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VACUTAP VM Series

MR VACUTAP VM Series User Manual

82 pages

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On-load tap-changer

VACUTAP

Operating Instructions

4360571/02 EN . Selector size RC, RD, RDE

Table of Contents3
Introduction6
Manufacturer6
Completeness6
Safekeeping6
Notation Conventions7
Hazard Communication System7
Information System8
Instruction System8
Safety10
Appropriate Use10
Inappropriate Use11
Fundamental Safety Instructions11
Personnel Qualification13
Personal Protective Equipment14
Product Description15
On-Load Tap-Changer15
Function Description15
Setup/Models16
Nameplate and Serial Number19
Protective Devices20
Drive Shaft26
Function Description26
Design/Versions27
Commissioning32
Commissioning Transformer at Operating Site32
Filling the Oil Compartment of the On-Load Tap-Changer with Insulating Fluid32
Bleeding On-Load Tap-Changer Head and Suction Pipe34
Checking Motor-Drive Unit35
Checking Protective Relay36
Checking Pressure Monitoring Device37
Commissioning the Transformer38
Operation39
Operating the Motor-Drive Unit with the Hand Crank39
Fault Elimination41
Tripping the Protective Relay and Re-Commissioning the Transformer43
Flap Valve in OPERATION Position44
Flap Valve in off Position44
Re-Commissioning the Transformer44
Tripping the Pressure Monitoring Device and Putting the Transformer Back into Operation45
Sensor in the OPERATION Position45
Sensor in the off Position45
Re-Commissioning the Transformer46
Maintenance47
Inspection48
Maintenance Intervals49
Changing the Insulation Fluid51
Moving On-Load Tap-Changer to Adjustment Position51
Removing Horizontal Drive Shaft51
Emptying the Oil Compartment and Oil Conservator53
Filling the Oil Compartment and Oil Conservator with Fresh Insulating Fluid55
Installing Horizontal Drive Shaft58
Centering On-Load Tap-Changer and Motor-Drive Unit59
Performing DC Resistance Measurement on Transformer59
Technical Data61
Technical Data for On-Load Tap-Changer61
On-Load Tap-Changer Properties61
Permissible Ambient Conditions62
Technical Data for Protective Relay63
Special Models of Protective Relay65
Protective Relay with CO Change-Over Contact as Tripping Switch65
Protective Relay with Several Dry-Reed Magnetic Switches66
Technical Data for Pressure Monitoring Device66
Limit Values for Dielectric Strength and Water Content of Insulating Fluids68
Drawings69

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MR VACUTAP VM Series Specifications

General

Brand	MR
Model	VACUTAP VM Series
Category	Controller
Language	English

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Table of Contents

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