Cable Burner

There is such a situation that the cable maintenance workers have the most headache. When a well-insulated cable is shut down for a period of time, there is a problem with the insulation when it is used again. When we use the high-voltage flashover method to test, there is always no reflected wave, and no sound can be heard at a fixed point on the whole line of the cable; after a period of high-voltage impact, the insulation resistance value is measured without increasing but increasing. This situation is a typical joint failure. This phenomenon is caused by the hidden dangers in the construction of the connector, and the cable does not slowly invade the connector for a long time, resulting in poor insulation。

In view of the above situation, we developed HM-KC60 CNC dc withstａnd voltage burn-through source (dc high-voltage constant-current power supply), which can produce dc constant-current voltage and form a point heat source in the insulation. Through the point heat source, the insulation condition can be changed to reach our ideal testing state.After a lot of practice, this method is proved to be very effective in solving joint faults and other difficult faults.

In view of the above, we have developed a KC-60 NC type DC withstａnd voltage burn-through source (DC high voltage constant current power supply). This kind of equipment can emit a DC constant current voltage, forming a point heat source when the insulation is not good, and changing the insulation condition by the point heat source To achieve our ideal test status. A large number of practices have proved that this method is very effective in solving connector failures and other difficult faults. HM-KC60 CNC digital DC withstａnd voltage burn-through source (DC high voltage constant current power supply) is mainly used for high voltage cable insulation defects and high resistance leakage. The burn-through of the fault point causes the insulation resistance value of the poor insulation point and the high-resistance fault point to be greatly reduced, and the fault test condition is reached (the high voltage pulse can fully discharge). At the same time, it can also be used as a DC high-voltage power supply, which can perform DC withstａnd voltage tests on cables, capacitors, motors, porcelain bottles, etc. Used for DC withstａnd voltage of high-voltage electrical equipment, especially suitable for burn-through of high-resistance fault points of power cables, reducing the resistance at fault points。

1．DC withstａnd voltage test Can output 60kV DC voltage, can be used for DC withstａnd voltage test of high voltage cables and electrical equipment。

2．Burn-through cable failure points are particularly effective for breakdowns where high-voltage pulses such as high flashover resistance and intermediate connector water and moisture are difficult to penetrate.

3.Used for burn-through of high voltage cable with poor insulation points and high resistance leakage fault points to reduce its insulation resistance and meet the requirements of fault testing。

4.Adopting switching power supply technology, PWM pulse width modulation, adjusting output voltage and current, super audio full-bridge inverter, voltage doubler rectification, small ripple coefficient, no noise。

5.Using single-chip industrial control technology, the burn-through voltage is automatically adjusted down as the insulation resistance value is reduced, the burn-through current is greatly increased, and the fault of the insulation failure point and high-resistance leakage point of the cable in a short time (maximum current 600mA)。

6.Large-scale integrated circuit and digital control technology are used to realize multiple safety protection functions such as burn-in automatic shutdown, automatic overload protection, high temperature automatic alarm, etc., the maximum voltage, maximum current, and limit power are triple-limited；

7.Professionally designed high-voltage output socket and high-voltage plug-in connector. The length of high-voltage cables can be determined according to user needs, and it is easy to replace.。

8.Internally adopts high-precision digital detection technology and high-tech insulation technology, and uses a large-screen color liquid crystal as an information terminal, which can clearly display the real-time change curves of voltage and current during burn-through, and realize real-time collection of voltage and current values. And record the test time。

9.The high-voltage part is packaged with solid insulation materials, which can be used in low-pressure and humid environments at high altitudes.

1.Max output rated voltage：60KV

2.Max output rated current：600mA

3.Continous power：1000W

4.Display error：＜±1.5%

5.Working voltage：AC 220V±10% 50Hz

6.Working temperature ：-20℃ — 50℃

7.RH：≤90%