Surge & Hi-Pot Test Service


Motor Surge & Hi-Pot Testing in Singapore
Standard insulation resistance (megger) testing only checks winding-to-earth insulation. It will not find a turn-to-turn or coil-to-coil weakness, which is how most winding failures actually start. Surge comparison testing will.
RPM provides surge, hi-pot and insulation testing at our Tuas workshop and on customer sites.






Baker Tester
Bearing Monitoring Test
Infra-red Thermal Imager Test
Baker Surge & Hi-pot Test
Tests We Perform
Surge comparison test — Applies a fast-rising voltage pulse to each phase and compares the response waveforms. Detects turn-to-turn shorts, coil-to-coil faults, phase-to-phase weakness and incorrect connections that no other test will find.
Hi-pot (high potential) test — Applies elevated DC or AC voltage between windings and earth to prove ground-wall insulation strength.
Insulation resistance and polarisation index — Measures insulation condition and moisture contamination over a timed test.
Winding resistance balance — Confirms phase resistance is balanced within tolerance, revealing bad joints and connection faults.
Why It Matters
A turn-to-turn fault typically develops months before the motor fails. Once it does fail, you are looking at unplanned downtime plus a full rewind. Surge testing finds the weakness while the motor is still running, so the repair can be scheduled into a planned shutdown instead of happening at 3am.
Call: +65 6862 0560
WhatsApp: +65 9017 5410
Email: rpmeepl@singnet.com.sg
Workshop: No. 19 Tech Park Crescent, Singapore 638113 · Mon–Fri 9:00am–5:00pm
© RPM Electrical Engineering Pte Ltd. All Rights Reserved.
RPM Electrical Engineering Pte Ltd
Motor Down? Call Us.
Send us the nameplate details and a photo of the motor and we will tell you whether it's worth rewinding.
Call: +65 6862 0560
WhatsApp: +65 9017 5410
Email: rpmeepl@singnet.com.sg
Opening Hours:
Weekdays: 9:00am - 5:00pm
Weekends: Closed
Services:
Rewinding of Electric Motor & Generator
Constructional Electrical Work
Overhaul of Motor& Generator
Rewind of Transformer & Coil
