AR - 1215 AC LINE VOLTAGE REGULATOR
drawing 40 to 50 watts total.
DEFINITIONS
VOLTAGE REGULATION: The AC line voltage is a number indicating the nominal electrical potential that has been adopted in a region for powering electrical equipment of all kinds. In most of North America it is 117 volts AC; in Japan, 100 volts; and in many other countries 220, 230, or 240 volts. The actual voltage can fall below or rise above this nomi- nal level due to brownouts, power cutbacks, use of substandard wiring, and other causes. These devia- tions can cause poor performance or a malfunction. A regulator is a device which, through use of a trans- former, corrects the voltage deviation by stepping it up or down so that it is as close as possible to the nominal level.
SPIKE: A pulse of energy on the power line. Spikes can have voltages as high as 6000 volts. Though they are usually of very short duration, the energy they contain can be considerable, enough to dam- age sensitive
RFI/EMI INTERFERENCE: Noise from RFI (Radio Frequency Interference) or EMI (Electro Magnetic Interference) involves lower voltages and less energy than is found in spikes, but it is continuous rather than transient in nature. It is not likely to cause physical damage, but it can certainly be annoying, producing static in audio circuits, “snow” on video screens, or garbled data in computers. Noise can be introduced into AC lines by nearby radio transmitters, certain kinds of lighting, electric motors, and others.
Because noise occurs at higher frequencies than the 50 or 60 Hz AC line, it can be effectively reduced through use of
EXTREME VOLTAGE PROTECTION
The
To provide protection against a catastrophic error in AC mains wiring, dangerously high voltages (those over approximately 300V) will cause an internal fuse to blow, but equipment plugged into the Voltage Regulator will not be damaged.
FUSES AND CIRCUIT BREAKERS
There is one fuse and one circuit breaker in the
1.A
2.A
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