MR VACUTAP RMV-II User Manual

Name: MR VACUTAP RMV-II
Brand: MR
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72 pages

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ON-LOAD TAP-CHANGER

VACUTAP

RMV-II

OPERATING INSTRUCTIONS

2159612/03 EN

Table of Contents3
Introduction6
Validity6
Manufacturer6
Completeness6
Safekeeping6
Notation Conventions7
Hazard Communication System7
Information System8
Instruction System8
Safety10
Appropriate Use10
Fundamental Safety Instructions11
Personnel Qualification13
Personal Protective Equipment14
Product Description16
Scope of Delivery16
On-Load Tap-Changer16
Function Description for On-Load Tap-Changer16
On-Load Tap-Changer Design19
Protective Devices22
Motor-Drive Unit23
Function Description23
Motor-Drive Unit Design23
Protective Devices in the Motor-Drive Unit24
Monitoring System (VIM)25
Function Description of Monitoring System25
Monitoring System Displays and Controls26
Dehydrating Breather26
Packaging, Transport and Storage28
Packaging28
Suitability28
Markings28
Transportation, Receipt and Handling of Shipments29
Unpacking Shipments and Checking for Transportation Damages30
Things to Note When Putting Back into Storage30
Fitting On-Load Tap-Changer on Transformer31
Preparatory Work31
Fitting the On-Load Tap-Changer31
Connecting the Tap Winding and On-Load Tap-Changer Take-Off Lead32
Fitting Motor-Drive Unit33
Preparatory Work33
Fitting Motor-Drive Unit to On-Load Tap-Changer36
Checks after Assembly37
Manual Check37
Checking Motor-Drive Unit and Monitoring System38
Transformer Ratio Test and DC Resistance Measurement38
Carrying out the Transformer Ratio Test39
Measuring DC Resistance on Transformer39
Drying the On-Load Tap-Changer40
Filling On-Load Tap-Changer with Oil41
Fitting Accessories42
Fitting Dehydrating Breather42
Pressure Relief Device Mprec44
Commissioning at the Transformer Manufacturer's Site45
Checks before Commissioning45
Performing Trial Tap-Change Operations46
High-Voltage Tests on the Transformer46
Transporting Transformer to Installation Site48
Transport with Removed Drive48
Commissioning the Transformer at the Operating Site49
Safety Current Circuits50
Performing Trial Tap-Change Operations50
Switching on Transformer51
Actuating Motor-Drive Unit with Hand Crank52
Monitoring During Operation53
Annual Checks53
Checking Oil Quality53
Checking Motor-Drive Unit54
Checking Return to Starting Position54
Occasional Visual Checks54
Fault Elimination55
General Information55
Fault Elimination Overview56
Monitoring System Displays and Controls57
Overview of Monitoring System Operating Statuses58
Maintenance59
Maintenance Intervals59
Taking On-Load Tap-Changer out of Service60
Draining Oil and Testing Oil Quality60
Investigating Vacuum Interrupters60
External Integrity Check60
Checking Contact Erosion Indicator61
Replacing Vacuum Interrupter62
Checking By-Pass Switch62
Maintaining Motor-Drive Unit63
Maintaining Monitoring System63
Maintaining Dehydrating Breather64
Preparing the On-Load Tap-Changer for Service65
Technical Data66
General Data69
Temperature Range69
Appendix70
Limit Values for Dielectric Strength and Water Content of On-Load Tap-Changer Oil70

Brand	MR
Model	VACUTAP RMV-II
Category	Industrial Equipment
Language	English

MR VACUTAP RMV-II User Manual

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