipeline tracing, depth measurement, cable identification |
| Power Supply | 7.4V DC, 6400mAh rechargeable lithium battery |
| Receiving Frequencies | Active: 10 optional frequenciesPassive power frequency: 50Hz, 60Hz |
| Detection Response Modes | Wide peak, narrow peak, null mode |
| Display Modes | Classic positioning, full-screen signal, signal curve |
| Positioning Accuracy | ±5% (Burial depth: 0~3m); ±15% (Burial depth: 3~20m) |
| Cable Identification | Supports 1~10 cables calibration; Valid current range: 75% ~ 135% of calibrated value |
| Display | 3.5-inch color LCD screen |
| Net Weight | 1.90 kg |
| Withstand Voltage | AC 2000V/rms |
| Operating Temperature | -10℃ ~ 40℃ |
| Relative Humidity | ≤80% RH |
| Safety Standard | IEC61010-1 CAT Ⅲ 600V |
Transmitter
| Parameter | Specification |
| Core Functions | Pulse signal output for tracing and identification |
| Power Supply | 11.1V DC, 12800mAh rechargeable lithium battery |
| Output Frequencies | 10 selectable pulse frequencies |
| Max Output Power | 10W (10 adjustable gears) |
| Max Direct Output Voltage | 150Vpp |
| Output Modes | Direct connection, clamp coupling, induction |
| Circuit Protection | Overload protection, short-circuit protection, automatic impedance matching |
| Display | 5.6-inch capacitive touch LCD screen |
| Main Unit Weight | 3.85 kg |
| Transmitting Clamp | Inner diameter Φ150mm, cable length 3m, weight 1.12 kg |
| Withstand Voltage | AC 3700V/rms |
| Safety Standard | IEC61010-1 (CAT Ⅲ 300V, CAT Ⅳ 150V) |
MOEORW-W6000K-Q High Voltage Bridge
| Parameter | Burn-out Function | Bridge Function |
| Output Voltage Range | 0 ~ 60kV (Continuously adjustable) | 0 ~ 3kV |
| Short-circuit Current | Approximately 600mA | Approximately 600mA |
| Positioning Accuracy | - | ±(0.2%·L + 1) m |
| Maximum Test Length | - | 1 ~ 50000 m |
| Display | 128×64 LCD screen | 128×64 LCD screen |
| Power Input | 220V AC, 50Hz, 1kVA | 220V AC, 50Hz, 1kVA |
| Weight | Main body: 35.7 kg; Accessories: 7.5 kg | Main body: 35.7 kg; Accessories: 7.5 kg |
| Operating Temperature | -10℃ ~ +55℃ | -10℃ ~ +55℃ |
| Storage Temperature | -20℃ ~ +70℃ | -20℃ ~ +70℃ |
MOEORW-W6000K Multi-Pulse Cable Fault Test System
| Parameter | Specification |
| Applicable Objects | 35kV and below power cables, railway & airport signal cables, street light cables |
| Test Methods | Low voltage pulse, multiple pulse, impulse current flashover, direct flashover |
| Maximum Test Distance | 100 km |
| Blind Zone | 0 ~ 5 m (Blind-free available) |
| Overall Test Error | Less than ±1% |
| Pinpoint Error | ≤ ±0.2 m |
| Sampling Frequencies | 3.125MHz ~ 250MHz (8 optional gears) |
| Pulse Width | 50ns ~ 10μs (Auto-adaptive) |
| Host Display | 12.1-inch industrial touch screen (Win7 system) |
| Power Supply | AC 220V / DC 12V, Continuous operation ≥ 6 hours |
| Host Weight | 6.2 kg |
| Operating Temperature | -20℃ ~ +40℃ |
| Relative Humidity | ≤80% RH |
Main Features
1. Full-process Cable Testing Capability
This integrated system realizes one-stop operation including pipeline pre-inspection, cable sorting, high-resistance fault conditioning, fault pre-location and accurate pinpointing. It covers open circuit, short circuit, low resistance, high resistance leakage and flashover faults, meeting all conventional testing demands for power cables.
2. Excellent Anti-interference & High Precision
All devices adopt full digital sampling and multi-filter technologies to suppress power frequency interference and harmonic noise effectively. The multiple pulse technology converts complex high-resistance waveforms into easy-to-identify standard waveforms, lowering operational difficulty. The four-terminal measurement design of the high voltage bridge eliminates lead resistance error and ensures reliable positioning data.
3. Diverse Working Modes & Strong Compatibility
The cable path identifier supports three signal output modes, adapting to live cables, de-energized cables and pipelines without exposed terminals.The high voltage bridge provides bridge method, section method and intelligent voltage method, which are applicable to cables with different materials, cross-sections and laying forms.The fault tester offers multiple testing modes to cope with various fault types of different voltage-level cables.
4. Portable & Humanized Design
Each unit adopts a modular split structure, easy to carry for outdoor mobile operation. Large-size touch screens are equipped on main devices with visualized operation interfaces and waveform display. Built-in large-capacity lithium batteries support long-duration field work.
5. Intelligent Data Management
The system supports automatic waveform and data storage, as well as test report generation. Users can export, playback and archive data conveniently, which satisfies project acceptance and data traceability requirements. The cable identifier supports batch calibration for up to 10 cables to improve field efficiency.
6. Complete Safety Protection
All products comply with international high-voltage safety regulations. Overvoltage, overcurrent, short-circuit protection and automatic discharge functions are integrated into high-voltage modules. Clear safety warnings and insulated structures guarantee personal and equipment safety during operation.
Standard Accessories
1. MOEORW-W6000K-L Cable Path Identifier
√ Receiver × 1· Transmitter × 1· Transmitting current clamp × 1· Flexible receiving clamp × 1· 3m red & black test leads × 1 set· Dedicated DC chargers × 2
2. MOEORW-W6000K-Q High Voltage Bridge
√ Main unit × 1· 5m four-core test cable (Optional: 15m / 50m) × 1· Short-circuit wire, grounding rod, discharge rod × 1 set· Bridge calibration box × 1
3. MOEORW-W6000K Multi-Pulse Cable Fault Test System
√ Test host × 1· Multi-pulse signal coupler × 1· Integrated high-voltage power unit × 1· Sound-magnetic pinpoint locator × 1· Current sampler, connecting cables × 1 set· Probes for different ground surfaces × 1 set· Dedicated chargers × 1 set
Universal Accessories
√ Full set of operation manuals × 1· Product inspection certificate × 1· Protective carrying cases × multiple
Optional Accessories
√ A-frame (for cable & pipeline grounding fault location)· Cable identification stethoscope· Extended high-voltage test cables· Remote technical service module
Application Fields
√ Power Utilities: Routine maintenance, fault troubleshooting and acceptance tests for underground and overhead power cables.· Municipal Engineering: Pre-construction pipeline exploration and daily maintenance of urban power and communication pipelines.· Railway & Airport: Path tracing and fault detection of special signal cables and power cables.· Industrial Parks: Inspection and fault diagnosis of internal power distribution cables.
Execution Standards
√ DL/T849.1~DL/T849.3: General technical conditions for special electrical test instruments· IEC61010-1: Safety requirements for electrical measuring and control equipment· IEC61010-031: Safety standard for handheld test probes· IEC61326: Electromagnetic compatibility standard for electrical equipment
Daily Maintenance
Pre-operation Inspection
- Check the insulation layer of test leads, clamps and high-voltage cables. Stop using the device if insulation is damaged or metal is exposed. Ensure reliable connection of all grounding points.
Storage Requirements
- Store equipment in dry and ventilated environments. Avoid long-term exposure to high temperature, direct sunlight and condensation.
Battery Maintenance
- Charge the device timely when low-voltage alarm appears. For long-term storage, charge lithium batteries every 3 months to prevent capacity attenuation.
Regular Cleaning
- Remove dirt and rust on clamp jaws, probes and grounding terminals regularly. Keep screens and interfaces clean and dry.
High-voltage Operation Rules
- After high-voltage testing, use a discharge rod to fully discharge the equipment before removing wiring. Do not disassemble high-voltage components without authorization.
Calibration
- Conduct regular functional calibration with the matched calibration box. All maintenance and calibration work must be performed by professional personnel.
FAQ
Q: The high voltage bridge cannot boost voltage normally?
A: Check if the high-voltage reset button is popped out, the regulating knob returns to zero, and the output selector is locked. Reconnect all wiring and retry.
Q: Signal is unstable during clamp coupling testing?
A: Ensure the cable sheath is well grounded at both ends. Clean foreign objects on clamp jaws and keep the jaws fully closed. Keep the receiver more than 5 meters away from the transmitter.
Q: Multiple cables are identified as target cables?
A: Clear historical calibration data and re-calibrate. Verify clamp direction, test frequency and output power are consistent with calibration parameters.
Q: Large deviation occurs in depth measurement?
A: Avoid measuring near cable bends and tee joints. Adopt manual measuring methods for re-verification.
Q: The multi-pulse system fails to collect effective flashover waveforms?
A: Appropriately increase high-voltage output and adjust delay coefficient. Ensure the fault point can produce stable flashover discharge.
Q: Device cannot power on?
A: Check battery level and charger connection. Fully charge the battery or replace the charger.
Q: Touch screen has no response?
A: Restart the device. If the problem persists, contact professional after-sales personnel for inspection.
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