Medium Voltage Switchgear - MTW

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Automação
MTW
Medium Voltage Switchgears
and Motor Control Centers
www.weg.net
WEG Medium Voltage (MV) Switchgears and Motor Control Centers
The WEG Medium Voltage (MV) Switchgears and Motor Control Centers are factory assembled and
tested for 2.3 kV to 36 kV voltages and were developed to meet the requirements for international
IEC 62271-200 standard, while preserving its easy assembly and maintenance practices, such as
flexibility in adapting to the different characteristics demanded by the market.
Applications
The MV Switchgears have a wide range of applications
in MTV systems, the main ones being:
JJ Utility substation
JJ Main factory and industrial facility protection and sectioning
JJ Pumping stations
JJ Railway systems
JJ Power generation thermal and hydroelectric plants
JJ Medium voltage motor start
JJ Unitary substations
JJ Power distribution systems
JJ Interconnection boards
JJ Fixed and variable capacitor banks
USP
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Medium Voltage Switchgears and Motor Control Centers
Advantages
JJ Various alternatives for shielding the MV compartments to
meet customer needs and demands
JJ Fast circuit breaker and contactor replacement, due to
slide interchangeability
JJ Minimum maintenance
JJ Fast and easy expansion due to its modular construction
JJ Fast factory assembly
JJ Simple and safe operations
JJ Easy access to compartments for maintenance through
removable doors and covers
JJ Transport truck for circuit breaker/contactor (optional)
JJ Interlocking system to protect against incorrect operation
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Construction Characteristics
Medium Voltage Switchgears are manufactured in bent steel plate profiles and enclosed on all sides by
steel plate.
JJ
JJ
JJ
JJ
JJ
JJ
The steel plates undergo an alkaline degreasing treatment, phosphatization and powdered painting
Overpressure relief devices in the top provide pressure relief in the case of internal arc
Metal divisions separate the compartments from each other for the shielded type
The general bus consists of one or more rectangular bars, in electrolytic copper with tin plated fittings and dimensioned in
such a way to resist thermal and dynamic efforts
When the bus compartment is independent for each cubicle the separation is effected by fastening and passage insulation
through-plugs
The low voltage compartment is located in the upper front part. This compartment houses the measuring instruments,
protection relay, terminals, thermostats, contacts, etc., and is completely isolated from the medium voltage through a steel
plate, and is fitted with its own closing door
Technical Characteristics
Electrical
Voltage classes
7.2 - 17.5 - 24 - 36 kV
Rated currents
630 - 1,250 - 1,600 - 2,000 - 2,500 - 3,150 - 4,000 A
Interrupting current
25 - 31.5 - 40 - 50 kA / 1s
Basic impulse level (BIL)
60 - 95 - 125 - 170 kV
Mechanical
Continuity service loss
LSC1 to LSC2B-PM
Protection degree
IP 4X (other protection degrees under request)
Finishing painting
Light gray Munsell N 6.5 or RAL 7032 (others under request)
Structure: 3.0 mm
Sheet gauges
Covers: 3.0 mm
Internal pressure relief
Flaps for each compartment
Vacuum circuit breaker mounted on removable slide
Vacuum contactor
Switching devices
Earthing switch (optional)
Disconnect switch and fuses
Fixed CTs
Measuring equipment
Fixed or extractable VTs
Protection equipment
Microprocessed multi function protection relays
Environment
Altitude
Maximum temperature
Proximity to the sea
Marine platform
Weatherproof / outdoor use
Up to 1,000 m (greater altitudes under request)
40 °C
We comply with Petrobras N-1735 standard, conditions 3 and 4
We comply with Petrobras N-1374 standard
Under request
Medium Voltage Switchgears and Motor Control Centers
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Medium Voltage Switchgear Model MTW
Specific Characteristics
JJ Continuity service loss: LSC2B-PM
JJ Internal arc resistant
JJ High level of safety for the operator
JJ Reduced dimensions, requiring smaller sized electrical room
JJ Circuit breaker displacement from test to inserted position and
vice-versa, equipped with closed circuit breaker
compartment door
JJ Optional earthing switch
JJ Standardized structures, components and dimensions
JJ Circuit breaker mechanical control with closed door
JJ Cable access through front section
Safety
The MTW is arc resistant, and thus, complies with the
most demanding international standards, guaranteeing
its safe operation. There are also various interlocks
between the circuit breaker compartment door and
the circuit breaker extractable slide. The particular
circuit breaker used eliminates the need for
maintenance and can be placed in the removal
position without having to open the cubicle door.
Circuit breaker
position
Interlocks
It is impossible to move the circuit breaker when it is
switched on
Inserted / service
It is impossible to turn off the earthing switch
It is impossible to open the circuit breaker
compartment door
It is impossible to open the circuit breaker
compartment door
Between the
inserted and
test/extracted
position
It is impossible to switch on the circuit breaker
It is impossible to turn off the earthing switch
It is impossible to disconnect the plug from the circuit
breaker control
It is impossible to move the circuit breaker if it is
switched on
Test / extracted
It is impossible to move the circuit breaker if the
earthing switch is off
It is impossible to close the circuit breaker
compartment door without connecting the circuit
breaker control plug
1
5
2
4
3
1 - Low voltage compartment
2 - Circuit breaker compartment
3 - Cable front access compartment or widrawable PTs
4 - Cable and CTs compartment
5 - Busbar compartment
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Medium Voltage Switchgears and Motor Control Centers
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Technical Characteristics
Electrical
Maximum operating voltage
kV
7.2
17.5
24
36
Rated withstand voltage - 60 Hz - 1 min.
kV
20
34
50
70
60
95
Atmospheric impulse rated withstand voltage
kV
Symmetrical interruption rated current
kA
Short time withstand current (1s)
Rated peak withstand current
Main bus rated current
A
125
170
25 - 31.5 - 40 - 50
25
25 - 31.5
kA
25 - 31.5 - 40 - 50
25
25 - 31.5
kA
63 - 79 - 100 - 125
63
63 - 79
630 / 800 / 1,250 / 2,500 / 3,150 / 4,000
Mechanical
Width
mm
800
1,200
Height
mm
2,500
2,500
2,500
2,750
Depth
mm
1,680 / 2,000
1,680 / 2,000
2,000
2,600
650 (630 e 1,250 A) / 750 (2,500 A) / 1,000 (3,150 e 4,000 A)
Classification according to IEC 62271-200
Loss of service continuity category
LSC 2B
Safe access to compartment that will be opened, existing bus bars and other energized units
Separation between live parts
PM
Metallic partitions and shutters between live parts and open compartment
Electric arc resistance
IAC BF ALR (MTW-03)
Enables general master access through front part
IAC AFLR (MTW-04)
Enables authorized access through the sides and rear
Standardized Configurations
The MTW switchgears are equipped with extractable racks in which several equipments may be assembled, such as:
disconnect switch with rectangular copper bars, voltage transformers, HH fuse, lightning conductors and other devices.
Note: other configurations (disconnect switch, fuse switches, etc) on request.
*
Withdrawable
circuit breaker.
CTs and earthing
switch
*
Withdrawable
circuit breaker.
CTs, fixed VTs and
earthing switch
Cubicle with VTs
and extractable
fuses
The circuit breaker is extracted or
inserted with the compartment door closed.
“INSERTED” position
“EXT-TEST” position
Automatic flaps protect against touch
while circuit breaker is extracted.
“EXTRACTED” position
Bus duct, enabling greater safety
in case of an electrical arc.
Medium Voltage Switchgears and Motor Control Centers
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www.weg.net
Medium Voltage Motor Control Center model CCM-MT
The WEG Medium Voltage Motor Control Center are designed for switching and controlling medium voltage motors
and are assembled and tested in the factory until 12 kV in accordance with NBR IEC 62271-200 standard.
Classification according to IEC 62271-200; IAC AF and LSC2A-PM.
General Description
The CCM-MT consists of shielded metal cubicles, air
insulated for voltages up to 12 kV and are composed of
vacuum withdrawable contactors and HH type fuses.
The buses may be simple or double. Two contactors can
be assembled per column.
Personnel Safety, Operation and Maintenance
JJ Mechanical and electrical interlock
JJ Full protection of live parts
JJ Fully interlocked contactor slide
JJ Arc resistant metal enclosure
Contactor Rack
The vacuum contactor, HH fuses and control transformers
(if requested) are installed in the withdrawable rack. This rack
is fully interlocked with the structure and is moved manually
from the “INSERTED” to the “TEST / EXTRACTED” positions.
Auxiliary Control Equipment
These cubicles foresee completely separate low voltage and
medium voltage compartments, for the installation of
measuring instruments, thermal overload relays, terminals,
thermostats, auxiliary contactors, etc., fitted with rapid
closing door.
Interlocks
The rack cannot be moved with the contactor in the
“ON” position
JJ The contactor cannot be operated when it is between the
“INSERTED” and “TEST / EXTRACTED” positions
JJ The contactor automatically switches off in the case
of a open fuse
JJ
Technical Characteristics
Electrical
Maximum operating voltage
kV
7.2
12
Rated withstand voltage - 60 Hz - 1 min.
kV
20
28
Atmospheric impulse rated withstand voltage
kV
60
75
Symmetrical interruption rated current
kA
60
Short time withstand current (1s)
kA
25 - 31.5 - 40 - 50
Rated peak withstand current (crest)
kA
63 - 79 - 100 - 125
Main bus rated current
A
75
79 to 2,500
Mechanical
Width
mm
650
900
Height
mm
2,300
2,500
Depth
mm
1,680
2,500
Note: other voltages available on request.
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Medium Voltage Switchgears and Motor Control Centers
www.weg.net
Power Generation Systems
WEG offers products able to meet the requirements for
power generation applications. Our products are robust
and provide specific technological solutions for applications
in small and medium power plants.
Brief list of some of our products:
JJ Surge cubicle
JJ Utility interconnection switchgear
JJ Utility measuring cubicles
JJ Supply cubicles (up to two circuit breakers per column)
JJ Neutral closing cubicle
JJ Protection and excitation panel
JJ Control table
JJ Earthing resistor
JJ 24 V dc or 125 V dc battery bank (other voltages on request)
JJ Distribution panels
Switchgears
In line with the MV Switchgears models, WEG switchgears
for power generation systems were developed to comply with
the NBR IEC 62271-200 standard. Being of robust concept
its mechanical structure is submitted to special treatment for
use in aggressive environments typical of Ethanol & Sugar
and Oil & Gas applications.
Protection, Measurement and Control Cabinet
These panels are equipped with microprocessed
multifunctional relays, multifunction instruments,
synchronization columns with analogical instruments
(optional), switches and pushbuttons for generator /
power generation system control.
Medium Voltage Switchgears and Motor Control Centers
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WEG Worldwide Operations
WEG PINTURAS - Pulverlux
Buenos Aires
Phone: +54 11 4299 8000
[email protected]
AUSTRALIA
WEG AUSTRALIA
Victoria
Phone: +61 3 9765 4600
[email protected]
www.weg.net/au
AUSTRIA
WATT DRIVE - WEG Group
Markt Piesting - Vienna
Phone: +43 2633 404 0
[email protected]
www.wattdrive.com
BELGIUM
WEG BENELUX
Nivelles - Belgium
Phone: +32 67 88 84 20
[email protected]
www.weg.net/be
BRAZIL
WEG EQUIPAMENTOS ELÉTRICOS
Jaraguá do Sul - Santa Catarina
Phone: +55 47 3276-4002
[email protected]
www.weg.net/br
CHILE
WEG CHILE
Santiago
Phone: +56 2 784 8900
[email protected]
www.weg.net/cl
CHINA
WEG NANTONG
Nantong - Jiangsu
Phone: +86 0513 8598 9333
[email protected]
www.weg.net/cn
COLOMBIA
WEG COLOMBIA
Bogotá
Phone: +57 1 416 0166
[email protected]
www.weg.net/co
MALAYSIA
WATT EURO-DRIVE - WEG Group
Shah Alam, Selangor
Phone: 603 78591626
[email protected]
www.wattdrive.com
SPAIN
WEG IBERIA
Madrid
Phone: +34 91 655 30 08
[email protected]
www.weg.net/es
FRANCE
WEG FRANCE
Saint Quentin Fallavier - Lyon
Phone: +33 4 74 99 11 35
[email protected]
www.weg.net/fr
MEXICO
WEG MEXICO
Huehuetoca
Phone: +52 55 5321 4231
[email protected]
www.weg.net/mx
SINGAPORE
WEG SINGAPORE
Singapore
Phone: +65 68589081
[email protected]
www.weg.net/sg
GERMANY
WEG GERMANY
Kerpen - North Rhine Westphalia
Phone: +49 2237 9291 0
[email protected]
www.weg.net/de
VOLTRAN - WEG Group
Tizayuca - Hidalgo
Phone: +52 77 5350 9354
www.voltran.com.mx
SCANDINAVIA
WEG SCANDINAVIA
Kungsbacka - Sweden
Phone: +46 300 73 400
[email protected]
www.weg.net/se
GHANA
ZEST ELECTRIC GHANA
WEG Group
Accra
Phone: +233 30 27 664 90
[email protected]
www.zestghana.com.gh
INDIA
WEG Electric India
Bangalore - Karnataka
Phone: +91 80 4128 2007
[email protected]
www.weg.net/in
WEG INDUSTRIES INDIA
Hosur - Tamil Nadu
Phone: +91 4344 301 501
[email protected]
www.weg.net/in
ITALY
WEG ITALIA
Cinisello Balsamo - Milano
Phone: +39 02 6129 3535
[email protected]
www.weg.net/it
JAPAN
WEG ELECTRIC MOTORS
JAPAN
Yokohama City - Kanagawa
Phone: +81 45 550 3030
[email protected]
www.weg.net/jp
NETHERLANDS
WEG NETHERLANDS
Oldenzaal - Overijssel
Phone: +31 541 571 080
[email protected]
www.weg.net/nl
PERU
WEG PERU
Lima
Phone:+51 1 472 3204
[email protected]
www.weg.net/pe
PORTUGAL
WEG EURO
Maia - Porto
Phone: +351 22 9477705
[email protected]
www.weg.net/pt
RUSSIA and CIS
WEG ELECTRIC CIS
Saint Petersburg
Phone: +7 812 363 2172
[email protected]
www.weg.net/ru
SOUTH AFRICA
ZEST ELECTRIC MOTORS
WEG Group
Johannesburg
Phone: +27 11 723 6000
[email protected]
www.zest.co.za
UK
WEG ELECTRIC MOTORS U.K.
Redditch - Worcestershire
Phone: +44 1527 513 800
[email protected]
www.weg.net/uk
UNITED ARAB EMIRATES
WEG MIDDLE EAST
Dubai
Phone: +971 4 813 0800
[email protected]
www.weg.net/ae
USA
WEG ELECTRIC
Duluth - Georgia
Phone: +1 678 249 2000
[email protected]
www.weg.net/us
ELECTRIC MACHINERY
WEG Group
Minneapolis - Minnesota
Phone: +1 612 378 8000
www.electricmachinery.com
VENEZUELA
WEG INDUSTRIAS VENEZUELA
Valencia - Carabobo
Phone: +58 241 821 0582
[email protected]
www.weg.net/ve
For those countries where there is not a WEG own operation, find our local distributor at www.weg.net.
WEG Group - Automation Business Unit
Jaraguá do Sul - SC - Brazil
Phone: +55 47 3276 4000
[email protected]
www.weg.net
Cod: 10192812 | Rev: 02 | Date (m/y): 04/2014
The values shown are subject to change without prior notice.
ARGENTINA
WEG EQUIPAMIENTOS
ELECTRICOS
San Francisco - Cordoba
Phone: +54 3564 421 484
[email protected]
www.weg.net/ar