Fault Location Bridge for Cable Failures

Product Introduction

EDDQ-15Digital High-Voltage Bridge Cable Fault TesterBased onMURRAYThe design is based on the bridge principle, utilizing a switch-mode power supply to form a high-voltage constant current source, with no-load voltage15000VShort-circuit Current5mAUsed for locating the breakdown points and non-breakdown defects of various wires and cables after laying.

EDDQ-15Digital High-Voltage Bridge Cable Fault TesterThe company has adopted full automation for testing and can automatically calculate and display the fault distance after the user inputs the full length of the cable. Using a color touch LCD screen as both the display and operational device, the one-touch operation completely replaces the traditional high-voltage bridge measurement method, offering ease of use, a user-friendly interface, and a combination of text and graphics, ensuring safety and reliability.

The digital bridge and digital megohmmeter are merged into one, offering enhanced functionality. It can automatically calculate the system's absorption ratio and polarization index, allows manual setting of test time, and features memory function to record insulation conditions at different points.

Compared to the B-Reflection Time-Domain Method,EDDQ-15Digital High-Voltage Bridge Cable Fault TesterEspecially suitable for:

1The high dielectric breakdown point of the laid cable, particularly the linear high dielectric breakdown points that are difficult to achieve low resistance, such as the linear high dielectric breakdown of cable intermediate joints (this is mainly due to the poor manufacturing process of cable joints. Under high voltage application, only leakage arc occurs without breakdown discharge).

2The high-voltage bridge balancing method has no test blind spots and is used to determine the breakdown points of short cables and those near the cable ends.

3The high-voltage bridge method requires only the uniformity of the cable phase wire resistance for measurement. However, for cables with poor traveling wave transmission characteristics, such as those with significant dielectric losses,PVCLow-voltage cables

Product Features

1Easier to operate

One-touch operation: Auto-zeroing, auto-ranging, and one-button test results. Fewer buttons, easy to operate, and overcomes human error.

Automated Testing: High intelligence level, automatically completes location, and calculates fault distance based on the test ratio.

Wide Insulation Range Test: Impervious to low current, the insulation resistance test can reach150MΩ。

2Advanced technology

Powerful Integration: Combines digital bridge and digital megohmmeter functions, automatically calculates absorption ratio and polarization index.

Wireless Isolation Technology: Secure and Reliable Communication Operations

Digital Positioning Technology: Full software control, automatic positioning completed, LCD intuitive display.

Test Emergency Stop Technology: Directly press the emergency stop button in an emergency, the instrument will immediately automatically reduce voltage, ensuring safety.

Automatic Pressure Regulation Technology: One-touch operation for automatic pressure regulation and zeroing, intelligent testing.

3High anti-interference performance

Our solution can prevent the interference from other operational cables that may hinder the measurement of test cables, ensuring uninterrupted testing.

4Advanced operational display unit

Color Touch LCD Display: With a color touch LCD screen, offering a more intuitive and user-friendly experience.

Touchscreen Button Operation: The touch buttons completely replace the buttons, offering a more advanced and convenient experience.