DEVCTR@USC-ISID.arpa (03/30/86)
I've recently purchased the PERMA POWER ELECTRONICS INC. Perma Power, Power Commander/surge Suppressor. This unit is not the uninteruptable power source (UPS) type which uses an inverter design. The UPS usually converts the AC power to DC, then converts this back to AC which eliminates all the garbage coming in on the initial AC power, and then derives the DC bias voltages as needed. The needed derivation of the DC bias voltages are done in the PC power supply. The new AC voltage to the PC from the UPS unit is pretty clean. The other type is what I have within the Perma Power, Power Commander/ Surge Supressor Unit. Its specifications are: Model RS 562 Cost: $107 through a wholesale Electronics Store Power Control Center Switches One Master, five auxiliary Outlets Five Indicator Lights Six Overload Protection 15 amp circuit breaker Power Cord 12-foot, type SJT: 14/3 Dimensions Width 13 1/4 inches Height 2 1/4 inches Depth 13 inches Warranty 5 years Surge Suppressor Protection Modes Normal (line-to-neutral) Common (line-to-ground) Common (neutral-to-ground) Clamping Threshold (nominal) 225 Volts Response Time 5 pico seconds Let-Through Voltage 400 Volts (IEEE Std. 587 (0.5 microsec-100KHz, 6000 Volt 200 Amp, Ringwave Test Wave) Pulse Life Ten to the 6th Cycles (Ref. Same IEEE Std. 587) Pulse Life ten to the 8th Cycles (5KW peak, 1 millisecond, exponential switching transient test wave) Steady State Power 5 Watts (10 x 1000 microseconds-exponential (accepted industry test impulse for inductive load switching transients) test wave) Single-Surge Energy 70 Joules (IEEE Std. 587 (8 x 20 microseconds, 3.0 KA., Unipolar current test wave)) Peak Current 6000 Volts (limited in 120 V AC distribution systems by wiring devices arc-over to 6000 volts peak (IEEE Std. 587)) Maximum Transient Voltage 6000 Volts (limited in 120 V AC distribution systems by wiring devices arc-over to 6000 volts peak (IEEE Std. 587)) **NOTE** Peak Current specification should be Peak Voltage specification! Peak Current 6000 Amperes (IEEE Std 587 (8 x 20 microsecond, 3.o KA., Unipolar current wave) **NOTE the above should replace the Peak Current specification (typ0) Power Rating:load 1875 Watts, 125 Volts, 60 Hz Noise Filtering Better than 20 dB, 2-100 MHz **NOTE** Care must be exercised that the Power Commander is always plugged into a properly wired, grounding-type power outlet. If any doubt exists consult an electrician. If a matching outlet is not available, have a qualified electrician provide a proper receptacle. You can safely power and switch equipment totaling up to 15 amperes with your Power Commander Control Center. If you shut down your equipment for an extended time, it is advisable to disconnect the line cord. I am not a representative or representing Perma Power Eclectronics inc in anyway but am using their unit. I am sure there others that are just as good or better. ISOBAR is another source for this type of thing. Fred