Situation: 7 year old, motor controlling, mitsubishi PLC has been very reliable. Electrician has installed hardware for monitoring (PC with GX developer). Unfortunatly the project copy which was on a floppy disk has been lost. Question: how does one retreive this project from the plc? AS I...
Hi. Our companies' building has a 6 year old fire detection system. It's outfitted with a PLC that has addressable heats and smokes also some call points and rate of rise heats with dip switches. These devices are all connected in parallel, on a 15 volt closed loop circuit. Can someone suggest...
A utility provides a facility with 12470 volt 3 phase power.At the remote end of this huge facility is a delta connected sub-station and it's secondary steps down to 480 volts for distribution.
A 3 phase 4000 KW generator (back-up) producing 480 volts has a tie to the secondary side of...
Hi. Our 480 volt ungrounded system utilizes ground detection lights and also an insulation monitor with a Megohm meter.This insulation monitor unit is hard wired to only one of 3 bus phases. My question: How does an insulation monitor work?
My Mitsubishi PLC's lithium battery is nearly 5 years old.
Problem #1 This 2 pin connected, ER17330v/3.6volt battery as it seens, is very elusive. I need a reliable battery cross reference or a distributor.
Problem #2 What are the do's and don't's to changing these batteries?
Thanks!
Generator paralleling problem
Our plant has Two-2 M watt, 480 volt alternators. Scenario: Generators are paralleled via APD onto a common bus. Voltages, kwatts, kamps and frequency meters all concur.
Problem 1: The power factor meters are 180 out. Generator 1 meter is pegged to max. IND...
Have a 3 phase circulator pump motor(fractional HP)that is rated 220/380-418 volt @ 50 cycle.
Problem: Only availble voltages, are 208 and 460 @60 cycle
Please advise...
