Automatic Voltage Regulator (AVR)
Howard Industries’ SVR-1 single phase step voltage regulators are tap changing autotransformers designed to automatically regulate distribution line voltages in a range of plus or minus 10% in thirty-two steps of approximately 5/8% each. The following ratings are available.
Voltage: 2500 Volts (60 kV BIL) through 19920 Volts (150 kV BIL)
Current: 50 through 1665 Amps
KVA: 50 through 833
Frequency: 50 or 60 Hertz
Internal potential winding taps and/or an external ratio correction transformer are provided on all ratings so that each regulator may be applied within a range of system voltages.
A digital control system automatically operates the tap changer mechanism to maintain system voltage within desired limits. The control system is externally programmable to allow precise setting of control limits and provides sophisticated capabilities for special control requirements, communication, and data logging.
Overhead type voltage regulators are supplied with support brackets for pole mounting and have bolt-down provisions for pad-mounted applications. Substation type voltage regulators are provided with rectangular substation bases. Elevating platforms are available as an option.
SVR-1 voltage regulators are designed for reliable operation and ease of maintenance and are supplied with a full array of standard features for routine applications. Optional accessories are available to accommodate special applications.