SERVO VOLTAGE STABILIZER (OIL COOLED)
THE CONSTRUCTION PROCESS
At the heart of the Voltage Stabilizer are the regulator coils. While some small capacity regulator coils are uncompensated, all larger capacity voltage stabilizer regulator are fully compensated.
Compensation is a method where by the naturally high reactance of long thin coils, used in the construction of the ‘Reliable’ Regulator coil is limited to a low value across the range of variation.
Limiting the reactance tends to produce a linear variation in the output voltage of the regulator, across the range of operation. Contact pick up tracks are machined onto the faces of the coils. Depending on the required output arrangement there may be tracks on both sides of the coil, or only on one side.
The coils are then mounted on a core of grain oriented silicon steel laminations.
The core and coils are mounted in a steel framework that allows roller contacts to be presented to the coil faces at a constant pressure across the range of operation.
To achieve variation in the output voltage the roller contacts are moved along the coil face. Roller contacts are housed within retaining assemblies that are in turn fixed to a carrier board. The carrier board’s position is maintained by a chain drive system that is in turn attached to the drive mechanism, either hand- or motor-driven.