Details: technical specification for a & ac type rccb tester1) test bench for a type & ac type rccb clause no. 9.9.3.1 - verification of correct operation in case of a continuous rise of residual pulsatingdirect current the test will be performed according to figure 5. the auxiliary switches s1 and s2 andthe rccb will be closed. the relevant thyristor will be controlled in such a manner that current delayangles α of 0°, 90° and 135° are obtained. each pole of the rccb will be tested twice at each of thecurrent delay angles, in position i as well as in position ii of the auxiliary switch s3. for each test, thecurrent will be steadily increased at an approximate rate of 1,4 iδn/30 amperes per second for rccbswith iδn > 0,01 a, and at an approximate rate of 2 iδn/30 amperes per second for rccbs with iδn ≤0,01 a, starting from zero. the tripping current will be in accordance with table 20.clause no. 9.3.3.2 - verification of correct operation in case of suddenly appearing residual pulsatingdirect c
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