Thanks for your help.
The Sencore LC103 looks like the instrument for the job.
For those interested in the method used to date, we wired a 40W, 110V lamp in series with the capacitor under test and a variac and isolation transformer/rectifier, and slowly increased the voltage across the...
In the installation, all the surrounding equipment works off 48VDC. The only power supply available is 48VDC. To use a standard 24V PLC will mean a DC-DC converter - another piece of equipment that can fail! Hence, if there are 48VDC PLCs available, the installation would be a little simpler...
Information on 50Hz voltage drop figures can be found at some of the Australian cable manufacturer's web sites.
www.olexcables.com.au has a handbook which is downloadable in PDF format from their website.
www.au.pirelli.com/uk/cables also lists volt drop figures.
Australian Standard AS/NZS...
There are a number of large capacitors in power supply circuits on our trains. Typical sizes include 3300uF @ 350V; 1uF @ 660V, 10uF @ 800V.
Does anybody have any recommendations for test equipment to check if capacitors are good, or starting to fail.
A capacitance check on a multimeter will...
My experience of NiCd batteries is that they are not good in situations where vibration can be experienced (as on railway vehicles), having a much shorter life than the 15 - 20 years promised by the manufacturers. They probably would last longer when used in a stationary situation.
Used as...
Radiant heating is subjecting an object to a source of heat such that the heat radiates from the source and heats the object. For example, a person standing in front of a fire is warmed by radiant heat from the flames.
Induction heating is heating an object (often a bearing or metallic ring) by...
In Australian rural areas, there is also the single phase 480 V centre tapped system, (or is it 2 phase, 180 degrees apart?). The neutral is grounded, providing two supplies at 240 volts or one supply at 480 volts.
