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NBIO-21CU 3BSE017427R1 Output module

Explanation of parameters: RunOnCPU defines the processing unit which runs the function. ParSet 4..1 Parameter for determining in which set of parameters a particular function is active (see Section 5.11.).Trip 01-08 defines the tripping channel activated by the tripping O/P of the function (matrix tripping logic). Trip 09-16 corresponds to Trip 01-08 (providing tripping unit fitted). Trip 17-24 corresponds to Trip 01-08 (providing tripping unit fitted). Trip 25-32 corresponds to Trip 01-08 (providing tripping unit fitted). CurrentInp defines the current input channel. Only three-phase c.t’s can be set and the first channel (R phase) of the group of three selected must be specified. VoltageInp defines the voltage input channel. Only three-phase v.t’s can be set and the first channel (R phase) of the group of three selected must be specified. I-Setting Pick-up setting for tripping. Angle Characteristic angle. Delay Delay between pick-up and tripping. tWait Time allowed for the directional decision to be received from the opposite end in a blocking scheme. MemDirMode determines the response of the protection after the time set for memorising power direction:
trip
block. MemDuration Time during which the power direction last determined remains valid.

Setting instructions 

Settings: Pick-up current I-Setting Characteristic angle Angle Delay Delay Time allowed for receipt of signal tWait Response at the end of the memorised power direction time MemDirMode Time during which the memorised direction is valid MemDuration Pick-up value I-Setting “I-Setting” must be chosen high enough to prevent false tripping or alarms from taking place and low enough to reliably detect the minimum fault current. The setting must be sufficiently above the maximum transient load current and allow for:
c.t. and relay inaccuracies
the reset ratio. The maximum transient load current has to be determined according to the power system operating conditions and take account of switching operations and load surges.

Receive Input for the signal from the opposite end of the line: T: not used xx: all binary inputs (or outputs of protection functions). Ext Block F: not blocked xx: all binary inputs (or outputs of protection functions). Trip Tripping signal. Start Pick-up signal. Start R R phase pick-up signal. Start S S phase pick-up signal. Start T T phase pick-up signal. MeasFwd signals measurement in the forwards direction. MeasBwd signals measurement in the backwards direction.