Cable Fault Finder

Integrated cable fault finder is mainly used for impacting discharge and DC withstａnd voltage test of LV/HV cable faults testing.

This integrated portable cable fault locator is an advanced experimental instruments which integrated of a High voltage DC source, an energy storage capacitor, a discharge ball,an automatic discharge device and a cable fault tester. It is convenient to use, portable, safety and reliability.

It adopts high precision and stability best qualified HV electronic components and high frequency high voltage technology which makes the machine has the advantages of simple structure. In order to keep the user’s habit of using the transformer and the operating box, the units is human designed operation. Which integrated micro reliable circuit, safety and visible, never be broken down, and with the function of auto timing, manual surge and withstａnd voltage test. It is the most user-friendly operation of the Trolley type DC high-voltage pulse equipment and the best ideal device for power cable fault detection.

Hot tags:cable fault locator ,cable fault finder,cable fault tester,cable fault distance locator,tdr cable fault locator

★ High voltage pulse output is uniform and controllable.

★ It can display current value and voltage value with1.5 pointer, directly to watch the surge discharge process

★ With the function of High voltage side measurement,which is real-time and accurate.

★ Zero start protection,safe and reliable

★ Unique high voltage measuring design, under stop status, it can discharge the internal capacitor electricity automatically.

★Discharge time has timing and manual , two methods.

★It has the DC withstａnd voltage function.

★ There is high precision test cable fault sampling waveform module in the internal .

★ Portable trolley design, it is easier to move

★ Impulse voltage：0～35kV

★ Voltage divider:Accuracy 1.5

★ Internal capacitance ：4uF

★ Surge energy :0～2450J

★ Surge time: Auto surge about 5s, also can control by hands.

★ Surge power：2KVA

Before using the trolley high-voltage pulse generator, Selecting the function switch, then press the start button to perform high-voltage boosting. According to the flow chart as below to test the cable. After stop the test, the internal system discharge device will auto discharge the remaining high voltage on the accumulator.

Figure 1 : Panel Diagram

1. Ammeter: Show the current of low voltage side

2. Voltmeter: Show high voltage output

3. Zero: it means that the voltage adjustable knob is at the Zero . the Start key is effective if the Zero indicator is brighter only.

4. High voltage: High voltage output indicator light. Light is on means there has high voltage output. Otherwise, light is off there is no high voltage output.

5. Power indicator light: Power indicator is light and AC220V is normal after turn on the power switch.

6. Power switch: AC 220V 50Hz power input socket. Fuse holder and main power switch of device. 8A Fuse.

7. Single discharge: The indicator will light when choose single discharge

8. Model selection: Withstａnd Voltage, Single model and Cycle model. WV model is to start withstａnd voltage test to cable. Single model is discharge by hａnd controlling. Press it and then adjust High voltage knob to control discharge time by hand. Cycle model is discharged automatically which means select this function to rise up voltage after start high voltage ,this device will be automatic trigger impulse discharge, time is about 5 seconds.

9. Stop button:when the test is completed or abnormal, press the key to cut off the high voltage output, the start level will automatically fall, this will also automatic discharge remaining high voltage inside the device.

10. Start button: At the zero state to pull up the start, the high-voltage is start, at the same time the High voltage light is on. At the non zero state, the start is invalid.

11. Q9: Use double Q cable connect the DC High Voltage Pulse Generator with cable fault locator, only at high voltage flashover is effective.

12. Voltage adjust: This knob is at the zero state, zero indicator is on, high voltage can start. After starting high voltage, can rise up the voltage by the voltage adjust knob.

Figure 2: Back Panel Diagram

1. Safety GND: when working must be grounded, to ensure the safe use of equipment.

2. HV GND: must be connected to the root of the cable grounding wire, to ensure good grounding.

3.Sampling GND: Connect to the root of the tested cable,ａnd can be connect with the HV GND to the root of tested cable, used for sample the waveform at flashover state, must be earthed well during working.

4. HV output: Special DC high voltage output terminal