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BN034794AE

ZP-BN01E

MTO106

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Summary of Contents for MTO106

Page 1: ...WWW MEGGER COM User s Manual Art No ZP BN01E Doc BN034794AE V01a 2018 MTO106 Transformer ohmmeter...

Page 2: ......

Page 3: ...iptions or software listings that disclose source code are for informational purposes only Reproduction in whole or in part to create working hardware or software for other than Megger Sweden AB produ...

Page 4: ...enance 9 3 Instrument description and Accessories 10 3 1 Panel 10 3 2 The display 11 3 3 Accessories 11 Included 11 Optional 11 4 Setup and operation 12 4 1 Preparations 12 4 2 Testing Single and Dual...

Page 5: ...BN034794AE ZP BN01E MTO106 5...

Page 6: ...program To help locate the presence of defects in transformers such as increased contact resistance in terminal connections and tap changers The instrument can also be used for general resistance mea...

Page 7: ...lowing shipment Our liability is specifically limited to replacing or repairing at our option defective equipment This warranty does not include batteries lamps or other expendable items where the ori...

Page 8: ...ground pin Do not defeat the safety ground in any manner The equipment must be connected to a grounded mains outlet 3 Ground lead The first connection made and last removed is the connection of instr...

Page 9: ...that are not intended for use together with the instrument Maintenance 1 DISCONNECT the MAINS plug before any cleaning or maintenance 2 Refer all servicing to Megger authorized personnel Do not attem...

Page 10: ...display 5 DISCHARGE Built in discharge circuit safely discharges the test object when test is completed LED and audio sig nal indicate the charging status 6 100 240V 5A 50 60Hz Mains input and fuse bo...

Page 11: ...proach 100 only very slowly Note If dual channel measurement is selected the above values are duplicated 3 3 Accessories Included Test lead black with banana connector and Kelvin clamp 10m 33ft 1 GC 3...

Page 12: ...current switch is set to OFF 2 Connect the Kelvin type test leads to the MTO106 see figures below The leads marked Generator to the CUR RENT OUTPUT terminals of corresponding colour and the leads mark...

Page 13: ...e indication of discharging 4 3 Testing Delta winding resistance Testing Delta winding resistance may be a very time consuming procedure in particular LV winding deltas The correct balance time can ta...

Page 14: ...with only small deviations between different tap position changes Fig 1 shows a typical behavior for a transformer tap changer in as new condition Fig 5 1 Winding resistance vs tap position for a new...

Page 15: ...cording to the method below 1 Run a normal winding resistance test accord ing to the instructions in section 4 2 Testing Single and Dual windings on page 12 2 Swap the terminals preferably by swapping...

Page 16: ...leads switched 3 Sense leads not connected 4 Current leads shorted 1 Increase test current 2 Check sense leads 3 Check sense leads 4 Check current leads U 0 06 mV 0 0 A No current loop current leads n...

Page 17: ...BN034794AE ZP BN01E MTO106 17 7 Specifications...

Page 18: ...mensions W x D x H 360 x 304 x 194 mm 14 2 x12 x 7 6 Weight 7 3 kg 16 lbs excl cables Display 4 inch backlit monochrome alphanumerical display Test leads 2 x 10 m 33 ft with banana connectors and Kelv...

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Page 20: ...Equipment Fiber Optic Test Equipment Ground Resistance Test Equipment Insulation Power Factor C DF Test Equipment Insulation Resistance Test Equipment Line Testing Equipment Low Resistance Ohmmeters...

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