Transcript 슬라이드 1 - 삼화양행에 오신것을 환영합니다.

20061016
EMFA 7.2kV-365kV
Next Generation Actuator
for Middle & High Voltage Circuit Breaker
ELECTRO
MAGNETIC
FORCE driving
ACTUATOR
Head office : EMATECH
San 56-1 Shillim-dong
Kwanak-Gu Seoul Korea
Phone : 82-2-875-0487
U.S. office : EMFA-LAB
3943 Irvine Blvd #113
Irvine blvd 92602
Phone : 1-714-418-7764
1-714-338-6197
EMATECH Co., Ltd.
What is EMFA
Next Generation Actuator (EMFA)
Rail-gun type
The worldwide first electric actuator for high voltage circuit
breaker
Patent : Seoul National University, Electromechanics Lab.
EMFA (Electro-Magnetic Force driving
Actuator) is designed for mechanism
drive of middle & high voltage circuit
breaker. The high voltage circuit breaker
requires the actuator to be capable of
carrying extremely high power during
a long stroke length and short breaking
time. However pneumatic, hydraulic,
spring and permanent magnetic actuator
are considered expensive, nosily and are
not used wide.
EMFA-I
[for Vacuum Circuit Breaker]
EMFA has a characteristic of one of the
electrical actuator with a moving coil,
because it can satisfy the requirements
of high voltage circuit breaker extremely
well for large stroke length and high power.
Besides, EMFA is possible to attach it in
a small spacer due to having a compact
volume.
EMFA is developed and designed by Seoul
National University, Electro-mechanics
Lab.
EMFA-III
[for Gas Circuit Breaker]
EMATECH Co., Ltd.
Basic structure
Next Generation Actuator (EMFA)
Planner and tubular type
Coil moving type actuator
Latch itself using by auxiliary permanent magnet
4 parts
- laminated iron core, permanent magnet, inserted iron core, coil
Auxiliary Permanent
Magnet
Inserted Iron
Core
Sing Coil
[ Structure of EMFA ]
Main Permanent
Magnet
Stationcore
iron core
Station iron
[Cross section of EMFA ]
S-45 steel
[Magnetic flux density on the iron core ]
EMATECH Co., Ltd.
Next Generation Actuator (EMFA)
EMFA series
EMFA - I for 50kV class Vacuum Circuit Breaker
Subject
EMFA -I
Stroke
8 – 60 mm
Contact force
1,000 – 10,000 N (3 phases)
Energy
20 – 46 Joules
velocity
open
1.0 - 1.8 m/s
close
0.5 - 1.2 m/s
EMFA - II for 72kV class Gas Circuit Breaker
Subject
EMFA –II
Stroke
60 – 140 mm
Repulsive gas
Force
5,000 – 14,000 N (3 phases)
Energy
100 – 1,500 Joules
velocity
open
2.5 - 4.6 m/s
close
1.5 - 2.6 m/s
EMFA - III for 145kV class Gas Circuit Breaker
Subject
EMFA –III
Stroke
100 – 200 mm
Repulsive gas
Force
20,000 – 60,000 N (3 phases)
Energy
1,500 – 15,000 Joules
velocity
open
3.3 - 6 m/s
close
2.5 - 4 m/s
EMATECH Co., Ltd.
Advantages of EMFA
Next Generation Actuator (EMFA)
High reliability
●
●
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This circuit breaker, adapted EMFA, is passed on KERI according to new
revised IEC standards (IEC 60517 & IEC 62271-100)
Compact size in minimized number of components and high power during long
stroke
Application of circuit breaker by high quality EMFA without any mechanical
components
Small space and volume requirements
●
Small size and light weight resulting from variable circuit breaker type
High security
●
●
No need latch mechanism (Hold the electrode position by itself)
Optimum operation through extendible increasing or decreasing rated capability
Outstanding harmony of the environment
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Lower noise by adapting magnetic system
Modern industrial design and use friendly
Protection against pollution by electromagnetic type
Enhancement self-diagnosis
●
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Anytime check the status of actuator stand-by state and its dynamic characteristics
as well as electrode
Controlling the velocity of the moving part during traveling
Alarm the emergency state on the system to safety supervisor and consumer through
the ubiquitous system
EMATECH Co., Ltd.
Next Generation Actuator (EMFA)
EMFA - I for Vacuum Circuit
EMATECH Co., Ltd.
Next Generation Actuator (EMFA)
General Features of EMFA - I for Vacuum Circuit Breaker
Patented system with better performance than Motor Spring
Actuator and Permanent Magnetic Actuator
●
●
Smaller than 30% volume size
Higher energy efficiency 40% over other electrical actuators
Ability to vary speed and self-adjust time according to the
environment, programmable and maintenance-free
Much more dependable and less prone to breakage and failure
Only one component working to opening or closing the electrodes
●
Enhancement the maintenance-free system
Uses far less energy than other electrical actuators
160
160
150
EMATECH Co., Ltd.
170
Next Generation Actuator (EMFA)
EMFA
- III for Gas Circuit Breaker
EMATECH Co., Ltd.
Next Generation Actuator (EMFA)
General Features of EMFA - III for Vacuum Circuit Breaker
The worldwide first electric actuator for high voltage circuit
breaker (IEC 60517 & IEC 62271-100)
Patented system with better performance than Motor Spring
Actuator and Hydraulic Actuator
●
●
Smaller than half of volume size
Higher energy efficiency 40% over other electrical actuators
Ability to vary speed and self-adjust time according to the
environment, programmable and maintenance-free
Enhancement self-diagnosis
●
●
Anytime check the status of actuator stand-by state and its dynamic characteristics
as well as electrode
Controlling the velocity of the moving part during traveling
220
220
430
250
EMATECH Co., Ltd.
Next Generation Actuator (EMFA)
EMFA control system
EMFA is controlling the electrodes during its working on opening
or closing by adapting DC/DC converter
EMFA driver system is very sensitive as well as actuator itself, due
to high efficiency
Converter
Unit
Capacitor
Unit
Charging
Unit
Actuator
Resolver
Control
Unit
I/O
Unit
I O
00100
mm
Close
Power supply
Main signal
Control signal
msec
Open
Signal from sensor
Stroke Curve of EMFA
EMATECH Co., Ltd.
AC
DC
Trip
signal
Next Generation Actuator (EMFA)
Information Technology on Power system
Increasing management of Power System through the networking
system
●
●
By adapting power system total solution, consumption administer and security of
power system as well as supplying company
High quality power can be supplied to consumers
Communication Relay System
CB
C/S server
B/L server
DB server
Web server
Distribution System
Fire wall Monitoring
Local
Optical Communication
LAN
Security of
Power System
Consumption
Administer
Global
Optical Communication
LAN
i KEN Center
EMATECH Co., Ltd.
EMATECH
Elector-Magnetic Actuator Technology Co., Ltd.
Head Office
San 56-1(130-301) Shillim-dong Kwanak-Gu Seoul Korea,
Phone : 82-2-875-0487 Fax : 82-2-875-0486
Website : http://www.ema21.com
E-mail : [email protected]
U.S. Office (EMFA_LAB)
3943 Irvine Blvd #113 Irvine blvd 92602
Phone : 1-714-418-7764, 1-714-338-6197
E-mail : [email protected]
Research Center
San 56-1(301-614) Shillim-dong Kwanak-Gu Seoul Korea
Phone : 82-2-880-7262 Cel : 82-11-1783-8637 Fax : 82-2-878-1452
Website : http://elecmech.snu.ac.kr
E-mail : [email protected]
Copyright ⓒ 2007 EMATECH Co., Ltd. All rights reserved.
Seoul National University,
Electro-mechanics Lab.
EMATECH Co., Ltd.