I have a pair of 21 year old 50 KVA UPSs that are going to be replaced with a pair of new 150 KVA units. The input is 480 3 phase, the output is 120/208 to a pair of 42 position panels (one panel per UPS, 2/0 cable 100 feet away. The load on each UPS is 16 KVA (UPS-1: A phase=48amps, B...
I am looking for a source in the USA for .25 inch wide toothed pulleys and toothed belts to drive a .25 inch shaft on a 10 turn potentiometer for position of a multi turn shaft. Rotation speed is less than .25 RPM.
Also looking for a belt that if cut and layed out flat would look like a...
I should know this, but..... my home is on it's own transformer it's fed with two phases of a three phase 12 KV system. Since the high side of the transformer is fed with two phases 120 degrees out of phase, how does it make 120/240 single phase? the primary (high side) of the xformer...
Good in electronics and telecom, new to BIG 3 phase motors!!
I have an ag well pump.... 100 Horsepower 480 3 phase "part wind" (6 wire) motor with a "starter" (just 2 big contactors really) one has a phnumatic time delay adjustable from 0 to 40 seconds(as found set to 0.1 seconds)unit is 12...
