БУАВР.C.58, 100, 127

БУАВР.С.58, C.100 and C.127 automatic transfer switch controllers

Purpose:

The БУАВР controls the automatic transfer from the main supply to the standby supply and back, on impermissible phase voltage deviations, phase imbalance or asymmetry, a change in phase sequence, or the loss of one or more phases on the first or second incomer.

The БУАВР can be used in distribution networks as part of:
- automatic transfer switching (ATS);
- emergency transfer switching.
The БУАВР monitors incomer status, controls the circuit breakers, and indicates input and output status.
The БУАВР is built to climatic category У, placement category 2 per ДСТУ ГОСТ 15150-69, and is designed to operate at temperatures from -25°C to +55°C, relative humidity up to 80% and atmospheric pressure from 650 to 800 mm Hg.
The БУАВР is intended for operation in a non-explosive atmosphere, free of gases and vapours in concentrations that attack metal and insulation, and free of saturated water vapour and conductive dust.
Resistance to external mechanical factors — per ДСТУ ГОСТ 17516.1, group М6
Permissible vibration: 1 to 35 Hz at an acceleration of no more than 4 m/s².
The БУАВР is supplied from the monitored network whenever voltage is present on one of the phases of either incomer, or from an additional control power source.
The БУАВР connects to 6 kV and 10 kV networks through an instrument transformer