HuazhengHZ2162Transformer Turns Ratio and Winding Resistance Tester Fast delivery Product Introduction In transformer manufacturing semi-finished products, finished products factory test, installation, overhaul, change of tap changer, handover test and preventive test requirements of the power department, the DC resistance of the transformer or the transformation ratio of the transformer should be measured. It can check the welding quality of the winding joints and whether there is an inter-turn short circuit in the winding. It can detect whether the contact of each position of the voltage tap changer is good and whether the actual position of the tap changer is consistent with the indicated position. Whether there is a stock break, etc. The traditional test requires multiple wiring interval tests of two instruments, which takes a long time and poor efficiency, which seriously affects the production progress. In order to meet the needs of fast measurement of DC resistance and transformation ratio of transformers, XX direct resistance transformation ratio integrated tester developed by our company. The instrument adopts one-time wiring, which can complete the transformation ratio test and the test of high and low six-phase DC resistance without disconnecting the wires, and the above functions can be realized only through the touch screen operation. Major Technical Indicators 1. Main indicators of direct resistance: DC resistance test current: AUTO , <20mA , 40mA , 200mA , 1 A, DC resistance test range and accuracy: Display: LCD display Resistor display has 4 effective figures Data storage: 1000 groups Working environment: relative humidity: <80%RH, non-condensing Ambient temperature: -20 °C ~ 40 °C Power supply : AC 220V± 10 V, 50Hz± 1 Hz Fuse 5 A Maximum power consumption: 200W •This product is suitable for 10KV and 35KV level distribution transformers, transformers, motors, generators and other inductive load tests, as well as the measurement of wires, relay switch contacts, etc. •With temperature conversion function, it can be converted to resistance values at different temperatures according to customer needs, which is convenient for data comparison. • It has protection functions such as discharge sound alarm, power supply overheating, and voltage reverse connection. • The on-load switch can be switched directly in the measurement state, and the instrument automatically refreshes the data without reset operation. • It has 6 current gears, and has automatic current gear, which can automatically select the current gear according to the load. •The three-phase precision inverter power supply is used inside the instrument, which eliminates the harmonic influence of the mains voltage during measurement and makes the measurement more accurate. When the working power source is a generator, there will be no impact. •Three-phase output voltage is used to improve the test speed. It can measure the angle between phases and automatically identify the wiring group 0-11. For rectifier transformers with multiple windings at low voltage, the transformation ratio and 7.5° can be measured without disconnecting the low voltage side. Angle deviation.