by Rocket Web | Feb 10, 2026 | Acceptance Testing
Power Quality Problems Are Event Problems A voltage sag may last less than a second and still stop a drive, reset a controller, or interrupt a process. Harmonics can add heating without creating an obvious alarm. Voltage unbalance can affect motors while average...
by Rocket Web | Feb 10, 2026 | Transformer Maintenance
Dry Does Not Mean Maintenance-Free Dry-type transformers avoid the oil-system concerns of liquid-filled units, but they still operate under thermal, electrical, mechanical, and environmental stress. Dust, blocked ventilation, loose connections, harmonic loading,...
by Rocket Web | Jan 19, 2026 | Acceptance Testing
What the Ratio Test Checks Transformer turns ratio testing compares the relationship between primary and secondary windings with the expected ratio for the selected tap position. It also helps confirm polarity or phase relationship, depending on the transformer and...
by Rocket Web | Jan 19, 2026 | MCC Testing
MCC Problems Reach the Process Quickly A motor control center is where electrical distribution meets production equipment. A weak bus connection, failing starter, incorrect overload, damaged bucket, or control-power problem can stop a pump, fan, conveyor, compressor,...
by Rocket Web | Dec 1, 2025 | Resistance Testing
Why Milliohms Matter A high-current connection can look clean and tight while its effective contact area is reduced by wear, oxidation, contamination, poor alignment, or insufficient pressure. Even a small increase in resistance can create additional heat and voltage...
