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quality Cable Fault Locator factory
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China Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. /Xian XZH Electric Power Technology Co., Ltd. Has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical measurement instrument, the product line covers a wide range of devices for testing various electrical area, such as underground cable fault locating system, power transformer test, AC/DC Hipot test, Insulation resistance test and so on. With rich measurement experiences of innovation combining and advanced technology to provide the most reliable electrical measurement. The design development production and Inspection is performed at the ISO 9001 and CE which gurantee a consistency of high quality products. XZH TEST masters a variety of technologies as well as extended service and support to deliver the highest value to our customers. We sincerely hold the tenet of "quality first, customers supreme, honor commitment trust worthy".Stays commitment R&D about electric power detection equipment and electric power automation, since its foundation, the company keeps living up to the belief of: "Create high-quality brand, casting first-class enterprise image". Also, we make the "steady development, the best quality "as the core concept of the enterprise. Our goal is to provide our customers with reliable test and measurement equipment that more safe and easy to use, we make measurement easier! Xi'an Xu & Hui Electromechanical Technology Co., Ltd expect to strengthen the relationship with world-wide cooperators, and warm-heartedly welcoming business partners to visit our factory for developing the OEM & ODM win-win Cooperation. Our Team Factory scene We have the ability to innovate new products and technologies. We can provide complete system solutions for your project. We provide online and offline practical and theoretical training. We provide instrument repair and calibration. Certification
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What equipment is actually required for a complete cable fault detection system? 2026-06-27 .gtr-container-xzh789 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 16px; box-sizing: border-box; overflow-x: hidden; } .gtr-container-xzh789 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; } .gtr-container-xzh789 a { color: #01EDC9; text-decoration: none; } .gtr-container-xzh789 a:hover { text-decoration: underline; } .gtr-container-xzh789 img { max-width: 100%; height: auto; display: block; margin: 1em 0; } .gtr-container-xzh789 .gtr-section-title { font-size: 18px; font-weight: bold; color: #01EDC9; margin-top: 2em; margin-bottom: 1em; text-align: left; } .gtr-container-xzh789 .gtr-component-item { margin-bottom: 2em; padding-bottom: 1.5em; border-bottom: 1px solid #eee; } .gtr-container-xzh789 .gtr-component-item:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; } .gtr-container-xzh789 .gtr-component-name { font-size: 18px; font-weight: bold; color: #01EDC9; margin-bottom: 0.5em; text-align: left; } .gtr-container-xzh789 ul, .gtr-container-xzh789 ol { margin: 1em 0; padding-left: 20px; list-style: none !important; } .gtr-container-xzh789 ol { counter-reset: list-item; } .gtr-container-xzh789 li { font-size: 14px; margin-bottom: 0.5em; position: relative; padding-left: 25px; text-align: left; list-style: none !important; } .gtr-container-xzh789 ul li::before { content: "•" !important; position: absolute !important; left: 0 !important; color: #01EDC9; font-size: 1.2em; line-height: 1; } .gtr-container-xzh789 ol li::before { counter-increment: none; content: counter(list-item) "." !important; position: absolute !important; left: 0 !important; color: #01EDC9; font-weight: bold; width: 20px; text-align: right; } @media (min-width: 768px) { .gtr-container-xzh789 { max-width: 960px; margin: 0 auto; padding: 24px; } .gtr-container-xzh789 p { margin-bottom: 1.2em; } .gtr-container-xzh789 .gtr-section-title { margin-top: 2.5em; margin-bottom: 1.2em; } .gtr-container-xzh789 .gtr-component-item { margin-bottom: 2.5em; padding-bottom: 2em; } .gtr-container-xzh789 .gtr-component-name { margin-bottom: 0.8em; } .gtr-container-xzh789 li { margin-bottom: 0.8em; } } A few days ago, a client asked me right off the bat: "How much does that pinpointing device of yours cost? Is it accurate at locating faults?"I replied, "Are you planning to buy *only* a pinpointing device?"The client was taken aback: "Yes, why? What else would I need?"In fact, that question itself reveals a common misconception: cable fault detection is never a job where "one single instrument does it all."Locating a cable fault is like solving a mystery; you can never uncover the truth by relying on just one clue.It requires a coordinated effort involving a full suite of equipment—including rough ranging, path tracing, breakdown generation, and pinpointing—to accurately lock onto the fault location.Today, using products from Xi'an Xuzhihui as examples, I’ll walk you through exactly what constitutes a complete cable fault detection system and the specific role each piece of equipment plays. The four core components—none can be dispensed with. XHGG502A Cable Fault Locator It features a 10.1-inch full-color touchscreen, a maximum sampling frequency of 400 MHz, and a ranging capability exceeding 120 km; it automatically analyzes waveforms to display the fault distance. It should be noted that "coarse ranging" cannot be performed directly; a high-voltage pulse generator must be used to apply high voltage and break down the fault point so that the main unit can capture a valid reflected waveform and determine the distance. This process first establishes the approximate location of the fault, narrowing the range down to within a few tens of meters—or even just a few meters. The first step of rough measurement tells you "roughly where it is." XHLJ504L  Cable Route Tracer Detects the alignment, path, and burial depth of underground cables. It utilizes the principle of electromagnetic induction and features high power output; it is not limited by cable length, can trace paths even in open-circuit conditions, and offers a detection depth exceeding 10 meters. Can't find the blueprints? First locate the path, then determine the points. XHHV535-4Z High Voltage Surge Generator It utilizes impulse discharge to break down the fault point. This process spans both the rough ranging and precise pinpointing stages: during rough ranging, it works with a cable fault tester to break down the fault and capture waveforms; during pinpointing, it works with a pinpointing device to induce repeated discharges at the fault, generating acoustic and magnetic signals. The unit integrates a DC high-voltage source, energy-storage capacitors, and a discharge spark gap into a single device weighing no more than 35 kg; it also supports DC withstand voltage testing, offering dual functionality. Use it for rough fault location via breakdown, and for pinpointing via acoustic signals—a single device handles the entire process. XHDD503C Cable Fault Pinpointer Utilizing the principle of acoustic-magnetic synchronization, the device simultaneously captures the acoustic and electromagnetic waves generated by the breakdown discharge at the fault site, calculating the precise location based on the time difference between the two signals. This process relies on a high-voltage pulse generator; since the pinpointing unit itself does not cause the fault to "emit sound," the generator must continuously apply high voltage to induce repeated discharges, allowing the unit to detect the acoustic and magnetic signals and achieve precise localization. With a positioning accuracy of ≤0.1 meters, the system employs a fully digital pinpointing probe combined with fifth-order superposition filtering technology to clearly capture discharge sounds, even in noisy environments. Refining the measurement from a rough estimate of tens of meters to a precision of 0.1 meters. Collaborative closed-loop Cable fault tester → Rough location (estimating the distance in meters) Cable path tracer → Path tracing (determining the route/direction) High-voltage pulse generator → Breakdown (inducing a discharge at the fault point) Cable fault pinpointing device → Pinpointing (locating the fault with 0.1-meter precision) All four instruments must work together to fully locate the fault point; the process chain breaks if any single unit is missing. In addition to the "Big Four," you might also need these pieces of equipment. Cable Identifier — Accurately locates the target cable among multiple cables. Cable Piercing Tool — Confirms whether a cable is live before cutting or maintenance, ensuring safety. Outer Sheath Fault Detector & Locator — Specifically designed to detect faults in cable outer sheaths. Burn-through Unit — Converts high-resistance faults into low-resistance ones to facilitate subsequent testing. Xu Zhi Hui can supply a complete range of equipment required for cable fault detection, including the items listed above.
XHDD503E+ Cable Fault Pinpoint Locator: Precision Acoustic-Magnetic Detection for Final-Step Fault Location 2026-06-18 XHDD503E+ Cable Fault Pinpoint Locator: The Critical Final Step in Cable Fault Detection In power cable maintenance operations, rapid and precise fault point location is the core requirement for service restoration. Among the complete cable fault detection workflow — which typically involves flashover testing, high-voltage impulse generation, path tracing, and pinpoint location — the final pinpointing step demands the highest level of precision and operator patience. The XHDD503E+ Cable Fault Pinpoint Locator is the latest-generation offering in the pinpoint locator product line, delivering substantial improvements in intelligent processing, noise suppression, and operational convenience. Understanding the Complete Cable Fault Detection System A complete cable fault detection solution requires four coordinated equipment types working in sequence: Equipment Type Primary Function Cable Fault Tester (Flashover Tester) Rough fault distance measurement and cable length determination High Voltage Pulse Generator Induces flashover discharge at the fault point, generating acoustic and magnetic signals Cable Path Tracer Determines the exact route and burial depth of the cable Cable Fault Pinpoint Locator Precisely locates the fault point directly above ground within the coarse detection range The XHDD503E+ is purpose-designed for this critical final step — converting approximate fault range data into exact excavation coordinates with industry-leading accuracy. Four Detection Modes in One Device Detection Method Application Acoustic Detection High-resistance faults and flashover faults — captures discharge sound waves from the fault point Magnetic Detection Cable path tracing and deviation judgment — tracks electromagnetic field signals Acoustic-Magnetic Synchronization Automatic time-difference calculation — combines both signals for maximum precision Voltage Method (A-Frame) Direct-buried cable ground faults and sheath damage detection Advanced Noise Suppression Technology Field cable fault detection often takes place in high-noise environments — roadside, inside factories, or near active machinery. The XHDD503E+ addresses this challenge with a multi-layered noise reduction system: 4 Test Modes: One-touch switching between Standard, Enhanced, Noise Reduction, and Custom modes to adapt to varying ambient noise conditions Background Noise Reduction (BNR): Intelligent suppression of environmental background noise for clearer signal identification Mute Noise Reduction: Additional filtering for intermittent or impulsive noise sources 5th-Order Stacked Filtering: Multi-stage digital signal processing to isolate the true fault discharge signature Field-Ready Design Features 5-Inch High-Brightness Touchscreen: Sunlight-readable display with path deviation alerts and proximity-to-fault indicators, enabling clear operation even in direct outdoor sunlight IP65 Protection Rating: Fully dust-tight and protected against water jets, suitable for challenging field environments Multi-Layer Physical Isolation Sensor: Enhanced signal purity through robust sensor shielding against electromagnetic interference Extended Battery Life: Over 8 hours of continuous operation with included fast charger — supports full-day field assignments without interruption Sound Gain Control: 16 adjustable levels (0–112 dB) with 350Ω impedance for fine-tuned acoustic signal acquisition Key Technical Specifications Parameter Specification Positioning Accuracy ≤ 0.1 m (acoustic-magnetic synchronization) Detection Range 0–99.99 ms / 75 mV–75 V Sound Gain 16 levels (0–112 dB), 350Ω impedance Filter Type 5th-order stacked digital filter Power Supply 3.7 V / 3200 mAh (4 × 18650 cells) Standby Time > 8 hours continuous operation Ideal Applications Power utility cable maintenance teams requiring high-precision fault pinpointing Railway, petrochemical, and mining sector electrical infrastructure maintenance Engineering teams already equipped with cable fault distance testers, path tracers, and high-voltage pulse generators seeking to upgrade or expand their pinpoint locator capabilities Field engineers operating in high-noise environments who need reliable signal discrimination to reduce false positives and minimize reliance on operator experience System Integration Note The XHDD503E+ is a specialized precision instrument that excels at its designated role — final-step pinpoint location. For optimal results, it should be deployed as part of a complete cable fault detection system that includes a cable fault distance tester, a cable path tracer, and a high-voltage pulse generator. A fully equipped system enables the complete workflow from "the cable is long" to "dig right here" with confidence. Complete cable fault detection system solutions are available, with support for both full-system configuration and individual equipment procurement based on specific field requirements and existing equipment inventory.
XHHV535-4TS+ High Voltage Pulse Generator: Advanced Cable Fault Detection and HV Withstand Testing Equipment 2026-06-18 XHHV535-4TS+ High Voltage Pulse Generator: Reliable Performance for Critical Cable Testing In the field of cable fault testing and withstand voltage trials, equipment performance directly impacts on-site operational efficiency and personnel safety. The XHHV535-4TS+ high voltage pulse generator is a field-proven solution that has earned recognition from engineering companies and industrial maintenance providers across diverse operational environments. Application Scenarios The XHHV535-4TS+ is purpose-built for a wide spectrum of industrial and utility applications: User Category Typical Application Municipal Utility Departments Fault detection for underground urban cables, street lighting circuits, and traffic power supply systems Large Industrial Plants Routine withstand voltage testing and fault location for factory power cable networks Renewable Energy (Solar/Wind) DC-side cable impulse testing, engineered for demanding outdoor environments Engineering Service Companies Multi-site mobile operations with cart-mounted design for fast deployment Third-Party Testing Institutions Standardized high-voltage impulse output for certified electrical testing Core Feature Highlights 1. Three-Level Voltage/Capacitance Synchronous Switching The system delivers consistent 2048J impulse energy across all three voltage ranges, maximizing discharge energy utilization for varying fault impedances: Range Impulse Voltage Built-in Capacitance Impulse Energy Low 0–8 kV 64 μF 2048 J Medium 0–16 kV 16 μF 2048 J High 0–32 kV 4 μF 2048 J 2. Three Impulse Modes for Operational Flexibility Manual Impulse: Single-shot operation, ideal for precise fault location or repeated probing of difficult faults Periodic Pulse: Adjustable at 3s / 6s / 9s intervals to match different testing rhythms DC Withstand Voltage Output: Dual-purpose unit performs both impulse discharge and withstand voltage testing 3. Comprehensive Safety Protection System Zero-Position Start Protection: High voltage cannot be activated unless the voltage dial is at zero position Grounding Status Detection: Three-color indicator displays ground resistance status (green light: ≤100 Ω, ready to start) Automatic Discharge: Automatically bleeds residual charge from internal capacitors and the device under test when in stop state Overload Protection with Auto-Recovery: Activates when low-voltage side current exceeds 9 A for 5 seconds continuously Over-Temperature Protection: Alarm at 60°C, automatic shutdown at 105°C 4. Field-Optimized Convenience Dual-pointer meters (2.5-grade accuracy) for high-voltage side voltage and current, providing clear real-time impulse process monitoring Built-in high-precision sampling module for direct cable fault waveform output Integrated cart-mounted design combining DC high-voltage source, energy storage capacitors, discharge sphere, automatic discharge, and voltage switching into a single mobile unit Continuously adjustable high-voltage pulse output with uniform discharge characteristics Real-time high-voltage side metering eliminates safety risks associated with residual capacitor charge Key Specifications at a Glance High-voltage pulse output: continuously variable, stepless adjustment Voltage/current display: dual 2.5-grade precision analog meters Output modes: DC, periodic pulse, single-shot pulse — switchable via rotary control Periodic pulse interval: 3 s / 6 s / 9 s selectable Three-level voltage range with synchronized capacitance switching for optimal energy utilization Zero-position start interlock for operational safety Grounding quality detection to prevent risks from poor grounding Over-temperature monitoring with alarm Overload protection with automatic recovery to prevent internal component damage Automatic discharge function (internal capacitors + device under test) in stop mode Built-in cable fault sampling waveform acquisition module Trolley-mounted design for easy on-site mobility Market Recognition The XHHV535-4TS+ has been adopted by power engineering firms, renewable energy project teams, and industrial maintenance service providers worldwide. User feedback consistently highlights three key attributes: accurate parameters, reliable safety features, and robust long-term durability under demanding field conditions.
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