MSDQ-80 CNC cable fault location intelligent bridge is a high-voltage cable system insulation fault location intelligent bridge that integrates burnthrough and intelligent bridge. The burnthrough function outputs a maximum voltage of 60kV and a short-circuit current of 600mA, which can quickly burn high residual voltage cable faults into low resistance. The maximum current of the smart bridge is 600mA, suitable for insulation fault pre positioning of high voltage, large cross-section, and long length cables. High current can significantly improve the accuracy of fault distance measurement.

1. Adopting a full touch large screen color LCD display:

Built in high-precision digital detection and control technology, real-time acquisition and display of high voltage and current values; It has achieved triple limitations of maximum voltage, maximum current, and maximum power, and has multiple safety protection functions such as automatic high-temperature alarm and misoperation alarm.

2. Burn through function:

Display the current real-time current and voltage test values and draw curves;

Display the preset voltage value as a percentage;

◆ Display the test resistance value;

Display the startup time.

3. Bridge function:

◆ Equipped with fully automatic testing function, directly displaying the fault distance

Display real-time current and voltage test values during the current test;

There are two testing methods available: known cable length or known cable cross-sectional area. Input the total length or cross-sectional area of the cable without manual intervention, with one click automatic testing and direct display of results; After the test is completed, the output can be automatically turned off;

Compared with the time-domain method of wave reflection, the MSDQ-80 CNC cable fault location intelligent bridge is particularly suitable for:

1. The high resistance piercing points of the cable after laying, especially the linear high resistance piercing points that are difficult to burn into low resistance, such as the linear high resistance piercing of the middle joint of the cable (this is mainly caused by the poor manufacturing process of the cable joint. When high voltage is applied, only the creeping arc is leaked without breakdown discharge).

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

3. The high-voltage bridge method only requires the uniformity of cable phase line resistance for measurement. Cables with poor wave transmission characteristics, such as PVC low-voltage cables with high dielectric loss;

Product features:

1. The device uses a switch mode power supply with a maximum output voltage of 60kV and a maximum current of 600mA.

2. Continuous voltage regulation and good current stability. The bridge mode can operate in a load short-circuit state for a long time.

3.  The touch screen color LCD display and the operation buttons on the control panel are at low potential, which is safe and reliable.

4.  The four terminal resistance measurement method avoids errors introduced by lead resistance.

5. The voltage drop method is suitable for pre positioning insulation and protective layer faults in cables with long distances, thick wire diameters, and high voltages.

6. When encountering a high breakdown voltage of a faulty cable, the burning through function of the equipment can be used to reduce high resistance or flashover faults to low resistance faults, and then the intelligent bridge function can greatly improve the accuracy of fault location.

7.  The burn through/bridge mode switching adopts high-voltage electronic switches, which do not require manual mechanical conversion switches. The operation is simple and reliable. In the corresponding working mode, the LCD screen will prompt the relevant wiring methods to prevent misoperation and facilitate user operation.

8.  The testing and control data between the high-voltage control detection unit and the low-voltage control detection unit of the instrument are transmitted through optical fibers, which eliminates the need to place the entire operation interface and LCD screen on high potential, greatly improving the safety of users when operating the instrument.

9. The instrument is equipped with a high-precision voltage detection and control unit, which can collect and display real-time voltage and current values; It has achieved triple limitations of maximum voltage, maximum current, and maximum power, and has multiple safety protection functions such as automatic high-temperature alarm and misoperation alarm.

10. Easy to operate: One click operation: automatic zero adjustment, automatic distance measurement, and one click test results. Few buttons, easy operation, and overcoming human error;

11. Automated testing: high level of intelligence, automatic positioning, and automatic calculation of fault distance based on testing ratio;

12. Digital positioning technology: software full control, automatic positioning completion, LCD intuitive display;

13. Testing emergency stop technology: In case of emergency, press the emergency stop button directly, and the instrument will immediately automatically reduce pressure to ensure safety;

14. Automatic voltage regulation technology: one click operation, automatic voltage regulation, zero adjustment, intelligent testing.

15.  High anti-interference performance: It can avoid the phenomenon that the test cable cannot be measured due to interference signals from other operating cables, so that the test is no longer affected.

16.  Advanced operation display device:

17. Color touch LCD display: using a color touch LCD screen display, more intuitive and user-friendly;

18. Touch button operation: Touch buttons completely replace buttons, more advanced and convenient.