Eaton Ulusoy HMH24-02 User manual

Ulusoy HMH24-02
Transformer Protection Switchgear
(LBS Compound with Fuse)
www.eaton.com

Table of Contents
TRANSPORTATION INSTRUCTIONS.....................................................................................................1
STORAGE INSTRUCTIONS......................................................................................................................2
PREPARING THE SWITCHGEARS FOR INSTALLATION......................................................................2
INTRODUCTION OF SWITCHGEAR.........................................................................................................3
DIMENSIONS.............................................................................................................................................4
CHECKINGS BEFORE ENERGIZING THE SWITCHGEARS....................................................................5
TEST TO BE CARRIED OUT BEFORE ENERGIZING SWITCHGEARS..................................................5
INDOOR INSTALLATION...........................................................................................................................6
INSTALLATION OF BUSBARS.................................................................................................................7
ENERGIZING THE SWITCHGEAR............................................................................................................11
OPERATING INSTRUCTIONS.................................................................................................................12
INSTALLING PADLOCK............................................................................................................................16
SAFE USE................................................................................................................................................16
TROUBLESHOOTING..............................................................................................................................17

Transportation Instructions
Transportation with Forklift
Transportation with Sling
Transportation on Pipes
Roll on the pipes!
Carry with palette!
Max. 90°
Remove the bolts which mounts the switchgear to the palette.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 1

70°
-40°
Preparing the Switchgears for Installation
Remove the bolts which mounts the switchgear
to the palette.
Disassemble the top sheet metal.
Disassemble the lifting plates.
Pull out the front door of the switchgear.
f
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Storage Instructions
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Introduction of Switchgear
1Switchgear Type Label
2Switchgear Details
3Switchgear Process Order /
Flowchart
4Spring Charging Operating Hole
5Earthing Switch Operating Hole
6On / Off Buttons
7Internal Lighting Buttons
8Padlock Housing
9Indicator
1MV Fuses
2MV Cable Terminals
3Earthing Switch
4MV Cable Clamps
5Earthing Bar
7
4
1
3
6
5
8
9
Single line scheme
2
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 3
View of cable connection terminal
4
5
1
2
3

Dimensions
Internal side view
Top view
Internal front view
Side view Front view
4 Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com
1200
960
1900
1800
240
263 222 222 254
260

HMH24-02 Checkings Before Energizing the Switchgears
HMH24-02 Test to be Carried out Before Energizing Switchgears
Place the switchgear front door.
Check if there are any foreign objects within switchgears.
Check the connection points of switchgears.
Ensure that toroid current transformers are connected properly, if any.
Ensure that front door is placed rmly.
If the front door is not placed rmly, operating handle /lever cannot be inserted.
Operating load break switch and earthing switch a few times.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 5
Operating Hole
Earthing Switch
Padlock Facility
LBS and Earthing Switch
Mimics (indicators)
ON (I)
Button
OFF (0)
Button
Operating Hole
for Spring Charging

DC Lightning
Remote control
socket
HMH24-02 LV Board Control Panel of Switchgears
Voltage Indicator
Indoor Installation
Safety distances
Front view
Top view
Side view
Cable
Channel
Wall
Wall
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Top view
Side viewFront view
Cable channel
Cable channel
437
150
500
300
600
550
200
300
450 550
300
1800
100
100
Wall
Wall
100

Installation of Busbars
Remove the bolts, spheres and replace the bars. Put the bolts and tighten spheres again, torque value to
be checked (50Nm).
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 7

Connecting the Switchgears
Fixing the Switchgears
Use the default connection equipments M8x20mm bolts to connect the swithcgears together.
The connection points are located on side part of the switchgears. Side cover of the switchgears are mounted
for the rst and the last unit.
Remove the cable clamps and bottom sheet of the switchgear. Then use 4 xing holes at the bottom of the
switchgear. After xing the switchgear on the oor. Re-install the bottom metal sheet and cable clamps.
8 Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com

After connecting the busbars, put the top metal
sheet onto its place.
Cable up to 240mm² cross section can be connected
easily. Start from L1 Phase.
Remove the bottom sheet completely.
Use the default connection equipment M8x20mm
bolts to connect U-earthing coppers. Connect the
earthing cable to the rst and the last switchgear's
earthing bar.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 9
Busbar connection
Firstly put the fuse into the lower contact of L1.
Secondly, place the upper contact.
1 2

Cable Entrance
Auxiliary supply cable entrance is located
on side part of the LV Panel.
You can connect the auxiliary supply cable to the rst or the last switchgear of the set.
Follow the wiring scheme of switchgear to know how to connect Aux. supply circuit.
Supplying Auxiliary Circuit
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Connect the cable to L1 (inner) phase. Torque with
50Nm. Put the bottom sheet and close the cable
clamps. After that apply the same prosedure to L2
and L3.
Prepare the cable termination.

Ensure that you have correct auxiliary power supply.
The options are:
220 VAC/DC
110 VAC/DC
48 VDC
24 VDC
125 VDC
After the connection of auxiliary supply, use the default
4x1,5 TTR LV cable with male to distribute supply to other
switchgears in the set. Connect the cable from X1 to other
X1 socket.
Energizing the Switchgear
Voltage Indicators
Earthing Switch Open
Load Break Switch
(LBS) Open
Load break switch and earthing switch must be open. (See operation instructions section.)
Incoming Unit: Indicator is light is on when the cables are energized.
Outgoing Unit: Indicator light have to be on when the LBS is closed.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 11

PHASE CONFORMITY TEST
CABLE TEST (when needed)
Lamps stay dim if phases are compliant.
Lamp lights up if phases are not compliant.
(Test device is not delivered with switchgears.)
You can use simple AVO meter as well/
Voltage indicator lamps must light when MV cables
are energized.
Serial Light
Open LBS.
Close earthing switch.
Open switchgear front door. Place cable test
device. Reopen earthing switch.
Perform required measurements.
Outgoing Switchgears
In order to check cable faults.
Open LBS.
De-energize the switchgear from the previous center and
earth the cables.
Close earthing switch of the switchgear.
Open switchgear front door.
Place cable test device.
After test close the door.
Reopen earthing switch.
Perform required measurements.
Incoming Switchgears
In order to check cable faults.
Voltage Indicator
••
•
• •
••
•
•
•
•
•
Operation Instructions
Manual use and front view
Use the lever as shown in order to operate
the earthing switch, and charging the spring.
12 Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com

Operation Instructions
Earthing Switch
After switchgear front door is closed:
Earthing switch closed, closing spring idle (LBS open),
switchgear front door closed.
When starting after assembly works are
completed:
Earthing switchopen, closing spring idle (LBS open),
switchgear front door open.
OPENING THE EARTHING SWITCH:
Place the control arm in earthing switch control
housing as shown, and rotate in arrow direction.
Position after the earthing switch is opened:
Earthing switch open, closing spring idle (LBS open).
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 13

Load Break Switch maneuvers
CLOSING THE EARTHING SWITCH:
Place the control arm in earthing switch control
housing as shown, and rotate in arrow direction.
Position after the earthing switch is closed:
Earthing switch closed, closing spring idle (LBS open).
INSTALLING THE CLOSING SPRING:
Place the installation arm to installation housing as
shown, and rotate in arrow direction.
Ensure that installation sound is heart when installing
the closing spring.
If there is a spring installation motor on the
switchgear, spring will be installed automatically when
LV fuses are closed.
After the closing spring is installed:
Earthing switch open, closing spring installed (LBS open).
Operation Instructions
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CLOSING THE LBS:
Press the off button to close the LBS. Or plug the
remote control cable delivered with the switchgear
group to remote control socket, and press the off
button.
Position after the LBS is closed:
Earthing switch open, opening spring installed LBS
closed.
OPENING THE LBS:
Press the on button to open the LBS.
Or plug the remote control cable delivered with the
switchgear group to remote control socket, and press
the on button.
Position after the LBS is opened:
Earthing switch open, LBS open, closing spring idle.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com 15

Installing Padlock
Locking with padlock when Earthing
Switch is closed and LBS is open:
In order to install the padlock, push the padlock pin
up and closed the earth control housing, and install
the padlock while the pin is up.
Locking with padlock when Earthing
Switch is open and LBS is open:
This lock is used in order to prevent earthing
switch from closing when there is energy in input
switchgears.
Do not operate LBS, if earthing switch is closed.
Do not operate earthing switch, if LBS is closed.
They are interlocked for user safety.
Safe Use
Switchgear front door can only be placed and removed when the earthing switch is in closed position.
16 Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse) September 2020 www.eaton.com

Troubleshooting
Voltage indicator does not work.
Voltage indicator lamp failure.
Voltage indicator input cable failure.
For incoming switchgear: MV cables are not energized.
For outgoing switchgear: Check the LBS.
Front door of switchgear does not open/
close.
Check the earthing switch.If the earthing switch is open,
close the earthing switch.
The earthing switch does not open.
Check the front door of switcghear. Shell be closed properly.
Remove the front door of the switchgear and operate the earthing
switch.
Double check ES contact lubricating.
LBS can not closed.
Check the earthing switch if it is closed. Then you need to open.
LBS does not work with electrical
commands.
Check the LV cable connections.
Check the LV fuses.
Check the earthing switch.
Check the DC auxilliary supply.
Check the DC auxilliary supply polarity.
Please ensure that the switchgear is not fully manuel.
Charging motor does not work.
Check the low voltage cable connections
Check the low voltage fuses
Check the earthing switch
Check the motor supply
Check the motor supply polarity
Spare Part Contact with sales department.
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© 2020 Eaton
All Rights Reserved
September 2020
Ulusoy Elektrik Imalat Taahhut ve Ticaret A.S.
1.OSB Oguz Cad. No:6 Sincan
Ankara, 06935 TURKEY
ulusoy[email protected]
www.eaton.com
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