Sepam - HV/MV Protection and control units (ENG) - Trinet

Capacitor switch open / closed matching supervisionPrincipleBlock diagramThe open / closed matching supervision function uses2 inputs in accordance with the connection schemebelow:ESTORAIxIy&≥1t 0Tx = 200 ms≥ 1reset&&IyIx“open” position“closed” positionConnection for tripping by undervoltage release coil.A position switch discrepancy is detected when the 2inputs Ix and Iy are not activated (not closed or open)or are activated at the same time (closed and open).O24 outputclosinginhibition?CONTROLx?messageremote indicationKTSxOperationWhen the function detects a position discrepancy:c the capacitor switch failure output O24 is activated,c the message “?CONTROLx?” appears on thedisplay unit,c a remote indication KTS60, KTS61 or KTS62is transmitted by the communication link,c closing control is inhibited.The T34, T35 and T36 time delays ensures therecovery of the open / closed information when there isa change in the position of the switching device.switch switch time delay remote messageinput closed input open indicationcapacitor 1 I23 I24 T34 KTS60 ?CONTROL 1?capacitor 2 I25 I26 T35 KTS61 ?CONTROL 2?capacitor 3 I27 I28 T36 KTS62 ?CONTROL 3?Commissioningc Ensure that the inputs are connected in accordancewith the scheme.c By default, the T34, T35 and T36 time delays are setto 200 ms. They should be extended to mask randomswitching, recommended setting = 2 s.The setting is made:c using the pocket terminal(time delay item in the program logic menu),c via the communication link.1/36 Control and monitoring functions