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

Description of settingsData typeThe number and type of settings vary according to thefunctions. However, all the data are part of a limitednumber of categories:c physical variables: electrotechnical variables, angles,time delays...c index: unsigned whole number which representsthe value of a choice in a predetermined list; the typeof tripping curve for a phase overcurrent protectivedevice is encoded as follows:0 definite time1 standard inverse time2 very inverse time3 extremely inverse time4 ultra inverse timeThe settings are described, function by function, in the«Metering and protection functions» manual.Example: the phase overcurrent function is functionnumber F01, it includes several relays with thefollowing parameters:1-type of curve (0...3),2-Is setting (A),3-time delay T (x 10 mx).The data zone of the “remote reading and remote setting reply frame”has the structure described below for the reading of 9 words starting at theaddress D000h :D000hB15 B14 B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00function code = 01 relay number = 01type of curve = 00 00 (MSB)type of curve 00 00 (definite time)Is setting = 00 00 (MSB)Is setting = 00 64 (set to 100 A)time delay = 00 00 (MSB)time delay = 00 0A (time delay set to 10 x 10 = 100 ms)00 00 (MSB)00 00 (values which follow are not significant and are initialized to 0)The data zone of the remote setting “reply frame” is the same as the structuredescribed below D100h:Data formatAll the settings are transmitted in the form of signed 32-bit whole numbers (encodingas two’s complement).Special setting valuesA value equal to 7FFF FFFFh means that the setting is outside its range of validity.To inhibit a protection, the inhibition parameter is simply set to 8000 0000h, with theother parameters remaining unchanged. If all the setting values are read at 8000000h, this means that the protection function concerned is inhibited.Example: the protection is inhibitedB15 B14 B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00function code = 01 relay number = 01type of curve = 80 00 (MSB)type of curve 00 00 Function inhibitedIs setting = 80 00 (MSB)Is setting = 00 60 Function inhibitedtime delay = 80 00 (MSB)time delay = 00 00 Function inhibited00 00 (MSB)00 00 (values which follow are not significant and are initialized to 0)Example: the protection setting is outside the rangeB15 B14 B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00function code = 01 relay number = 01type of curve = 00 00 (MSB)type of curve 00 00 (definite time)Is setting = 7F FF (MSB)Is setting = FF FF outside rangetime delay = 00 00 (MSB)time delay = 00 0A (time delay set to 10 x 10 = 100 ms)00 00 (MSB)00 00 (values which follow are not significant and are initialized to 0)Jbus/Modbus communication31