The PdMA Corporation is the leader in portable electric motor and generator testing.
Online and offline testing of your assets can be easily accomplished. The PdMA line of testers uses a light-weight, portable design that can be carried anywhere.
Be able to know how well your electric motors are performing in 6 critical areas:
phase to phase resistance, inductance, impedance and current imbalance are used to determine if turn or phase shorts are present as well as faulty connections.
Identify cracked or broken rotor bars, porosity and high resistance connections on the end rings through motor current signature analysis and our rotor influence check.
Resistance to ground values for motor windings decrease as moisture and contamination increases. MCE Gold provides testing capabilities up to 5000VDC and offers continuous graphing of the polarization index (PI test). The graphing function reveals much more about the status of the insulation than a simple ratio number. With the new materials used in insulation, the final PI number may be within tolerance, but the graph will show if repeated discharge was occurring during the test. Insulation is also tested with step-voltage.
Bowed shafts, cocked end rings and degraded journal bearings create magnetic imbalances. These imbalances sow up as 1st and 3rd sidebands around the eccentricity frequency or as a "bow tie" shape on the rotor influence check. Either way, PdMA has an online and offline test to verify if your asset is eccentric.
The power being fed to a motor is the fuel it needs to operate efficiently. MCE Gold monitors three phases of voltage and current. It alerts you when an unhealthy condition exists with the power coming into your asset.
All connections, components, and cables between the MCC and the motor must be resistively balanced. Potential problems occur when loose or corroded connections are introduced in a circuit. MCE Gold compares each phase of resistance, current and voltage to ensure perfect balance.
If your facility has or will be following the new NFPA 70E guidelines for Arc Flash protection. The PdMA MTAP devices liminate the need to open cabinet doors on energized equipment.
