thread237-482580
I believe some of the Pre J1939 Cat units are difficult to use the Deep Sea panels because Cat did not bring out J1939. The Cat D3456 engine for example.
We have two new identical 350hp, 50hz, 1500rpm , 380v motors (derated from 400hp, 460, 60hz)
running on sheaves and belt driven common shaft. We are showing a 2 rpm difference between the two motors. (And significant load differences)
How much, if any, rpm differential is allowed by NEMA or...
Does anyone know of a simple and relative inexpensive device to measure belt slippage between the driver and the driven ( v belts and pulleys)? I want to have an alarm or fault shutdown if the slippage increases to a preset limit. Generally we are dealing with 5V and 8V sheaves and usually...
We are puzzled regarding (#2 generator) a 400kw gen set on a oil rig.
The generator is 480 wye ungrounded neutral. The generator is a WEG which has a separate power circuit for the AVR and it senses off of the 240volt inter connections. The AVR is single phase.
There are many 480volt three...
We have a 400hp, 60hz, 575volt, fla 360, electric motor on a portable machine. We want to use a portable power cable such as 3/c type W. We would also consider single conductor type W, DLO or G.
Cut sheets for Type W show that 3/C is rated 350amps for 350mcm, 430 amps for 400mcm, 460amps for...
WE NEED TO REPLACE A 375HP DIESEL ENGINE WITH A 460V,60HZ 1800 RPM,DESIGN A, SF 1.15 ELECTRIC MOTOR. OUR ENGINEERS PROPOSED A 250HP ELECTRIC. HOWEVER WE DID UPSIZE THE ELECTIC TO 300HP SINCE IT WILL OPERATE ON 380VOLTS, 50HZ.
THE DIESEL ENGINE HAS ABOUT 75HP OF LOAD WHICH THE ELECTIC WILL NOT...
