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The high power amplifier unit CMS 252 allow the testing of even the highest burden electromechanical relays of all types (overcurrent, undervoltage, ground fault relays, etc.).
The two-phase CMS 252 provides dual mode amplifiers that can independently function either as a voltage source or as a current source (user selectable).
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Application example CMS 252
Required voltage waveshape for an Alstom CDG 16 earth fault relay, plug-setting 0.2 A, test current: 2A
Amplifier CMS 251/252 - (348.18 kb, Technical Data)