www.ulusoyelectric.

com
www.ulusoyelektrik.com.tr

Medium Voltage Switchgear

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INDEX
INDEX
INDEX
About ........................................................................ 01
Metal Enclosed Modular Switchgear ...................... 02
Metal Clad Switchgear ................................................ 14
RMU (Ring Main Unit) .................................................. 20
Concrete Package Substation ................................... 28
Underground Concrete Package Substation ......... 38
Metallic Package Substations .................................... 42
Ulusoy Elektrik A.S. was founded as an engineering company in 1985 by Sait Ulusoy. As an integrated
manufacturing platform for a wide variety of medium voltage electrical equipments for MV electrical
distribution networks and industrial plants, it has proven Turkey’s dynamic power as a leader in industry
and has been at the forefront of its own sector. Ulusoy Elektrik has become one of the leading players in
the electromechanical industry. Ulusoy Elektrik has undertaken many successful projects by its proven
achievements in the national and international markets, a wide range of high quality products, its sectorial
innovations and service quality.

Ulusoy Elektrik conducts its activities in an area of more than 83.000 m² (56.000 m² of which are indoors)
at the Ankara ASO First Organised Industrial Zone, Temelli Anatolia Organised Industrial Zone and
Indonesia Cikarang Organised Industrial Zone.

With a staff of over 700 qualified employees and over 100 specialist engineers, its carries out all of its
product design, development, and R & D activities on-site.

As a result of major projects, its production capacity and industrial success, Ulusoy Elektrik ranked #364
among “Turkey’s Top 500 Industrial Enterprises”​survey for the year 2017, published every year by Istanbul
Chamber of Industry.

By exporting to more than 70 countries, Ulusoy Elektrik has successfully carried out a worldwide
production launch of its medium voltage electricity distribution equipments.

Ulusoy Elektrik is a publicly traded company listed on Istanbul Stock Exchange Stars Market as of
November, 2014.

Eaton has completed the acquisition of %82,275 of the Ulusoy Elektrik A.S. shares as of April 15, 2019.
Eaton, a global power management company with 2018 sales of $21.6 billion, 99,000 employees
worldwide, and customers in more than 175 countries, acquired a controlling interest in Ulusoy Elektrik
from the Ulusoy family.

1
HMH SERIE
HMH SERIES

HMH
ES
MODULAR
MODULAR
SWITCHGEARS

H SERIES
HMH SE
HMH Series Metal Enclosed Modular Switchgears;

These are the medium voltage switchgears designed for use in secondary distribution systems up to 40,5kV, in compact
kiosk type transformer substations, in industrial facilities and indoor spaces. All functional units which may be required in a
switching and distribution centre can be easily installed side by side. Switchgears which are produced in the factory with all
routine and type tests conducted, can be commissioned in a very short period – practically and safely.

Isolating and breaking processes are carried out in SF6 gas environment and the busbars compartment in air. Thanks to this,
a safe isolating and breaking process is ensured and dimensions have been minimised. HMH Series Modular Switchgears, can
be easily and safely used in package type transformer stations due to their compact dimensions.
LBSH LOAD BREAK SWITCHES
LBSH Series Load Break Switches are used in HMH Series Metal Enclosed Modular
Switchgears.

The active sections of the Load Break Switches are present in SF6 gas ambiance
closed with sealed pressure system inside the epoxy resin frame.

During its normal operation lifespan of 20 years, it does not require any gas refill
nor any maintenance.

LBS has three poles and two positions. The earthing switch which quickly closes
at the time of short circuit is in SF6 gas environment and inside a resin frame.
This feature of the LBSH load break switches offer an additional safety feature
for the operating staff.

Thanks to the mechanical and electrical interlocking systems between the Load
Break Switch and the Earthing Switch, possibility of a wrong-manoeuvre is
prevented by these interlocking systems.

USFB CIRCUIT BREAKERS

USFB Series circuit breakers consist of three pieces of independent poles which
contain the fixed and moving contacts where the arc extinguishing process
realises and filled with SF6 gas by impermeability-guaranteed sealed system.

Breaker mechanisms works on the principle of releasing the stored energy of

a spring. The mechanism can be operated motorized or manually by means of
the leverage which comes with the breakers.

The USFB circuit breakers with re-closing feature offer the ability to make
various mechanical and electrical interlocks by use of the switch disconnector
or load break switch.

The SF6 circuit breakers used in HMH Series Switchgears are designed,
manufactured and tested in Ulusoy Elektrik factory.

MODULAR
4
SW
 METAL ENCLOSED MODULAR SWITCHGEARS
HMH Series Modular Switchgears consist of 4 main compartments. These
compartments are separated from each other by means of metal frames;

1. Cable connection and switching section

2. Busbar section
3. Operating mechanism section
4. Low voltage section

CABLE CONNECTION and SWITCHING SECTION

Network cables are connected to the connection terminal located under
the earthing switch. In this section, load break switch, switch disconnector,
circuit breaker and earthing switch are located as the switching element
depending on the cubicle type. MV fuses and striker pin transmission
mechanisms are located in fuse-switch combination.

Switch disconnector or Load Break Switch within the epoxy resin frame
are completely separated from the busbar section and cable connection section by means of a sheet metal plates.

Single-core cables up to 240 mm can easily be connected to this section. Sleeves and braces are present at the cable
entrance in order to allow the cables to stand firm inside the cubicle. The earthing switch must be closed in order to
access this section.

BUSBAR SECTION
When HMH Series Modular Switchgears are installed side by side, the busbar connection between the Switchgears is
conducted by 3 pieces of busbars with proper sections. Access to busbar section is provided through the top cover of
the switchgear.

OPERATING MECHANISM SECTION

In this section, switch disconnector and/or load break switch, driving mechanism elements of the earthing switch exist.
Optionally, this part can be installed with motorised spring charging system.

LV BOARD SECTION
This section contains terminal blocks, LV fuses, thermostat, measuring instruments and protection relays. When the
switchgear is energised (busbars and cable) processes can be performed in LV board.

WITCHGEARS5
Basic Interlocking Systems
• LBS can be closed only when the switchgear door is closed and earthing switch is open.
• Earthing Switch can be closed when the LBS is open.
• Switchgear door can be opened when the earthing switch is closed.
• LBS can not be closed when the switchgear door is open.

Switchgears with Circuit Breakers;

• LBS (in the coupling switchgear) can be opened only when
the breaker is in ON position.
• LBS or breaker can be locked in ON position.
• Earthing Switch can only be closed when it is open.
• Switchgear door can not be closed when open.

Switchgear door can be opened only if the breaker is locked

in ON position, if the LBS is open and the earthing switch is
not closed.

STRUCTURAL PROPERTIES
HMH Series Switchgears are designed under complete modular structure, in consideration of functionality, appearance
and security features. Switchgear carcasses are manufactured of 2mm hot dip galvanized sheet metal and with its
galvanise thickness of 275gr/m² which is above the industry standards, it is not subject to any deformation even under
the most damp mediums.

MODULAR
6
SW
 In all epoxy resin parts used in switchgears (support and
capacitive isolators, switch disconnector frame etc.) are
produced in the epoxy resin facility inside our factory and
each is subjected to the relevant tests prior to entering in
main switchgear assembly line.

The mimic diagrams and electricity protection/

command boards of the switchgears are prepared
on a project-based basis according to the secondary
projects prepared by the project engineers in line with
the customer and project requirements. The texts and
warnings on the HMH Series Switchgears and user’s
manuals can be selected among Turkish, English,
Russian, French and Arabic languages.

STANDARD AND OPTIONAL ACCESSORIES

Current & Voltage Transformers
Two different type of current transformer are used in HMH
Series Switchgears;

- Toroidal type (Rogowski coil current sensor) current

transformer produced in Ulusoy Elektrik
- Cast resin type current transformer

Rogowski coil current sensors which is a member of electronic

current transformers family, are manufactured in accordance
with the IEC 60044.8 (Instrument Transformers - Part8:
Electronic Current Transformers) standard. Its most important
feature is its small dimensions and ability to be in a single
standard within a very wide large current range, for example;
many various current transformers are used within nominal
current range of 100-1600A while single type rogowski current
sensor can be used within the entire specified range.

WITCHGEARS7
The cast resin type current and voltage transformers used in HMH Series Switchgears
are manufactured under vacuum and despite it is being tested by the manufacturer;
they are subjected to tests in our own laboratory one more time by the input quality
control teams of our factory.

Digital Protection and Control Relays

In HMH Series Switchgears various types of relays are used with various protection,
measurement and control properties. In consideration of the customer and project
requirements, the selected relays are dispatched from our factory with the desired
set values. The PNC PAC E-100 relay which is frequently used and offers 50 & 51
over current and ground protection functions, operates in full compliance with Ulusoy
toroidal current transformers and in line with the customer demands, the relays of
different manufacturers can also be used in our switchgears.

Line Fault Indicators

The devices supplied from various manufacturers which can be mounted into control
board or concrete kiosk in order to indicate the phase and ground faults are offered
optionally with our switchgears.

Metering Instruments
The selection of the metering instruments in our switchgears, such as ammeter,
voltmeter, gauge, energy analyser is made in line with the customer and project
requirements.

MV Fuses
In our HMH Series Switchgears, high breaking capacity MV fuses are used, after being
selected as per the transformer power.

Remote Control
By means of the remote control which is offered in HMH Series Switchgear as default,
it is possible to remote control the operation on the cell from up to 5 meters.

Busbars
The busbars which are used for connection of the switchgears with each other are
manufactured from high conductivity aluminium or copper and insulated with heat-

MODULAR SW
shrink tubes.

8
 METAL ENCLOSED MODULAR SWITCHGEARS
Manufactured in accordance with IEC 62271 - 200, 60265, 60129, 60694, 62271 - 100, 62271 - 102, 62271 - 105 standards.
Below are the switchgear types and definitions which are frequently used in secondary distribution systems or industrial
facilities.

• HMH Series 01 Incoming-Outgoing with LBS

• HMH Series 02 Transformer Protection Fuse-Switch Combination
• HMH Series 03 Voltage Transformer (Voltage Metering)
• HMH Series 04 Incoming-Outgoing with Circuit Breaker
• HMH Series 05 Bus Coupling (Couplage)
• HMH Series 06 Incoming-Outgoing with Switch Disconnector
• HMH Series 07 Cable Connection
• HMH Series 08 Current & Voltage Metering with LBS
• HMH Series 09 Bus Riser
• HMH Series 10 Current Metering + Bus Riser
• HMH Series 11 Current Metering
• HMH Series 12 Bus Riser with Breaker (side exit)
• HMH Series 13 Bus Riser with LBS (side exit)
• HMH Series 14 Outgoing with Circuit Breaker & Voltage Transformer
• HMH Series 15 Current & Voltage Metering with Switch Disconnector

Ulusoy Elektrik offers around 30 different options and solutions using various optional equipments in addition to the
above list in line with the requests of the customer. Please contact sales engineers for your specific requirements.

TESTS AND STANDARDS

All type tests of HMH Series Metal Encased Modular Switchgears are successfully performed in international independent
and accredited laboratories in compliance with the standards: 60298, 60265, 60129, 62271-1, 62271-100, 62271-200 and
62271-105 stipulated by International Electrotechnical Commission (IEC), their productions are carried out as stipulated
in these standards.

Below are some routine tests applied Also, the following tests can be performed in
on each HMH36 series switchgears; our own calibrated laboratories;

• Network Frequency • Silver Thickness Test

• 2kV LV Cable Test • Paint Thickness Test
• SF6 Gas Leakage Test (Hellium Leakage Test) • Network Frequency
• Main Circuit Resistance Test • Lightning Impulse Test
• Electrical and Mechanical Opening - Closing Test • Partial Discharge Test
• Partial Discharge Test • Temperature Rise Test up to 4000A
• Isolation Test Applied on 5kV LV Cables

WITCHGEARS9
• Resistance Measurement Test
 HMH SERIES - 01
Incoming - Outgoing Switchgear with Load Break Switch

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Spring Charge Mechanism, Fault Indicator

HMH SERIES - 02
Load Break Switch Compound with Fuse

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Spring Charge Mechanism

HMH SERIES - 03
Voltage Transformer Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

*You can also use this for internal demand

HMH SERIES - 04
Incoming - Outgoing Switchgear with Circuit Breaker

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 750 960 1800

24 750 960 1800
36 1000 1400 2250

Optional Equipments: Measurement Devices

10
HMH SERIES - 05
Busbar Connection (Couplage) Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 1000 960 1800

24 1000 960 1800
36 1500 1400 2250

Optional Equipments: Measurement Devices

HMH SERIES - 06
Incoming - Outgoing Switchgear with Disconnector

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Fault Indicator

HMH SERIES - 07
Cable Connection Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Earthing Switch

HMH SERIES - 08
Current - Voltage Metering Switchgear with Load Break Switch

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 750 960 1800

24 750 960 1800
36 1000 1400 2250

Optional Equipments: Spring Charge Mechanism,

Measurement Devices

11
 HMH SERIES - 09
Bus Riser Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Spring Charge Mechanism, Fault Indicator

HMH SERIES - 10
Current Metering + Bus Riser Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 (375) 960 1800
36 750 1400 2250

Optional Equipments: Measurement Devices

HMH SERIES - 11
Current Metering Switchgear

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 375 960 1800

24 500 960 1800
36 750 1400 2250

Optional Equipments: Measurement Devices

HMH SERIES - 12
Busbar Seperator Switchgear (Side Exit) with Circuit Breaker

Un Width Depth Height

(kV) (mm) (mm) (mm)

12 500 960 1800

24 750 960 1800
36 1000 1400 2250

Optional Equipments: Measurement Devices

12
TECHNICAL SPECIFICATIONS

TYPE HMH 12 HMH 24 HMH 36

Rated voltage 12kV 24kV 36kV

Rated network frequency withstand voltage (1 min) 28kV 50kV 70kV

Between isolating distance (open position between the contacts) 32kV 60kV 80kV

Rated lightning impulse withstand voltage 75kV 125kV 170kV

Between isolating distance (open position between the contacts) 85kV 110kV 195kV

Nominal frequency 50-60 Hz 50-60 Hz 50-60 Hz

Nominal current 630-1250A 630-1250A 630-1250A

Nominal peak short circuit current 40-63kA 40-63kA 40-63kA

Nominal short circuit current (1s) (3s) 16-20-25kA 16-20-25 kA 16-20-25 kA

Nominal closed circuit breaking current 630A 630A 630A

Nominal no load cable breaking current 630A 630A 630A

Nominal no load line breaking current 16A 16A 50A

Nominal idle cable breaking current 2A 1.5A 2A

Nominal earthing fault current 10A 10A 1.5A

Line and cable breaking current in case of an earth fault 10A 10A 87A

Nominal transfer current 920A 630A 630A

Nominal short circuit closing current 50kA-peak 40kA-peak 40kA-peak

Mechanical Class M1-E3 M1-E3 M1-E3

Protection Class IP3X IP3X IP3X

Internal Arc Class AFL AFL AFL

Accesibility Class LSC2A-PI LSC2A-PI LSC2A-PI

Fuses (Compliant with IEC 60282-1) 12kV 24kV 36kV

Dimension 295mm 442mm 537mm

Impact pin force middle middle middle

Earthing Switch (ESH 36-01) 12kV 24kV 36kV

Nominal short circuit breaking current (1s) (load factor) 16-20-25kA 16-20-25kA 16-20-25kA

Nominal short circuit closing current 40-63kA-peak 40-63kA-peak 40-63kA-peak

Earthing switch (ESH 36-02) 12kV 24kV 36kV

Nominal short circuit breaking curent (1s) 1 kA 1kA 1kA 1kA

Nominal short circuit closing current 2.5kA 2.5kA 2.5kA

13
UMC SERIE
UMC SERIES

MET
ES
METAL
METAL
CLAD

TALHMH
CLAD
SE
UMC Series 3,3-7,2-12-17,5-24-36kV-1250-2500A-5-31,5kA Metal Clad Switchgears;

Metal Clad Switchgears are medium voltage switchgear systems consisting of 3 main and 1 supplementary sections and
separated from each other by means of grounded metal plates, equipped with withdrawable type switching devices.
 APPLICATION AREAS
• Energy Generation and Distribution Facilities
• HV / MV Substations
• Mines
• Cement and Petro Chemical Factories
• Iron & Steel Factories
• Water & Oil Pump Stations
• Airports, Ports, Railways
• Shopping Malls
• Hospitals

ADVANTAGES
• Resistance to high current and short circuit (31,5kA /3 second),
• Requirement to less space due to the compact design (1200mm of panel width for 36kV)
• All divisions are separated by means of grounded metal and they are fully insulated systems.
• Ability to use with various types and properties of vacuum or SF6 circuit breakers and protection control board
• Easily replaceable withdrawable type switching devices between the panels.
• Maintenance, reparation and on-site installation can be done from front or back side of the switchgear.

MECHANICAL INTERLOCKING SYSTEMS

• Circuit Breaker (VCB) door can be opened only when breaker is in test position. (St)
• VCB cradle can not be switched to service position before being fixed on the panel. (St)
• VCB door can not be closed before the low voltage control cable is installed on its place (Jag). (St)
• The VCB can not be switched into service position before the breaker door is properly closed. (St)
• Breaker cart can not be taken inside before the earthing switch opens. (St)
• If the breaker is in service position, earthing switch can not be closed. (St)

ELECTRICAL INTERLOCKING SYSTEMS

• VCB can be commanded only in test and service positions. (St)
• Incoming panel rear door cannot be opened before cutting the energy from the previous station. (Op)
• Outgoing panel rear door cannot be opened before the VCB cradle is switched into test position. (Op)
• If the breaker is in service position, earthing switch cannot be closed. (Op)
• Incoming panel earthing switch cannot be closed before cutting the energy from the previous station. (Op)

METAL CLAD
*St: Standard
*Op: Optional

16
 SAFETY
• Pressure relief flaps are at the top and IAC class is A-FL or A-FLR.
• All manoeuvres can be made when the panel door is properly closed.
• Possibility of wrong manoeuvre is prevented by means of mechanical and electrical interlocks.
• It is a fully insulated system and division class is PM.
• Equipped with E2 class earthing switch which can close 5 times to short circuits.

BUSBAR COMPARTMENT
It is the metal section which contains the copper conductors which can resist
to high current and short circuit and provides energy transmission between
the boards and the epoxy resin support insulators and case isolators which
fixes these conductors to the board. The access to the Busbar section is
provided from the top and when desired, the access can also be provided
through the breaker section without removing the cases and metal curtains
by removing the front sheet.

During the busbar transmission between the boards, the expansion of

the board in both directions can be easily provided by use of busbar joint
apparatus.

CIRCUIT BREAKER COMPARTMENT

It is the section which contains the medium voltage switching elements
(SF6 or Vacuum Breakers, Vacuum Contactors) and the metal shutters
LSC2B/ PM (Partical Metal) which separate the shelved type car, busbar
and breaker sections carrying these items from each other. In line with
special requests, voltage transformers and MV fuses can be placed on
the cart. The breakers used in the Switchgears with the same current
values can be changed quickly for energy continuity.

A shutter movement system has been designed which opens the

front of epoxy resin cases so that the movement of the breaker cart
is not forced in service position and which is safely closed when being
switched into test position. Breaker cart is at all times in contact with
the main ground of the board with its spring-loaded ground busbar.
Due to the interlock which obtains its movement from the earthing
switch, it cannot be closed in service position. Status information for the
breaker is transported to low voltage board by means of socket outlet
system. Breakers have been tested within the panel in accordance with
IEC62271- 100 and IEC62271-200 standards.

METAL CLAD17
 LOW VOLTAGE CONTROL & PROTECTION COMPARTMENT
It is the section which is equipped with every kind of protection relays,
control elements and measuring instruments in line with system
requirements. It is contained in a grounded metal case in order to
prolay any damage to the staff and materials in case of in internal
arc arise within the board. Control and monitoring materials have
been designed at a height easy to control. The transmission between
the boards can be easily performed by means of cable connection
(supplementary feeding and locks). Board mimics are located on front
door or low voltage cover and circuit flow is easy understandable.

CABLE COMPARTMENT
It is the section which contains different types of current, voltage
transformers, epoxy case isolators which provide transmission
with breaker section and switchgear components such as
earthing switch, surge arrester and capacitive insulators. In case
of a replacement need of the measurement transformers, their
installation is fast and easy due to the sliding structure.

Cables are fixed on the board base by use of sleeves. When

necessary mechanical and electrical locks are made/unlocked,
the access into the cable section, in consideration of the
dimensions of the buildings and user’s ease, has been designed
so to allow the access from front and back.

This safety has been approved by IAC:A FLR and IAC:A FL type
specified in IEC62271-200 standard.

TESTS AND STANDARDS

Ulusoy Elektrik UMC Series Metal Clad Switchgears have successfully passed all type tests stipulated by IEC standards in
international accredited and reputable independent laboratories (KEMA) and have been entitled to document its quality. Apart
from IEC standards, within the framework of the total quality understanding of Ulusoy Elektrik, all controls and corrections
required by the highest quality level at production, testing and after sales stages are performed in due diligence.

METAL
18
CLAD
TYPE UMC 12 UMC 17 UMC 24 UMC 36

Class LSC2B-PM LSC2B-PM LSC2B-PM LSC2B-PM

Nominal Voltage 12kV 17,5kV 24kV 36kV

Lightning Impulse Voltage 75kV 95kV 125kV 170kV

Network Frequency 28kV (1min) 38kV (1min) 50kV (1min) 70kV (1min)

Rated Current 630/3150A 630/3150A 630/3150A 630/2500A

Short Circuit Current 31,5kA t=3sec 31,5kA t=3sec 25kA t=3sec 31,5kA t=3sec

Short Circuit Current (peak) 80kA 62,5kA 62,5kA 80kA

Internal Arc Current 31,5kA t=1sec 25kA t=1sec 25kA t=1sec 31,5kA t=1sec

IAC-AFL IAC-AFL IAC-AFL IAC-AFL

Internal Arc Class (IAC)
IAC-AFLR IAC-AFLR IAC-AFLR IAC-AFLR

Protection Class IP3X IP3X IP3X IP3X

Minimum Ambiance Temperature -5°C -5°C -5°C -5°C

Maximum Ambiance Temperature +40°C +40°C +40°C +40°C

Maximum Moisture %80 %80 %80 %80

Elevation 1000m 1000m 1000m 1000m

Board Dimensions (mm) (Width x Height x Depth) 800x2000x1750 900x2000x2000 900x2000x2000 1200x2200x2450

Paint Electrostatic Powdered Paint (RAL 7035)

Standard IEC62271-200

Earthing Switch

Class Class E2, IEC 62271-102

Short Circuit Current 31,5kA t=3sec 31,5kA t=3sec 31,5kA t=3sec 31,5kA t=3sec

Short Circuit Current (peak) 80kA 80kA 80kA 80kA

METAL CLAD19
URING SE
URING SERIES

MO

URING
ERIES
SF6 GAS
SF6 GAS
INSULATED
INSULATED
ODULAR andand
MODULAR COMPACT
COMPACT
SWITCHGEARS / RMU

G SERIES
HMH SE
URING Series SF6 Gas Insulated Modular and Compact Switchgears;

LBSG Series SF6 Gas Insulated MV Modular Switchgears (RMU), with its increased functional properties and minimized
dimensions, are the modular switchgears which are used in today’s advanced MV secondary distribution systems.

LBSG Series RMU’s are designed by the experienced engineers of Ulusoy Elektrik and all type tests stipulated by the IEC 62271-
200 standard have been completed in International Accredited Laboratories and its compliance with the relevant specifications
have been documented.

The RMU’s suitable to use in SCADA systems, are operated with Puffer system (directing the SF6 gas directly on the arc) is
manufactured by use of international line production methods. RMU offer a unique solution to the user with its remote opening
closing property even without the motor provided that the mechanism is installed previously. The RMU’s which are generally used
within a metal or concrete kiosk type substation in the MV secondary distribution systems, thanks to their compact dimensions
and increased safety properties, offer smart solutions to the user.
 ADVANTAGES
As a product of R&D operations of Ulusoy Elektrik; LBSG Series RMU has a quite reliable and robust structure with the
special contact system it employs. The major advantages of the LBSG series are as follows;

Advanced Technology Design and Production

• Contact structure which has high breaking capacity, which moves in vertical axis and uses the puffer system in an optimum way
• Due to the 3mm thick stainless steel frame manufactured by use of robot laser technology; robust, regular-looking and
impermeability guaranteed structure.

Increased Safety Properties

• By means of robust structure, no damage to the user even under the most difficult internal arc conditions.

Flexible Design
• In order to respond user demands in the best way, compact and extensible alternatives.

Highest Quality Material

• The stainless steel, resin, vacuum tubes etc used in LBSG series RMU’s are supplied from the most reputable
manufacturers of the world and integrated in the products.

LBSG series RMU’s consist of 4 main sections;

1. Main Busbar Section 3. Breaking Earthing and Fuse Case Section
2. Mechanism and LV Control Section 4. Cable Connection Section

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 STRUCTURAL PROPERTIES
STAINLESS STEEL FRAME
In order to ensure increased operation and operator safety, all active sections and switching functions of the LBSG
series RMU’s are manufactured of 3mm stainless steel and contained inside sealed frame filled with SF6 gas. The
welding processes of the stainless steel frame is performed by use of robot laser technology, and thanks to this, the gas
leakage risk which is the most important issue in gas insulated switchgears, is almost completely removed by removing
the human affect.

BUSBARS AND CONNECTION ELEMENTS

The connections of the busbars inside the SF6 gas and between the switchgears are performed from the sides and
the transmission elements designed by Ulusoy Elektrik are manufactured by use of liquid silicon injection technology.

The epoxy resin bushings and isolators used in LBSG series RMU’s are also manufactured by Ulusoy Elektrik and each
part is subjected to routine partial discharge test.

MECHANISM
The mechanism which runs on the principle of releasing of loaded spring force provides the users with an easy
installation and use chance and to conduct the processes more easily. The mechanical lifespan of the mechanisms
which can be installed by motors have been tested up to at least 5000 times opening and closing.

CONTROL BOARD & MIMIC PANEL

Due to its simple usage , easy and clear mimic diagram, LBSG series RMU’s has a user friendly interface. Protection,
measurement and control elements have been placed ergonomically into the control board.

SAFETY AND OPERATION

An easy to understand front panel is designed so that operation is provided with a simple use ability.

Mechanical and electrical interlocks are supported with warning prints and the possibility of any incorrect manoeuvre
in the switchgears and of access to energised sections have been completely prevented.

It has become impossible to access to the cable connection section without turning off the earthing switch.

Also, during a possible internal arc, dynamic and thermic impacts that may be subject to the operating staff have been
completely removed and this situation has been documented by means of the tests carried out by international
accredited laboratories. Due to the fuse cases in the FLBSG type fused Transformer Protection Switchgears which
offer a very easy settlement, fuse replacement can be performed within seconds.

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 TECHNICAL SPECIFICATIONS

TYPES L MODULE F MODULE C MODULE M MODULE LLF - 3 WAY LLC - 3 WAY

Rated Voltage 12/24kV - 36kV 12/24kV - 36kV 12/24kV - 36kV 12/24kV - 36kV 12/24kV - 36kV 12/24kV - 36kV

Rated Current 630A 200A 630A 630A(CT unit) 200/630A 630A

24kV 21kA/3 sec 21kA 21kA/3 sec 21kA/3 sec 21kA/3 sec 21kA/3 sec

Short Circuit Withstand 16kA/3 sec 16kA/3 sec 16kA/3 sec 16kA/3 sec
36kV 16kA 16kA / 3 sec
20kA/1 sec
20kA/1 sec 20kA/1 sec 20kA/1 sec
25kA/1 sec

24kV 20kA/1 sec AFL 20kA/1 sec AFL 20kA/1 sec AFL 20kA/1 sec AFL 20kA/1 sec AFL 20kA/1 sec AFL
Internal Arc
16-20kA/1 sec 16-20kA/1 sec 16-20kA/1 sec
36kV 16kA/1 sec AFL 16kA/1 sec AFL 16-20-25kA/1 sec AFL
AFL AFL AFL
24kV 50-60kV
Power Frequency Withstand
Voltage (1 min/rms)
36kV 70-80kV

Lightning Impulse 24kV 125-145kV

Withstand (peak) 36kV 170-195kV

Enclosure IP 3X IP 3X IP 3X IP 3X IP 3X IP 3X
Protection Degree
SF6 Tank IP67 IP67 IP67 IP67 IP67

TESTS AND STANDARDS

All tests of LBSG series RMU’s for IEC 62271-200 standard has been successfully completed in international accredited
laboratories and documented.

ACCESSORIES
CABLE TERMINATIONS & CONNECTORS
The T & Elbow type cable connectors which are suitable for the A,B or C type bushings used in LBSG Series RMU’s are
manufactured by Ulusoy Elektrik and they offer a considerable saving of cost and time when purchased together with the
RMU’s.

LINE FAULT INDICATORS

The Line Fault Indicators which are used in order to determine the cable failures in the fastest manner are offered optionally.

PROTECTION RELAYS
The digital protection relays, with auxiliary or self powered, with required functions according to system requirements, can

METAL
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CLADan
be selected from different manufacturers in line with the demands of the end users.

24
 SERVICE AND SPARE PART
All parts used in LBSG series RMU; including epoxy bushings, fuse tubes and silicon caps, are manufactured in Ulusoy
Elektrik factory. 100% of the components used in our RMUS’s are manufactured inhouse so that we can respond every kind
of spare part and service requests, on time and on budget.

Laterally Extensible Connection System

Top Extensible Connection System

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 DRAWINGS & DIMENSIONS

24kV Compact Incoming - Outgoing

Load Break Switch Compound
with Fuse Switchgear

24kV Compact Incoming - Outgoing

Circuit Breaker Switchgear

36kV Compact Incoming - Outgoing

- Load Break Switch Compound
with Fuse Switchgear

26
36kV Modular Circuit Breaker Switchgear

1800
450 847

36kV Modular Load Break Switch

Compound with Fuse Switchgear

27
UBET SERI
UBET SERIES

UBE
IES
COMPACT
COMPACT
CONCRETE
CONCRETE
TRANSFORMER SUBSTATION

ETHMH
SERIES
SE
UBET series monoblock concrete substations, manufactured of BS-35 concrete according to international standards, are the
products which are designed for being used in secondary distribution systems up to 36kV for housing purpose of modular
switchgears, distribution transformers, LV distribution boards and other medium voltage switchgear and distribution
equipments.

Ulusoy Elektrik, manufactured the first concrete kiosk in Turkey in 1997 to provide electricity distribution in Turkey in harmony
with the nature, aesthetically, reliably and in a problem-free manner, with more than 25.000 concrete kiosks has manufactured
up to date. Being able to be manufactured in any colour and dimensions ranging from 2,5m to 7,2m; concrete kiosks do not
require any further installation and are in compliance with all standards without a risk of damage to the adjacent items even in
case of any internal arc occurred inside the substations, this property is evidenced by means of type tests which are periodically
repeated and applied by independent accredited laboratories.
 GENERAL PROPERTIES
Substations generally consist of 3 sections;

• High voltage switching units section.

• Medium voltage distribution transformer section.
• Low voltage distribution board section.

Each section has its own independent access doors and ventilation shades. It is possible to make configurations of different
doors and ventilation shades in order to find solutions for requests and for climatic properties.

Advantages of the System

Tank-Foundation Section is suitable for the smallest bending radius of the 36kV single -core 240 mm² cable. It is not necessary
to build a tank and basic section at the site.

• Max. operator safety in case of internal arc breakdown

• Compact structure
• Ease of transportation
• Unlimited solution facility on the projects
• Tests and MV equipment assemblies made in factory and much more

Conditions of Use
* Medium voltage distribution system

• Wind, solar and hydroelectric plants

• Generator feeding units
• Transformer stations
• Low voltage distribution boards

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 STRUCTURAL PROPERTIES
The design and manufacturing of the frames are considered for the most difficult conditions in operation and they
are conducted in consideration of pressure resistance and earthquake calculations. The measurements of all sections;
the necessary safety distances are determined in accordance with the recommendations of the manufacturers of LV
switchgear equipments and transformers as well as with the relevant specifications. 220V illumination facility is default
in the sections.

They are provided in accordance with IEC 60529, against access and contact in the energised sections of the stations,
against touching contact, dust and water in mobile sections. Concrete substation is impermeable and ventilation panels
are manufactured with a rating of IP 43 protection.

In order to be able to carry the frame safely, it has lifting pins in four corners. The sections which are under the ground
have been coated with black insulating material. It is mounted on the ground which is prepared in accordance with the
basic details given.

In the doors of ventilation panels section, wire cage is used for filtering purposes. These panels are manufactured as a
resistance against impacts which may come from inside or outside. Door production in different dimensions is possible
for special project requirements.

The modular swi t c h g e a r s inside concrete

substations, intermediate divisions, doors,
ventilation panels, installat ion foundations
and all metal assemblies have been
connected to potential balancing busbar. Its
connection to the external grounding system
of the grounding busbar is performed by the
user.

METAL TRANS
NCRETE CLAD 31
 The tank – foundation section for the UBET Type Compact Stations is suitable for the smallest bending radius of 1 x
240 mm² XLPE cable at 36kV voltage level.

OPERATING TYPE
Externally operated

TESTS
Substations are dispatched to the customers after performing the routine tests specified in the relevant standards and
specifications.

Substations have type tests performed in CESI and IPH laboratories in order to demonstrate that they can resist to internal
arc failures that may occur.
The behaviours demonstrated by Compact Transformer Substations under earthquake loads have been examined by Middle
East Technical University Construction Engineering Department. Results have shown that a severe earthquake would not
cause a problem for the safety of the building. Also it was proven that the structure meets the collapsing criteria even under
the most negative conditions. Transformer Substations have been subjected to internal arc resistance test in IPH, CESI and

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ICMET and it has successfully passed the test.

32
 PROTECTION CLASS
The voltage-carrying and mobile sections are at the IP35 protection class against dust and water according to IEC 529.

DIMENSIONS

TYPE Length Width Height Settlement area (m²) Empty Weight (kg)

UBET B25 2.500 2.500 3.550 6,250 ~10.000

UBET B32 3.200 2.500 3.550 8,000 ~12.000

UBET B38 3.850 2.500 3.550 9,625 ~14.000

UBET B43 4.350 2.500 3.550 10,875 ~16.000

UBET B48 4.800 2.500 3.550 12,000 ~17.000

UBET B53 5.350 2.500 3.550 13,375 ~18.000

UBET B64 6.400 2.500 3.550 16,000 ~19.000

UBET B72 7.200 2.500 3.550 18,000 ~22.000

TECHNICAL SPECIFICATIONS

Nominal Voltage 12 - 36kV

Type UBET

Maximum Nominal Power (kVA) 1600

Casing Class (As per IEC 62271 - 202) 10

Internal Arc Resistance (As per Access A and Access B) 16kA - 1 sn

Standard IEC 62271 - 202

Protection Class IP23 (up to IP43 optional)

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NCRETE CLAD 33
 FREQUENTLY USED KIOSK TYPES & LAYOUTS

UBET (B25)

UBET (B32)

UBET (B38

34
UBET (B43)

UBET (B48)

UBET (B53)

UBET (B64)

UBET (B72)

35
 UBET SERIES CONCRETE SUBSTATION TRANSPORTATION AND
UNLOADING INSTRUCTIONS
• Crane must be selected as per the weight of the concrete substation. Cranes with a minimum capacity of two times
the substation weight must be used.
• No matter how long the crane arm is, remember that the manoeuvre ability and transportation tare of the crane will
decrease.
• After fully placing the lifting pins placed inside the substation into the eyebolt holes located at four edges of the
substation, connect them with the crane ropes (chains).
• Place the substations onto the foundation in the foundation trench prepared without shaking.
• The roofs of the substations can be removed you can remove the roof by using roof eyebolts.
• Please read the unloading - lifting and using instructions inside the substation.

UBET CONCRETE SUBSTATION SETTLEMENT DIMENSIONS

Pedestal Excavation Dimensions Concrete Base

TYPE
Dimensions (W x L) (W x L x H) Dimensions (W x L x H)

UBET B25 2500x2500 3500x3500 3000x3000

UBET B32 2500x3200 3500x4200 3000x3700

UBET B38 2500x3850 3500x4850 3000x5350

UBET B43 2500x4350 3500x5300 3000x4800

UBET B48 2500x4850 3500x5800 3000x5300

UBET B53 2500x5350 3500x6300 3000x5800

UBET B64 2500x6400 3500x7400 3000x6900

UBET B72 2500x7200 3500x8200 3000x7700

*in mm

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CON
 Dig 750mm from ground 0 according to the substation’s footing 100mm thick mesh wired concrete will be poured according
dimensions. to the dimensions of the base

Put 50mm of 0,3 sand onto the concrete The U bars have to be taken out after the sand is leveled

Remove the U bars after the sand is leveled Place the substation in to the prapared base and cover its perimeter with sand

METAL CLAD
NCRETE TRANS
37
UBNET SERI
UNBET SERIES

UND

NDERGRO
 IES
DERGROUND
UNDERGROUND
CONCRETE
CONCRETE

OUND CO
These types are operated from inside and located underground for medium voltage substation requirements where the population
is very dense and where an area designation is not possible in urban stations for a transformer substation. It has a monoblock
structure which can contain various MV electricity distribution configurations and 2 pieces of 36kV 630kVA transformers and
boards. In the underground transformer stations which are manufactured as monoblock as per the international standards;
BS35 concrete has been used in frame section and BS40 concrete on the roof. Also water impermeability property is provided
with kiosks in due diligence and the necessary impermeability tests have been carried out.

They are designed suitable for placing in parks and gardens, avenues, traffic islands or any other places where there is a space
for 2 ventilation poles only, ready to make on-site installation.
 GENERAL PROPERTIES
• Supported concrete monoblock frame with independent caps, ventilation system and inputs
• MV switching devices with complete gas insulation (RMU)
• MV/LV Transformers: 1 or 2 up to 36 kv
• Low voltage board
• MV and LV direct cable connections
• Grounding circuit
• Illumination and supplementary services

ADVANTAGES
• Excellent environmental harmony
• Monoblock design
• Water impermeability
• Trouble-free operation under every kind of environmental condition
• Resistance under high moisture rates
• Low operation cost
• Use of equipment with no or little maintenance
• Usage of materials proper for standardization
• Fast project engineering
• Serial production and short delivery periods
• Alternative options
• Turn-key delivery solutions

CONFIGURATION TYPE: UNBET - TYPE 1

• 1 Transformer up to 1000 kVA
• 1 Incoming - 1 Outgoing - 1 Transformer Protection Functioned MV Switchgears
• 1 Low Voltage Board

CONFIGURATION TYPE: UNBET - TYPE 2

• 2 Transformers up to 630 kVA
• 1 Incoming - 1 Outgoing - 2 Transformer Protection Functioned MV Switchgears
• 2 Low Voltage Boards

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40
 Configuration 1 Configuration 2

METAL
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CONCRETE
 USAC SERIE
USAC SERIES

SU
ETALLIC S
42
ES
METALLIC
METALLIC
UBSTATIONS
SUBSTATIONS

SUBSTAT
USAC Series Metallic Substations are manufactured by use of hot dip galvanized plates in order to provide the casing of various
electrical equipments such as Medium Voltage Switching elements, Transformers, Low Voltage Distribution Boards, UPS’s and
Generators.

Metallic Substation which can be manufactured in any dimensions offer various options in line with the customer needs such as
highest level of isolation, natural fan, illumination, air condition.

Manufactured in modular structure, it is very easy to make an addition or replacement in case of a failure in the sheet plate kiosks.
At the same time, by means of the modular systems, various ranges of sizes of stations can be established up to 40 meters of width
and 5 meters of depth. With its limitless colour and dimension options and ease of transportation due to its light structure, our sheet
metal kiosks are safely used in more than 10 countries particularly in Turkic Republics and Middle Eastern Region.

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METAL
44
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METALLIC SU
 METAL CLAD
UBSTATIONS
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 SAMPLE TECHNICAL DRAWINGS

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