Price is an important part of the price of insulating transformers. 110 and 220,000 volts high voltage transformer insulation prices can reach the entire transformer rate of 18-25%. When the gap in the process of insulating insulation, the wrong choice of material and size, such as the gap is small, it may cause damage to the transformer, if set, greatly wasted insulation and other materials, improve the price of the transformer. The correct choice of insulation structure, size, material, manufacturing technology, and reasonable to determine the length of the effective insulation gap must be aware of the operation of the insulation transformer subjected to the impact. Often in the use of power transformer power is the effect of the general situation, so it is a long time under the influence of rated voltage insulation, he should have no time limit, can withstand this voltage without any damage. In the power system of the transformer, as a result of normal switching operation or accidental accident resulting in transient over-voltage, in a few cases, up to nearly 4 over-voltage, as long as the voltage value times. These measured voltages are 1% second and generally no more than 0.1 second. Rated operating voltage and over-voltage switching operation is mainly affected by the coil insulation, affecting the grounding insulation components with another coil, coil.
Dry-type transformers are also used for the main insulation oil-immersed transformer insulation components: insulating paper tube, angle ring, component separator, and so on. When designing dry-type transformers, in addition to ensuring that the dielectric strength should be particularly noteworthy, allow the air to cool the coil of the pipe. You need to be careful to ensure that air can most easily access the coil's insulation parts.
Dry-type transformers are also used for the main insulation oil-immersed transformer insulation components: insulating paper tube, angle ring, component separator, and so on. When designing dry-type transformers, in addition to ensuring that the dielectric strength should be particularly noteworthy, allow the air to cool the coil of the pipe. You need to be careful to ensure that air can most easily access the coil's insulation parts.