TWS DC high-speed circuit breaker tester, using a batery of super capacitors as a probing current source, was firstly established in Europe in the early 2000s by KOLEN. Currently, the mobile TWS tester features with output current capacity of up to 8 kA.
It is powered from single-phase 230 V AC power supply with 16 A protection. TWS is suitable for testing electromagnetic, latch and ultra-fast high speed DC circuit breakers.
Various probing current waveforms are available including the normalized waveform with a rate of rise of 200 A / s.
Tester TWS work together with dedicated PC software which allows full control on testing procedures and is capable of creating easy to reuse test reports.