Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A method and apparatus for protecting a low voltage system, such as an alarm system, is described. The method and apparatus includes power line surge protector and a plurality of low-voltage surge protectors housed within a common cabinet. The low-voltage surge protectors are mounted in connectors that provide physical support as well as electrical connections. These electrical connections are routed to a set of input and output terminals by a printed circuit board that also provides support for the connectors and terminals. The combination of power line surge protectors and low-voltage surge protectors may help reduce damage to equipment such as an alarm system during power surges, perhaps caused by electrical storms or heavy electrical equipment being operated nearby. Because of the radio frequency noise emanating from the power line and the power line surge protector, a shield is provided that reduces the amount of noise that is transferred to the low-voltage signal paths.

Abstract: The method and apparatus includes an uninterruptible power supply along with its rechargeable battery and a plurality of video protection circuits all within a common chassis. The video protection circuits are configured to protect the digital video recorder from surges introduced at the video cameras or cabling. The uninterruptible power supply is configured to provide power to the digital video recorder should a line voltage power failure occur and may also include a surge protector to further protect the digital video recorder from power line surges. Since all components are housed substantially within a common chassis, a method of isolating the video protection circuit and associated connectors from the radio frequency noise within the common chassis is described as well as a method and apparatus to allow removal and replacement of the video protection circuits should a power surge destroy them.