DRSP-10KVA/400V Induced Withstand Voltage Test Device - Yangzhou DARUI
DARUI Electric recommends
DRSP-10KVA/400VInduced Withstand Voltage Test Device, according to national test standards, the induced test voltage for power transformers and voltage transformers is generally considered to be 2 to 3 times the maximum working phase voltage. As is well known, when a transformer operates at rated frequency and rated voltage, the iron core is close to saturation. If a test voltage greater than the rated voltage is applied across the windings of the transformer under test using a power frequency supply, the no-load excitation current will increase sharply to an unacceptable level. From the relationship of induced electromotive force, it can be seen that in order to apply a test voltage greater than the rated voltage without saturating the iron core, the method of increasing the power supply frequency (f) can be adopted, and a power generator with more than double the frequency must be used.
For test objects such as power transformers and voltage transformers, the DRSP-10KVA/400V Induced Withstand Voltage Test Device not only performs external power frequency high voltage tests on the main insulation of fully insulated transformers, but also conducts induced high voltage tests on the longitudinal insulation of transformers and the main insulation of semi-insulated transformers.
Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.!
