Specification :

* Digital system with 16 stages ( where it can jump to the required stage without passing the other stages) .
* Working as a voltage fixer ± 4% volt and equipped with a compensation circuit to continue connection between stages.
* Protection from high voltage which resulted from the network or the regulator at 245 voltages.
* Protection from shortage and from current increase by a magnetic thermal breaker.
* Transformer for transferring to the network voltages, and to cancel regulation when necessary.
* Delay working at the operating beginning for ten seconds in order to stabilize with network, it possible to control the time for 3 minutes.
* Delay in organizing operation to avoid network fluctuations, this delay will be canceled at 200 voltages.
* Simultaneous: Since exchange of regulating pads is synchronously with zero voltage wave in order to avoid sparks on contacts.