Control & Power Panels
What we do
This page covers the two ends of panel work: finding faults in an existing panel, and building or changing panels to automate a machine. Both depend on the same thing, a panel that can be read. Wiring that is labelled and matches its drawing turns a long fault hunt into a short one.
For faults, the approach is to measure the circuit while it misbehaves rather than replace parts one at a time. Intermittent faults that show up once a shift are caught by leaving monitoring connected instead of guessing. For automation, panels are designed around the machine's sequence, with the PLC, drives, HMI and safety circuits integrated and tested before the panel goes on site.
Heat is the most common cause of panel failures in Indian plants, especially in summer. Every visit checks fans, filters and the temperature inside the enclosure, because a panel running hot will keep failing whatever part is replaced.
Scope
What's covered
- Fault finding on control, power, MCC and PLC panels
- Measurement under fault conditions rather than swapping parts
- New and modified panels for machines and production lines
- PLC, HMI, drive and safety relay integration inside the panel
- Panel clean-up: wiring, labelling, ventilation and terminations
- As-built drawings updated with every change
Questions
Control Panel & Automation: common questions
Parts have already been replaced and the panel still trips. What next?+
Measure rather than substitute. Swapping parts tests one guess at a time; measuring the circuit while the fault is present shows what is actually happening. For faults that appear only occasionally, logging equipment is left connected to catch the event.
Can an existing panel be modified to add automation?+
Often, yes, if there is space, the incoming supply can carry the extra load and the existing wiring is in reasonable condition. Where the panel is overcrowded or poorly wired, a new panel is usually quicker and safer than adding to it.
Do you supply drawings for panel work?+
Yes. Changes are marked on the drawings, and where none exist the panel is traced and drawn. Up-to-date drawings are what make the next fault quick to find.
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Written & reviewed by MachineryFix
Last reviewed — questions? Call +91 70133 33007