Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 3000unit/year |
| Delivery Time | 5-8 work days |
| Packaging Details | wooden packaging |
| Brand Name | XZH TEST |
| Model Number | XHHV535-4T |
| Certification | ISO CE |
| Place of Origin | Xi'an Shaanxi China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000unit/year |
| Delivery Time | 5-8 work days | Packaging Details | wooden packaging |
| Brand Name | XZH TEST | Model Number | XHHV535-4T |
| Certification | ISO CE | Place of Origin | Xi'an Shaanxi China |
| High Light | Cart-Mounted 4μF Surge Generator ，2550J Cable Fault Impulse Tester ，Integrated DC Withstand Voltage Test | ||
Designed for: Power Utility Field Service Teams, Cable Fault Location Contractors, Electrical Testing & Commissioning Engineers
Core Value: Integrated cart-type DC impulse high-voltage generator delivering 2550J discharge energy with a 4μF built-in capacitor — purpose-built for cable fault pinpointing and DC withstand voltage testing in field environments where mobility, reliability, and operator safety are non-negotiable.
The XHHV535-4T is engineered specifically for professional cable fault location service providers and utility maintenance departments who require a self-contained, mobile high-voltage impulse source that can be deployed directly at the fault site — without the setup complexity of separate transformers, capacitor banks, and control consoles.
Conventional high-voltage impulse test setups require field interconnection of separate DC power supplies, capacitor banks, discharge sphere gaps, and safety discharge devices — a time-consuming process prone to connection errors and inconsistent performance. The XHHV535-4T eliminates this fragmentation by integrating all five subsystems within a single mobile cart chassis:
| Subsystem | Integration Benefit |
|---|---|
| DC High-Voltage Power Source | High-frequency HV technology with miniaturized, high-reliability circuit design — eliminates bulky external transformer modules |
| 4μF Energy Storage Capacitor | Built-in, pre-wired, and factory-tested — no on-site capacitor bank assembly required |
| Discharge Sphere Assembly | Precisely gapped and calibrated at factory; ruggedized against transport vibration |
| Automatic Discharge Device | Integrated safety discharge circuit with timed auto-discharge — protects operators during cable disconnection |
| Fault Tester Sampling Module | Built-in sampling interface for direct connection to cable fault pre-locator (TDR) and acoustic-magnetic pinpointers |
Operator-Centric Design: The XHHV535-4T adopts a user-centric control philosophy that mirrors the familiar transformer-and-cabinet workflow experienced utility technicians have used for decades — while delivering the performance advantages of modern solid-state HV technology.
| Application | Scenario |
|---|---|
| Cable Fault Pinpointing | Impulse discharge creates acoustic and electromagnetic signals at the fault point for precise location using acoustic-magnetic receivers |
| DC Withstand Voltage Testing | Post-installation and post-repair verification of cable insulation integrity per IEC standards |
| Pre-Commissioning Cable Testing | New cable circuit verification before energization — identifies installation damage, joint defects, and manufacturing flaws |
| Periodic Preventive Maintenance | Scheduled assessment of aging cable infrastructure to predict remaining service life and prioritize replacement CAPEX |
Q: How does a high voltage surge generator work in cable fault detection?
The surge generator discharges a high-energy pulse into the faulty cable, creating a controlled high-voltage arc at the fault point. This arc produces both an acoustic signal (loud thumping sound detectable by ground microphones) and an electromagnetic pulse (detectable by an inductive receiver). By combining acoustic and electromagnetic signal arrival times, operators can pinpoint the exact fault location with precision—a technique known as acoustic-magnetic synchronization.
Q: Which voltage range should I select for different cable types?
Voltage selection follows the cable's rated operating voltage as a general guideline. For low-voltage cables (up to 1kV), use the 8kV or 12kV range. For medium-voltage distribution cables (6-15kV), the 16kV range is appropriate. For high-voltage transmission cables (35kV and above), use the 32kV range. Always consult the cable manufacturer's maximum test voltage specifications and ensure all safety clearances are maintained during high-voltage operation.
Q: What safety precautions must be observed during surge generator operation?
High voltage surge generator testing requires strict safety protocols. Always verify the cable is fully de-energized and isolated from all power sources before connection. Establish a minimum 5-meter safety perimeter around the test zone with warning signs. All personnel must wear appropriate PPE including arc-rated clothing, HV insulating gloves, and dielectric overshoes. The integrated safety features—automatic discharge upon power-off, emergency stop, and zero-voltage interlock—provide additional layers of protection but should never replace proper safety procedures.
Q: What is the advantage of multiple energy levels (Joules) on this unit?
Different energy levels serve different diagnostic purposes. Low energy settings (e.g., 864J–1024J) are ideal for initial fault confirmation and locating high-resistance faults where excessive energy could worsen cable damage. Medium energy (1225J–2048J) provides optimal acoustic signal strength for most routine fault pinpointing. High energy (2450J+) is reserved for very long cables, deep burial scenarios, or high-impedance faults that require stronger arc generation to produce a detectable acoustic signature. The three-level selection allows operators to match energy output to field conditions.
Q: What warranty and support is included with this surge generator?
12-month standard warranty against manufacturing defects with lifetime technical support. CE and ISO 9001:2015 certified. Each unit includes the surge generator, HV output cable, ground cable, discharge rod, user manual, and a heavy-duty trolley with locking casters for safe transport. On-site installation, commissioning, and operator safety training are available upon request. Spare parts including discharge gaps, capacitors, and HV diodes are stocked for rapid replacement.
Company Details
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
1000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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... 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...
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