DC Resistance Tester

  • Transformer DC Winding Resistance Tester

    Transformer DC Winding Resistance Tester

    Transformer DC resistance tester. The instrument adopts a brand-new power supply technology, which has the characteristics of small size, light weight, large output current, good repeatability, strong anti-interference ability, and perfect protection functions. The whole machine is controlled by a high-speed single-chip microcomputer, with a high degree of automation, with automatic discharge and discharge alarm functions. The instrument has high test accuracy and simple operation, which can realize the rapid measurement of transformer direct resistance.

    Model No.: PS-DC10A

  • PS-ZD20T three-phase winding resistance tester three-channel DC resistance

    PS-ZD20T three-phase winding resistance tester three-channel DC resistance

    DC resistance of transformer is the essential item to be tested in semi-finished product, finished product delivery test, installation, handover test and preventive test by electric power department, and is effective to help find manufacturing defects such as materials selection for transformer coil, welding, looseness on connection, strand breaking, wire breaking and so on, as well as hidden dangers after operation. To satisfy the requirement for quick measurement of DC resistance of transformer, our Company has developed PS-ZD20T three phase winding resistance tester aiming at YN connection winding. The tester can fulfill functions such as simultaneous energization on three phases, independent current sampling, voltage sampling, as well as simultaneous measurement and display of three-phase resistance value and three-phase unbalance rate, thus can significantly reduce test time for DC resistance of transformer, solve the problem of long test duration for DC resistance of each tapped winding of electric power transformer. It requires only 1/3 of the time required by traditional method.

    Model No.: PS-ZD20T

     

  • PS-ZD20 20A Transformer DC Winding Resistance Tester

    PS-ZD20 20A Transformer DC Winding Resistance Tester

    Transformer DC resistance is a must-test item for semi-finished products, finished products factory test, installation, overhaul, change of tap changer, handover test and preventive test of power sector in transformer manufacturing. It can check the welding quality of the winding joint and whether the winding is short-circuited between turns. It can check whether the contact of each position of the voltage tap changer is good, whether the actual position of the tap changer is consistent with the indicated position, whether the lead wire is broken, and the multi-strand wires are wound in parallel. Whether there is a stock break, etc.

    Model No.: PS-ZD20