Product Details

  The product has a compact structure, strong versatility, convenient use, and stable performance, especially convenient for users to test the insulation performance of various electrical equipment on site. There are three types: AC, AC/DC, and AC cascade. It adopts a unique structure of an axisymmetric unequal-sided octagonal shell; it can output dual high voltage. The oil level in the oil tank is below the tank edge, avoiding oil leakage. The terminals are on the tank cover, avoiding collisions and improving mechanical and electrical performance. It features a compact structure, stable electrical performance, sufficient capacity, small size, light weight, and easy use and maintenance.

Working Principle:

The variable frequency series-parallel resonant test transformer provides power supply through a frequency modulation controller. The test voltage is initially boosted by the excitation transformer, then the high voltage is applied to the reactor L and the test object CX. By changing the output frequency of the frequency modulation controller, the circuit is in a series resonant state; adjust the output voltage of the variable frequency controller so that the high voltage on the test object reaches the required voltage value. The resonant frequency of the circuit depends on the capacitance CX of the test object and the inductance L of the reactor, the resonant frequency.