Related Manuals for Megger BN-19000
Summary of Contents for Megger BN-19000
- Page 1 MTO106 Transformer ohmmeter User’s Manual 1.888.610.7664 www.calcert.com sales@calcert.com Art No. ZP-BN01E Doc. BN034794AE V01a 2018...
- Page 2 © 2018, Megger Sweden AB. All rights reserved. The contents of this manual are the property of Megger Sweden AB. No part of this work may be reproduced or transmitted in any form or by any means, except as permitted in written license agreement with Megger Sweden AB. Megger Sweden AB has made every reasonable attempt to ensure the completeness and accuracy of this document.
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Page 3: Table Of Contents
Contents 1 Introduction ............. 6 1.1 Product description ........6 Features and benefits ..........6 Applications ..............6 1.2 Winding resistance testing ......6 1.3 Receiving instructions ........7 1.4 Warranty .............7 Warranty repair ............7 2 Safety ............. 8 2.1 General ............8 Symbols on the instrument .......... -
Page 4: Introduction
1 INTRODucTION Introduction 1.1 Product description 1.2 Winding resistance testing The MTO106 transformer ohmmeter is an easy-to-use, line-operated instrument specifically designed for safe Transformer winding resistances are measured in and accurate field measurement of winding resistance the field in order to check for abnormalities due to in smaller transmission and distribution transformers. -
Page 5: Receiving Instructions
Products supplied by Megger are warranted against check the equipment received against the packing list to defects in material and workmanship for a period of ensure that all materials are present. Notify Megger of any one year following shipment. shortage. -
Page 6: Safety
The unit can also be returned to quickly in case of a problem. The instrument Megger at any time at no charge for should be operated only from the type of power the disposal. -
Page 7: Maintenance
Maintenance DISCONNECT the MAINS plug before any cleaning or maintenance. Refer all servicing to Megger authorized personnel. Do not attempt to service the instrument yourself. If you attempt to service the instrument the warranty is no longer valid. -
Page 8: Instrument Description And Accessories
3 INSTRuMENT DEScRIPTION AND AccESSORIES Instrument description and Accessories 3.1 Panel 1. R1 SENSE 7. RANGE R2 SENSE Selector for test currents. Voltage input 8. ON/OFF 2. CURRENT OUTPUT Toggle switch ON / OFF for generation of test cur- 1 mA - 6 A, 48 VDC rents. -
Page 9: The Display
3 INSTRuMENT DEScRIPTION AND AccESSORIES 3.2 The display 3.3 Accessories Included Test lead black with banana connector and Kelvin clamp, 10 m (33 ft) 1 Gc-32310 Test lead red with banana connector and Kelvin clamp, 10 m (33 ft) 1 Gc-32312 Ground lead, 5 m (16 ft) 2.5 mm²... -
Page 10: Setup And Operation
Connect the Kelvin-type test leads to the MTO106, see figures below. ▪ The leads marked "Generator" to the "CUR- use the Megger supplied safety ground lead to connect the MTO106 protective conductor terminal directly to RENT OUTPUT" terminals of corresponding local station earth (Ground). -
Page 11: Testing Delta Winding Resistance
4 SETuP AND OPERATION 4.3 Testing Delta winding tions" on page 12 are complete, the mains power cord is connected to the power outlet. resistance Set the "RANGE"selector to the required test current, as high as possible but not more Testing Delta winding resistance may be a very time than 10% of rated current (power transform- consuming procedure, in particular LV winding... -
Page 12: Application Examples
5 APPLIcATION EXAMPLES Application examples 5.1 Testing transformers 5.2 Temperature correction with tap changers cold winding resistance measurements are normally converted to a standard reference temperature equal The tap changer allow ratio to be increased or to the rated average winding temperature rise plus decreased. -
Page 13: Manual Demagnetization Of A Transformer
5 APPLIcATION EXAMPLES 5.3 Manual demagnetization of a transformer The MTO106 does not include and automated demagnetization feature and demagnetization, if deemed necessary, must be performed manually according to the method below. Run a normal winding resistance test accord- ing to the instructions in section "4.2 Testing Single and Dual windings"... -
Page 14: Troubleshooting And Calibration
6 TROuBLESHOOTING AND cALIBRATION Troubleshooting and Calibration 6.1 Troubleshooting Resistance Voltage Current value Probable cause Action value value 1. Increase test 1. Too low test current current 2. Sense leads switched 2. check sense leads u < 0.06 close to set value 3. -
Page 15: Specifications
7 SPEcIFIcATIONS Specifications Specifications Specifications are valid at nominal input voltage. Specifications are subject to change without notice. Environment Application field The instrument is intended for use in high-voltage substations and industrial environments. Temperature Operating -20°c to +50°c (-4°F to +122°F) Storage &... -
Page 16: Specifications
▪ Insulation Power Factor (C&DF) Test Equipment worldwide. ▪ Insulation Resistance Test Equipment Megger is certified according to ISO 9001 and 14001. ▪ Line Testing Equipment Megger is a registered trademark. ▪ Low Resistance Ohmmeters ▪...
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