Title: 40 Bender brukermanual.pdf.pdf
The frequency response of the equipment can be set for a linear frequency re- sponse (up to the maximum frequency of 2000 Hz) if used for fire protection or for a frequency response in accordance with IEC 60990 for personnel pro- tection. For plant protection, the residual current is measured up to the rated system frequency. The figure below shows the corresponding frequency res- ponse.RCMS460-490_D00067_03_M_XXEN/12.201765OperationFrequency response(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:7)(cid:3)(cid:4)(cid:5)(cid:6)(cid:8) (cid:5) (cid:7) (cid:19) (cid:14) (cid:23) (cid:15) (cid:13) (cid:20) (cid:6) (cid:5) 1 (cid:20) (cid:13) (cid:25)(cid:8)(cid:9)(cid:10)(cid:11)(cid:12)(cid:11)(cid:13)(cut-off frequency)Response factor =I(d)I(dn)I(d) I(dn)Residual current IΔ: r.m.s. value currently measured Rated residual operating current IΔn: Set response value7. CT Set the type of measuring current transformer. Type A