De-energized tap changers are used for voltage regulation of oil-immersed transformers within certain limits. The required winding taps must be set with the transformer switched off.
The universal PBVKL series of de-energized tap changers is designed for mounting on the cover of the transformer and includes three main types - PBVKL01, PBVKL02, PBVKL04. All are designed, manufactured and tested according to the requirements of the International Standard IEC 60214-1.
|Rated current (A)||200, 400, 630, 1000 for a single current carrying path
/up to 4000 with 4 parallel branches/
|Rated voltage (kV) – three phase||17.5; 24; 41.5; 72.5; 123 and 170|
|Rated voltage (kV) – single phase||17.5; 24; 41.5; 72.5; 123; 170 and 245|
|Number of steps||Up to 17|
|Carrying flange shape||round|
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