Re­li­able mo­tor-drive unit with in­te­grated record­ing of op­er­at­ing data

DEMM Engineering & Manufacturing - - MOTORS & DRIVES -

Maschi­nen­fab­rik Rein­hausen (MR) is the global mar­ket leader for power trans­former con­trol with tap chang­ers. A key com­po­nent for re­li­able op­er­a­tion of the tap changer is the Tap­mo­tioned mo­tor-drive unit, which has been in­stalled over 100,000 times since its 1997 launch. The new Tap­mo­tioned ISM com­bines state-of-the-art au­to­ma­tion so­lu­tions with re­li­able drive tech­nol­ogy.

The Tap­mo­tioned ISM is fit­ted with ISM tech­nol­ogy de­vel­oped by MR. ISM – In­te­grated Smart Mod­ule -– is the new stan­dard­ised hard­ware and soft­ware plat­form used for all MR au­to­ma­tion so­lu­tions. It par­tic­u­larly suits the spe­cial con­di­tions in the elec­tri­cal en­ergy tech­nol­ogy field.

It en­sures re­li­able op­er­a­tion of the on-load tap-changer en­abling all rel­e­vant op­er­at­ing data of the power trans­former to be an­a­lysed and recorded, in­clud­ing mon­i­tor­ing of the tap changer, tem­per­a­tures, sig­nals from the mo­tor-drive unit and the sta­tus of the protective de­vices and eval­u­at­ing trans­former utilisation.

Data can be trans­ferred di­rectly to the con­trol sys­tem us­ing IEC 61850-com­pli­ant meth­ods, re­duc­ing the amount of wiring needed dur­ing in­stal­la­tion and cut­ting costs over a con­ven­tional con­nec­tion method. An in­te­grated web server dis­plays the data negat­ing the need to in­stall ad­di­tional soft­ware packages for vi­su­al­i­sa­tion and pa­ram­e­ter­i­sa­tion. The val­ues mea­sured by the ISM are en­crypted and can be ac­cessed any­where us­ing all stan­dard web browsers. This means in­creased op­er­a­tional re­li­a­bil­ity al­low­ing early de­tec­tion of in­ci­dents and fast di­ag­no­sis of er­rors. Costs are also re­duced as main­te­nance work is done in a tar­geted man­ner based on the con­di­tion of the sys­tem. With a large trans­former f leet and sites spread over an ex­ten­sive area, the in­tel­li­gent mo­tor-drive unit saves a lot of trav­el­ling and valu­able work time.

The Tap­mo­tioned ISM mo­tor-drive unit is a cost-ef­fec­tive, prac­tice-ori­ented so­lu­tion eas­ing both op­er­a­tional man­age­ment and as­set man­age­ment. The mod­u­lar de­sign al­lows the sys­tem to be ex­tended to suit in­di­vid­ual needs, and equip­ment can be adapted to fu­ture tasks. ISM pro­vides the foun­da­tion for in­te­grated mon­i­tor­ing of trans­form­ers with the TESSA f leet mon­i­tor­ing sys­tem mean­ing rel­e­vant peo­ple have a clear over­view of all data at all times – whether a sin­gle trans­former or an en­tire f leet. ISM can be retro­fit­ted quickly and eas­ily on all ex­ist­ing Tap­mo­tioned mo­tor-drive units di­rectly in the mo­tor­drive unit or in a sep­a­rate con­trol cabi­net.­quiry #150521.

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