MR TAPGUARD 260 User manual
Monitoring System
TAPGUARD® 260
Quick Reference Guide
2349487/01 EN
1 Introduction
Maschinenfabrik Reinhausen 20132 2349487/01 ENTAPGUARD® 260
Introduction
This quick reference guide contains information for quick start-up of the de-
vice. It does not provide comprehensive operating instructions.
Manufacturer
The product is manufactured by:
Maschinenfabrik Reinhausen GmbH
Falkensteinstraße 8
93059 Regensburg, Germany
Tel.: (+49) 9 41/40 90-0
Fax: (+49) 9 41/40 90-7001
E-mail: [email protected]
Further information on the product and copies of this technical file are availa-
ble from this address if required.
Completeness
This technical file is incomplete without the supporting documentation.
Supporting documents
The following documents apply to this product:
▪ Operating instructions
▪ Quick reference guide
▪ Connection diagrams
Also observe generally valid legislation, standards, guidelines and specifica-
tions on accident prevention and environmental protection in the respective
country of use.
1
1.1
1.2
1.3
2 Product description
Maschinenfabrik Reinhausen 2013 32349487/01 EN TAPGUARD® 260
Product description
This chapter contains an overview of the design and function of the product.
Operating concept
The monitoring system is operated by keys for parameterization and configu-
ration on the front panel of the device. Alternatively, configuration is also
possible via the TAPCON®-trol visualization software.
The monitoring system is equipped with a key lock to prevent unintentional
operation. To activate or deactivate, press the and keys
simultaneously.
Manual mode
Manual mode is an additional safety feature of the monitoring system and
protects the parameters from being unintentionally changed.
The following activities cannot be performed until you have activated manual
mode:
▪ Acknowledging events
▪ Acknowledging maintenance
▪ Changing parameters
You can change the parameters regardless of manual mode via the visuali-
zation software TAPCON®-trol.
To activate manual mode, proceed as follows:
► Press .
ðThe relevant LED lights up.
Manual mode is activated. If no key on the monitoring system has been
pressed after more than 5 minutes, manual mode is automatically deactivat-
ed.
Serial interface
The parameters for the device can be set using a PC. The COM 1 (RS232)
serial interface on the front panel is provided for this purpose. You can use
the connection cable supplied to establish a connection to your PC via the
RS232 or USB port (using the optional USB adapter).
TAPCON®-trol software is needed for parameterization via the serial inter-
face. The software and the related operating instructions are contained on
the CD provided.
2
2.1
2.2
2 Product description
Maschinenfabrik Reinhausen 20134 2349487/01 ENTAPGUARD® 260
Figure 1: Device connection to a PC
3 Mounting
Maschinenfabrik Reinhausen 2013 52349487/01 EN TAPGUARD® 260
Mounting
This chapter describes how to correctly mount and connect the device. Note
the connection diagrams provided.
WARNING Electric shock
Danger of death due to electrical voltage.
► De-energize device and system periphery and lock to prevent switching
back on again.
Installing and wiring temperature sensors
The following sections describe how to install and wire the temperature sen-
sors for the diverter switch oil and the transformer oil.
Connecting temperature sensor for on-load tap-changer oil
A temperature sensor is mounted in the on-load tap-changer head cover in
each on-load tap-changer. You have to perform the wiring in accordance
with the connection diagram that came with the motor-drive unit. Please ob-
serve the following:
Do not loop the temperature sensor connecting leads when laying because
this may cause voltage coupling and result in measurement errors.
To connect the temperature sensor for the on-load tap-changer oil, proceed
as follows:
1. Place the shielding of the sensor connecting lead on the grounding rails
in the motor-drive unit.
2. Connect the sensor connecting lead to the terminals in the motor-drive
unit as shown in the connection diagram.
3
3.1
3.1.1
3 Mounting
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3. Remove the temperature sensor cover on the on-load tap-changer head
cover.
Figure 2: Removing temperature sensor cover
4. Remove the shielding of the sensor connecting lead on the temperature
sensor.
5. NOTICE! Do not place shielding in temperature sensor. Insulate tem-
perature sensor connecting leads using shrink tubing such that the
shielding is no longer exposed. If this is not done, current may flow via
the shielding and the device may be damaged.
Figure 3: Correct insulation of connecting lead shielding
1 Exposed shielding 2 Correctly insulated connecting
lead
6. NOTICE! Guide connecting leads into temperature sensor. Ensure that
the cable entry point is watertight. If not, the temperature sensor may be
damaged.
3 Mounting
Maschinenfabrik Reinhausen 2013 72349487/01 EN TAPGUARD® 260
7. Wire sensor connecting lead in the temperature sensor as shown in the
connection diagram.
8. Close temperature sensor cover.
When you close the temperature sensor cover, make sure that the seal is
correctly positioned and that no connecting leads are wedged in.
9. Ground the temperature sensor housing on the on-load tap-changer us-
ing the grounding cable.
The temperature sensor is connected. Please continue with the next section
to connect the transformer oil sensor.
Connecting temperature sensor for transformer oil
You have to perform the wiring in accordance with the connection diagram
that came with the motor-drive unit.
Do not loop the temperature sensor connecting leads when laying because
this may cause voltage coupling and result in measurement errors.
1. Open the transformer thermometer case.
2. Fill the thermometer case with oil until the heat conduction sensor is
completely immersed in oil.
3. Place the shielding of the sensor connecting lead on the grounding rails
in the motor-drive unit.
4. Connect the sensor connecting lead to the terminals in the motor-drive
unit as shown in the connection diagram.
5. Remove the temperature sensor cover.
6. Remove the shielding for the sensor connecting lead on the transformer
oil sensor.
7. NOTICE! Do not place shielding in temperature sensor. Insulate tem-
perature sensor connecting leads using shrink tubing such that the
shielding is no longer exposed. If this is not done, current may flow via
the shielding and the device may be damaged.
8. NOTICE! Guide connecting leads into temperature sensor. Ensure that
the cable entry point is watertight. If not, the temperature sensor may be
damaged.
9. Wire sensor connecting lead in the temperature sensor as shown in the
connection diagram.
10. Mount the temperature sensor cover.
3.1.2
3 Mounting
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When you close the temperature sensor cover, make sure that the seal is
correctly positioned and that no connecting leads are wedged in.
Checking temperature sensors
After connecting the temperature sensors, check the values measured. To
do so, proceed as follows:
1. Switch on device and wait until the operating screen appears.
2. > Info > Meas. values.
ðMeasured values.
► Compare the "Transf. oil temp." and "OLTC oil temp." measured values
shown with the real values.
Connecting tap-change supervisory control
The tap-change supervisory control is integrated in the tap changer. The
connecting leads are led out through a terminal box on the tap changer
head's pipe connection.
Do not loop the tap-change supervisory control connecting leads when lay-
ing because this can cause voltage coupling and result in measurement er-
rors.
To connect the tap-change supervisory control to the device, proceed as fol-
lows:
1. Remove terminal box cover.
2. Remove connecting lead shielding.
3. NOTICE! Do not place shielding in terminal box. Insulate tap-change
supervisory control's connecting leads with a shrink-fit hose such that
the shielding is not exposed. If this is not done, current may flow via the
shielding and the device may be damaged.
3.1.3
3.2
3 Mounting
Maschinenfabrik Reinhausen 2013 92349487/01 EN TAPGUARD® 260
4. Insert connecting lead through terminal area into terminal box.
Figure 5: Connection of the tap-change supervisory control
5. Wire connecting lead in accordance with motor-drive unit's connection
diagram.
6. Fit terminal box cover.
When you close the temperature sensor cover, make sure that the seal is
correctly positioned and that no connecting leads are wedged in.
Connecting load current measurement
You have to perform the wiring for the load current measurement in accord-
ance with the connection diagram that came with the motor-drive unit. The
following signals can be wired:
▪ 4...20 mA (AD8 card)
▪ 0.2 A, 1 A or 5 A (MI card)
To connect the load current measurement, proceed as follows:
1. Wire load current measurement in accordance with motor-drive unit's
connection diagram.
2. Only with load current measurement via MI card: Remove short-circuit-
ing jumper (see connection diagram, terminals X1:255 and X1:256 in
standard version).
3. Check load current shown on device display by pressing the key in
the main screen.
3.3
3 Mounting
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ðIf, after a minute, a value for the load current is displayed that does
not equal the on-load tap-changer's maximum current, the connec-
tions are correctly wired.
A load current is only displayed when there is a valid signal at the input
used for the load current measurement (> 0 A when measuring via MI card
or > 4 mA when measuring via AD8 card). If there is no valid signal, the
maximum on-load tap-changer current is displayed.
Wiring status relay
The status relay reports the current status of the device. Maschinenfabrik
Reinhausen recommends transferring the signal to your control room. To do
so, proceed as follows:
► Wire status relay IO-X1:01/02/03 to your control room in accordance
with the connection diagram.
3.4
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