Static Contact Resistance

Measuring static contact resistance verifies whether the resistance of current carrying contacts, in particular joints, allows the flow of rated current within specified losses. The resistance depends on contact surface properties which are the connection points on micro-scoping level, the contact pressure and the oxidation of the surface. A temperature increase above the specified limits changes the electrical contact surface properties which then leads to an increase of losses. This self-accelerated process can develop constantly over years until it accelerated dramatically at the end. Typical resistance values are between 10 to 100 μΩ.

이 솔루션의 이점

Prevent Subsequent Faults

Discover creeping contact resistance increase problems long before these problem areas would lead to an electric fault.

Powerful integrated supply

The integrated power supply can output a highly accurate, digitally generated output signal of up to 2.4kW.

High measurement accuracy

Using four measurement ranges, CIBANO 500 can accurately determine contact resistances with an accuracy of better than 1 µΩ.

기타 솔루션

CPX 200

CPX 200 verifies the operation time, synchronization, and contact timing of circuit breakers with a single setup. The motor can be supplied with up to 70V AC / 125V DC from the CPX 200.
CPXpert enables phase-by-phase or interrupter-by-interrupter comparisons within each phase.