g
Dead Tank Circuit Breakers
72.5– 800kV — Advanced Technology in a Compact, Reliable Design
with Primary
Plus
TM
Pre-engineered solution set that digitizes XD|GE primary equipment and provides factory
installed and configured protection, monitoring, diagnostics and communications.
GE
Digital Energy
Dead Tank Circuit Breakers — 72.5–800kV
363kV Dead Tank SF6 Circuit Breaker
800kV Dead Tank SF6 Circuit Breaker
Robust, High Quality and Reliable Breaker Technology
For over a century, utilities around the world have relied on GE products and
services to increase power system reliability and improve grid resiliency and
responsiveness. As a global leader in grid infrastructure products and services,
GE supports a broad set of utility applications ranging from transmission and
substation automation to distribution networks and smart metering, enabling
greater safety, connectivity and increased security.
Through an alliance with XD Electric®, GE has extended its portfolio to
include high and ultra high-voltage power equipment supporting the highest
transmission voltage levels in the world. XD Electric is one of China’s largest
primary equipment manufacturers dedicated to the research, application and
development of high and ultra high-voltage power transmission equipment.
XD Electric has a broad range of products to transform and direct the flow of
power for industrial, commercial and residential users.
2
The XD|GE alliance provides end-to-end transmission solutions to meet the
growing demand for electricity globally. The combined portfolios of GE and
XD provide a comprehensive range of technology solutions for customers in
the utility sector and energy intensive industries.
The XD|GE breaker offerings are robust in design and are based on proven
technology, yielding high quality products suitable for an extensive range of
applications. XD|GE’s breakers are compact in design and construction with
advanced arc extinguishing technology and self-blast interrupting capability
which significantly reduces product size and improves reliability.
Designed with a modular spring operated mechanism and an integrated
hydromechanical operating mechanism, these circuit breakers improve
product reliability, reduce costs, and minimize maintenance requirements.
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
Key Features & Benefits
Reduced Footprint
Current transformers equipped in the bushing insulators
allow for reduced space and foundations required for
installation.
Compact Design and Construction
Advanced arc extinguishing technology significantly reduces
product size and improves reliability.
Excellent Seismic Performance and
Pollution-Resistant Capability
The dead tank circuit breaker is well-suited for areas with
frequent earthquakes, high elevation or severe pollution.
Maintenance Free Design
Modular spring operated mechanism and integrated
hydromechanical operating mechanism improve product
reliability, reduce costs, and minimize maintenance
requirements.
Primary Plus
XD|GE offers Primary Plus™ for all its critical power delivery
equipment. Primary Plus is a pre-engineered solution set
that provides utilities and large industrial facilities with
a means to reduce the time and labor associated with
substation construction, expansion, and maintenance, while
utilizing technologies and methodologies familiar to existing
engineering resources.
XD|GE’s factory installed and configured solutions include:
• Digitized primary equipment by replacing labor-intensive,
individually terminated copper wires with standardized
physical interfaces and open communications protocols
(IEC 61850)
• Electrical protection systems optimized for each primary
asset and application to monitor and react to fault
conditions
72.5kV Dead Tank SF6 Circuit Breaker
• Highly secure and ruggedized communication network
equipment including industrial strength wireless, fiber optic
multiplexers, and Ethernet switches for an advanced and
reliable communications infrastructure
3
Dead Tank Circuit Breakers — 72.5–800kV
72.5kV SF6 Insulated Breaker
126/145/252kV SF6 Insulated Breaker
The LW24-72.5 is an outdoor dead tank SF6 circuit breaker with self-blast
interrupter technology and a spring operating mechanism.
Type LW24-126/145/252/T outdoor dead tank SF6 circuit breaker product line
incorporates world class advanced technology at these kV ratings.
Self-blast technology is well established and deployed throughout the industry.
When interrupting a fault current, heat generated from arcing will compress the
SF6 gas in the compression cylinder. As a result, highly pressurized gas travelling
through the nozzle will extinguish the arc. Self-blast technology is more efficient
and requires less operating energy than other arc extinguishing methods.
Self-blast technology is used to reduce the operating energy and improve the
interrupting reliability. With this advanced technology, the arc is extinguished
by the highly pressured gas, which is a result of heat generated by the arc
itself. Compared to traditional puffer technology, the operating energy of a
self-blast circuit breaker could be reduced up to 50%.
The operating mechanism used in this breaker, the CT20-II, is a spring driven
technology. The advantages of this spring operated mechanism include improved
stability and reliability, increased stability with ambient temperature changes, and
minimal to zero maintenance given the lack of oil or gas component.
The operating mechanism is a spring design, which makes the product
simple in construction and light in weight with higher reliability and less noise
in operation.
The LW24-72.5 product has received independent KEMA® certification. To
achieve certification, the product passed the back-to-back switching test as
well as the shunt reactor switching test.
This family of dead tank circuit breakers will have independent certifications
from XIHARI, MHI, or KEMA depending on the rating class and design.
This dead-tank breaker design is the most widely produced by XD|GE with
over 2,000 units shipped and in service over the last few years.
Normal Service Conditions
Normal Service Conditions
2.1. Altitude 3000m
2.1. Altitude: ≤ 1000m (not more than 3000m in special condition)
2.2. Humidity monthly 90%
2.2. Humidity monthly 90%
2.3. Max. wind velocity 35m/s
2.3. Max. wind velocity 35m/s
2.4. Pollution class: IV class
2.4. Pollution class: III, IV class
2.5. Typical ambient temperature: -35°C to +40°C
2.5. Typical ambient temperature: -35°C to +40°C
2.6. Max. temperature difference daily: 25°C
2.6. Max. temperature difference daily: 25°C
2.7. Earthquake withstand density 9 degree
2.7. Earthquake withstand density 9 degree
2.8. Ice coating: ≤ 10mm
2.8. Ice coating: ≤ 10mm
2.9. Max. radiance from sun: 1000 W/m2
2.9. Max. radiance from sun: 1000 W/m2
72.5kV Dead Tank Circuit Breaker
4
126kV Dead Tank Circuit Breaker
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
363/550/800kV SF6 Insulated Breaker
The LW13A/23-363, LW13A-550, and LW13-800 family of products represent
the technology platform for the highest kV rated XD|GE dead tank breakers.
Single interrupting units per pole are utilized on breaker products from 363kV
to 550kV without parallel capacitors and pre-insertion resistors. In addition,
double interrupting unit designs are used for products from 363kV up to
800kV. Parallel capacitors and pre-insertion resistors are incorporated when
double interrupting units per pole are used.
Breakers from 363kV to 800kV can carry continuous current up to 5000A
and have interrupting capability for short circuit at either 50kV or 63kA, per
customer specification.
Breakers above 363kV are equipped with the CYA8 hydromechanical
mechanism. The fully integrated hydro-mechanical operating mechanisms are
maintenance-free designs with long-term stability and reliability.
363kV - 800kV series dead tank breakers are tested and certified per IEC®
standards by XIHARI®, the national HV lab in China.
Normal Service Conditions
363kV Dead Tank SF6 Circuit Breaker 50kA
2.1. Altitude: ≤ 1000m (not more than 3000m in special condition)
2.2. Humidity monthly 90%
2.3. Max. wind velocity 35m/s
2.4. Pollution class: III, IV class
2.5.Typical ambient temperature: -35°C to +40°C
2.6. Max. temperature difference daily: 25°C
2.7. Earthquake withstand density 9 degree
2.8. Ice coating: ≤ 10mm
2.9. Max. radiance from sun: 1000 W/m2
550kV Dead Tank SF6 Circuit Breaker
550kV Dead Tank SF6 Circuit Breaker
800kV Dead Tank Circuit Breaker
GEDigitalEnergy.com
5
Dead Tank Circuit Breakers — 72.5–800kV
Technology
lnner Construction
Construction of
Inner
of Interrupter
Interrupter
1. Interrupter
The figure below shows the principle construction of the interrupter. The
pressure of the gas in the puffer cylinder goes up when the gas is heated by
the arc and then compressed by opening movement of the puffer cylinder.
Fixed main
contact
Fixed arcing
contact
Moving main
contact
Piston
This pressurized and compressed gas goes to the arc between the stationary
contact and moving contact. The nozzle concentrates the gas flow to the arc
for efficient cooling.
Trip spring
Trip spring
Cam Cam
Arc
Nozzle
Ratchet
Ratchet
Moving arcing
contact
Puffer
cylinder
LeverLever
Ratchet
Ratchet
wheelwheel
Closing-holding
Closing-holding
latchlatch
2. Spring Operating Mechanism
The design of the spring operated mechanism provides the high performance
required for reliable operation. The lever engaged with the locking device,
which is released when the trip coil is energized, is rotated counterclockwise
by the trip spring (Fig.1).
Closing
trigger
Closing
trigger
Trip-holding
Trip-holding
the
closing
latch spring. The lever is rotated clockwise, compressing the trip spring
latch
Closing
Closing
coil coil
by torque from the cam (Fig.2).
As
soon
as the closing sequence is completed, the closing spring is charged
interrupter
interrupter
openopen
coil coil
by the ratchet linked to the motor (Fig.3).
The cam and the ratchet wheel engaged with the locking device, which is
released when the closing coil is energized, are rotated counterclockwise by
Cam
Fixed
Closing
spring
Closing
spring
finger
Trip trigger
Trip trigger
Closed
position
Fig1.Fig1.
Closed
position
(closing
spring
charged)
(closing
spring
charged)
Trip spring
Ratchet
Closing spring
Lever
Ratchet wheel
Closing-holding
latch
Closing trigger
Trip-holding
latch
Closing coil
interrupter
open coil
Trip trigger
Fig1. Closed position
(closing spring charged)
6
Open
position
Fig2.Fig2.
Open
position
(closing
spring
charged)
(closing
spring
charged)
GEDigitalEnergy.com
Closed
position
Fig3.Fig3.
Closed
position
(closing
spring
discharged)
(closing
spring
discharged)
Dead Tank Circuit Breakers — 72.5–800kV
3. Hydromechanical Operating Mechanism for
Circuit Breakers
The hydromechanical mechanism is built with its functional parts linked by
integrated modules. To keep the operation as relaible as possible, “O”-rings
are used at sealing points, disc-type springs are used to store energy, and two
sets of respectively independent opening control valves are incorporated into
Hydro-mechanical
the
design. This mechanism mechanism
can be operated either in single phase or in three
phase electrically, and can be gang-operated in Hydro-mechanical
three phase mechanically.
Hydro-mechanical mechanism
a. Uncharged,
open position
b. Charged,
open position
1. Low pressure oil tank
a. Uncharged,
2.
Oil lever
indicator
High
pressure
oil
Low pressure oil
open position
3. Operating piston rod
4. High pressure oil tank
5. Piston for charge
6. Support ring
7. Disk spring
8. Auxiliary switch
High pressure oil
9. Oil-filling hole
10. Throttle of close
11. Electro-magnetic valve for close
12. Electro-magentic valve for open
13. Throttle of open
14. Oil drainage valve
15. Energy-store motor
16. Oil pump
17. Pressure release valve
18. Spring position switch
c. Charged,
closed position
a. Uncharged,
open position
b. Charged,
open position
High pressure oil
mechanism
1. Low pressure oil tank
2. Oil lever indicator
1. Low pressure oil tank
3. Operating piston rod
2. Oil lever indicator
4. High pressure oil tank
3. Operating piston rod
5. Piston for charge
4. High pressure oil tank
6. Support ring
5. Piston for charge
7. Disk spring
1. Low pressure oil tank
6. Support ring
8. Auxiliary switch
2. Oil lever indicator
7. Disk spring
9. Oil-filling hole
3. Operating piston rod
8. Auxiliary switch
10. Throttle of close 4. High pressure oil tank
9. Oil-filling hole
11. Electro-magnetic valve
for
close
5. Piston for charge
10. Throttle of close
12. Electro-magentic valve
for
open
6. Support ring
11. Electro-magnetic valve for close
13. Throttle of open 7. Disk spring
12. Electro-magentic valve for open
14. Oil drainage valve8. Auxiliary switch
13. Throttle of open
15. Energy-store motor
9. Oil-filling hole
14. Oil drainage valve
16. Oil pump
10. Throttle of close
15. Energy-store motor
17. Pressure release valve
11. Electro-magnetic valve for close
16. Oil pump
18. Spring position switch
12. Electro-magentic valve for open
17. Pressure release valve
13. Throttle of open
18. Spring position switch
14. Oil drainage valve
15. Energy-store motor
16. Oil pump
17. Pressure release valve
18. Spring position switch
b. Charged,
open position
c. Charged,
closed position
c. Charged,
closed position
Low pressure oil
Low pressure oil
550kV Dead Tank SF6 Circuit Breaker
GEDigitalEnergy.com
7
72.5Dead
– 800kV
Tank
DeadTank
Circuit Breakers
Circuit —
Breakers
72.5–800kV
Innovative Facilities and Rigorous Quality Processes
XD|GE’s technology portfolio is built in state-of-the-art manufacturing and
testing facilities with robust quality processes which provide customers with
products that meet the critical and demanding reliability and environmental
challenges of transmission applications.
Manufacturing Excellence
XD|GE designs a broad range of switchgear in five specialized production
facilities including machining, surface treatment, insulating, housing and
casting.
Additionally, there are two specialized facilities that produce both the spring
and hydromechanical operating mechanisms.
Final production is completed in three workshop assembly lines that total
more than 50,000 square meters. Components such as aluminum enclosures,
cast resin insulators, current and voltage transformers, and operating
mechanisms are manufactured by XD|GE through a completely integrated
manufacturing model.
Advanced Test Facilities
XIHARI®, the Xi’an High Voltage Apparatus Research Institute, is an integral
part of the XD|GE alliance. XIHARI has extensive testing capabilities at its
facility sites, which include a: High Power Laboratory, High Voltage Laboratory,
Artificial Climate Laboratory, EMC Laboratory, and an Operational Test Circuit
for HVDC Thyristor Valves.
The testing hall meets all of the requirements of ISO/IEC® 17025 and houses
some of the largest test equipment in the world, providing the capacity to
test primary equipment as large as 1,100kV AC. The High Voltage Apparatus
Laboratory in XIHARI is a government authorized national high-voltage
apparatus quality supervision and inspection test center. It is an independent
third-party laboratory for type tests, routine tests, performance tests and
certificate tests for high-voltage apparatus. The testing facilities at XIHARI
also include an extension environmental laboratory. Testing capabilities here
include high altitude testing, high humidity testing, and temperature testing
from -70° C up to +150° C.
The switchgear facilities are ISO® 9001 certified, ISO 14001 certified for
environmental management systems, as well as OSHA® 18001 certified for
health and safety management systems.
Exceptional Quality
A focus on quality is an ongoing strategic initiative for XD|GE and that is
evident throughout the manufacturing environment. The quality process
begins with an incoming inspection of all materials to ensure the best possible
inputs before manufacturing begins.
Throughout the production and assembly process, there are multiple
checkpoints, including both visual inspections as well as stopped flow
inspections, all performed to documented test plans. The production facilities
follow strict non-conforming procedures to identify, control and avoid the
use and delivery of non-conforming products. Each production facility has
developed strict environmental standards, including controls of cleanliness,
temperature and humidity, and has controls in place to monitor and manage
to the established standards.
In addition, XD|GE has a dedicated measurment and inspection department
with a certified full time inspector in each of its manufacturing sites. The
measuring and inspection department provides a secondary cross-inspection
for all work in process, as well as finished products, ensuring a high level of
quality is achieved throughout the manufacturing process. First Pass Yield
and Cost of Quality data is maintained and analyzed, per product family,
in order to drive continual product and process improvements and higher
product reliability.
From raw materials acquisition and inspection to finished product, XD|GE’s
breakers are designed to meet rigid quality processes so the installed product
provides the highest level of reliability.
8
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
Support and Service
Global Project Engineering Services
XD|GE is dedicated to helping its customers reach their system objectives
and provides a suite of professional services to assist the successful
deployment and maintainance of XD|GE products and solutions globally.
From design to implementation to post-sales support, a team of technical
and business experts are available to help customers effectively use the
capabilities and product domain knowledge that are available from XD|GE.
This support infrastructure covers the entire life cycle of the product.
From the coordination of transportation logistics to the completion of site
acceptance testing and warranty service, the highly qualified XD|GE team is
available throughout the implementation.
To ensure a high quality of service to meet the needs of each unique
application, XD|GE has a global field service team of highly experienced and
dedicated individuals. Coupled with a vast network of high voltage power
equipment domain experts, XD|GE is able to support a broad range of
applications in various environments.
Finally, XD|GE offers a 24x7 global support service to address and direct any
customer application and field questions.
Specialized Installation and Commissioning
• Logistics including coordination of ocean and inland transportation
• Installation services include receiving, rigging, unloading and labor
(mechanical and electrical)
• Test commissioning
• Site acceptance testing
Post-Sales and Installation Support
• 24x7 global customer service
• Emergency response hotline
• Several customer support access points available to ensure timely
support (telephone, e-mail, fax, or web)
• Global spare parts reserve
• A global network of maintenance and repair facilities
4800kV/720 kJ Impulse Voltage Generator &
±2000kV 30mA DC Voltage Generator
GEDigitalEnergy.com
9
Dead Tank Circuit Breakers — 72.5–800kV
Primary Plus
Pre-Engineering Secondary Equipment
Primary Plus, XD|GE’s supplemental offering to its primary equipment, is a pre-engineered, factory
installed solution set that allows utilities to reduce the time and labor associated with substation
construction and commissioning. Primary Plus uses technologies and methodologies familiar to
existing resources and skill sets.
• Digitized primary equipment for replacing labor-intensive, individually terminated copper wires
• Electrical protection solutions to monitor and react to fault conditions
• Secure and ruggedized communications infrastructure devices including wireless radios, fiber optic multiplexers
and Ethernet switches
Digitized Substation
MultilinTM HardFiber System
Key Benefits
• Using the Multilin HardFiber system, XD|GE
can deliver primary equipment with digital
communications. The Multilin HardFiber system
digitizes analog signals from primary assets utilizing
IEC 61850 communications, reducing total life
costs of protection and control through labor and
resource optimization.
• Saves up to 50% of Protection & Control
labor costs
• This factory-installed solution reduces the amount
of labor-intensive, individually terminated copper
wire connections with pre-terminated copper and
fiber optic cables with standard physical interfaces
and open digital communications.
• Eliminates the majority of copper wiring to better utilize resources for the design,
building, commissioning, and maintenance of power system protection and control
• Robust and simple architecture for deploying IEC 61850 process bus
• Improves employee safety by leaving potentially dangerous high-energy signals
in the switchyard
• Reduces the chances for operational mistakes made during isolation and
restoration after routine maintenance
• Built as an extension of the Multilin Universal Relay (UR) family of products,
suitable for a wide array of protection applications
• Rugged, hardened, and secure switchyard interface enabling
NERC/CIP compliance
Electrical Protection & Control
Advanced Relays for Primary
Substation Equipment
Primary Plus utilizes the Multilin C60 Breaker
Protection system or Multilin F60 Feeder Protection
system to provide primary protection of critical substation
equipment. Multilin relays are substation hardened
devices that provide comprehensive protection, control,
automation, and monitoring of high voltage substation
circuit breakers. With fast, deterministic execution of
programmable automation logic, extensive I/O options,
and integrated high-speed peer-to-peer communications,
Multilin protection devices can receive and execute
commands and at a fraction of the cost when compared
to a traditional hard-wired configuration.
10
Key Benefits
• Advanced circuit breaker monitoring
and control in a single platform
• Complete IEC 61850 Process Bus solution providing resource optimization
and minimizing total protection & control lifecycle costs
• Modular hardware architecture allow for device configuration
flexibility, meeting the needs of most circuit breaker applications
• Advanced fault and disturbance recording, including internal device health
monitoring, eliminating the need for external devices and maximizing asset life
• Robust network security enabling critical infrastructure
Protection and NERC/CIP compliance
• Advanced automation capabilities for customized protection and control systems
• Simplified system integration and access to information through the use of multiple
communication options and protocols, including native support for IEC 61850
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
Dimensions and Foundation
72.5kV SF6 Breaker
LW24-72.5
LW24-72.5
2530
2320
10°
2115
10°
1160
30°
30°
2806
Grounding
Terminal
32
56
300
885
981
2×4-M10
120 920
120
32
56
1280
M20
85
2363
3650
1360
920
280
150
392
500
500
1280
940
400
80
16
R6
All measurements
are in millimeters (mm)
GEDigitalEnergy.com
11
Dead Tank Circuit Breakers — 72.5–800kV
126-145kV SF6 Breaker
LW24-126
LW24-126/LW24-145
2030
1560
251
3200
1510
1510
C
2
N1 10
M
2-
14
22x2.4
100
530
225
45
370
175
175
180
1000
6-ø12 180
120
34
610
120x200
200
R7
120
50
85
50
R7
200
630
100
250
370
GEDigitalEnergy.com
(865)
2070
650
250
38
220
280
610
100
650
1300
1800
250 100
1205
120
38
1300
100
1500
1000
500
500
12
2*4-M10
50
1670
2300
3820
3900
1070
1750
1000
1530
1000
45 30
102
40
4-ф
3820
40
800
Dead Tank Circuit Breakers — 72.5–800kV
252kV SF6 Breaker
LW24-252
outline and foundation drawing
LW24-252
3000 - 4000
3000 - 4000
(2860)
P2
591
(2511)
(5165)
P1
1320
1220
Phase B
Phase C
P1
P1
P1
t22 Aluminum
Alloy Plate
9-φ18
2860
45 45
A-A
145
Phase A
.5
R9
A
A
45 45 45
10
P2
Grounding Block
P2
10
0°
0°
800
P2
10
800
0°
Terminal Pad
800
924
Cement
Foundation
A-A
70
320
E
E
245
Grounding
Position (2 places)
A
E
320
C
E
500
300
E
E
220
1380
1380
245
1220
A
Anchor Bolt
M30*800
145
All measurements
are in millimeters (mm)
C
373
GEDigitalEnergy.com
13
Dead Tank Circuit Breakers — 72.5–800kV
363kV SF6 Breaker
LW23-363/ Y
363kV DTB with single-breaker
LW23-363
4000-5000
4000-5000
873
510
700
920
1500
6534
(3463)
(1438)
14
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
363kV SF6 Breaker
LW13-363/Y
Outline Drawing of 363kV DTB
with double-breakers
LW13A-363
5000
200
2200
2180
5000
1000
1120
5
84
1100
4620
800
820
800
80
Anchor Bolt
M30X800
1800
3325
7300
2500
All measurements
are in millimeters (mm)
125
GEDigitalEnergy.com
15
Dead Tank Circuit Breakers — 72.5–800kV
LW13A-550/Y
550kV DTB
Outline Drawing
550kV SF6 Breaker
LW13A-550
Phase C
Phase B
Phase A
8000
2850
2450
8000
80
I
(1000)
(1180)
0
80
1100
800
5
R=84
0
30
150
125
800
16
Anchor Bolt
M30X1000
1000
1000 105
1600
3195
2150
8395
1500
6190
GEDigitalEnergy.com
All measurements
are in millimeters (mm)
Dead Tank Circuit Breakers — 72.5–800kV
800kV SF6 Breaker
LW13-800
General Assembly Drawing
LW13-800 DTB
11000
10249
11000
7607
500
P1
3820
2000
13146
500
630
1460
1580
800
Ground
Grounding
Block
190
LCP
1680
560
3864
4239
3820
3000
12966
12108
4681
4523
5620
P1
P1
36
Terminal Pad
LCP
9-Ø24
65 65 65
65 65
220
R900
Aluminum
Alloy Plate
P2
Size of
Grounding Block
70
15
GEDigitalEnergy.com
70
Copper Soldering
70*70
100
130
15
P2
40
P2
17
Dead Tank Circuit Breakers — 72.5–800kV
Technical Specifications
Main Technical Data of 72.5kV-800kV Dead Tank Circuit Breaker*
PRODUCT TYPE
LW24-72.5
LW24-126
LW24- 145
LW24-252
LW23-363
LW13A-363
LW13A-550
LW13-800
1. Electrical Parameters
1. 1 Rated voltage (kV)
72.5
126
145
252
363
363
550
800
1. 2 Rated frequency (Hz)
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
1. 3 Rated continuous current (A)
3150
3150
3150
4000
3150/4000/
3150/4000/
5000
5000
5000
1. 4 Rated short circuit
breaking current (kA)
40
40
31.5/40
50/63
50
50/63
50/63
50/63
1. 5 Making current (kA)
100
100
80
125
125
125/160
135/171
135/171
1. 6 Rated peak withstand current (kA)
100
100
80
125
125
125/160
135/171
135/171
1. 7 Specific creepage distance (mm/kV)
25/31
25/31
25/31
25/31
25/31
25/31
25
25
1. 8 Short line fault breaking current (kA)
36/30
36/30
28.35/23.63
45/37.5
45/37.5(50kA); 56.7/47.25(63kA)
1. 9 Out of phase breaking current (kA)
10
10
7.875
12.5
12.5(50kA)/15.75(63kA)
1. 10 Rated short-time power-frequence
withstand voltage (kV): To earth
160
230
275
460
510
510
740
960
1. 11 Rated lightning impulse withstand
voltage (kV): To earth
350
550
650
1050
1300
1300
1675
2100
1.12 Last pole to clear factor
1.5
1.5
1.5
1.3
1.3
1.3
1.3
1.3
4
4
3
3
3
3
3
3
LW24-72.5
LW24-126
LW24- 145
LW24-252
LW23-363
LW13A-363
LW13A-550
LW13-800
2. 1 Type of mechanism
Spring
Spring
Spring
Spring/
Hydro-mechanical
Spring/
Hydro-mechanical
Spring/
Hydro-mechanical
2. 2 Mechanical endurance (times)
≥ 5000
≥ 5000
≥ 5000
≥ 5000
≥ 5000
≥ 5000
≥ 5000
≥ 5000
1.13 Rated short-time withstand
duration(s)
PRODUCT TYPE
2. Mechanical Parameters
2. 3 Rated operating sequence
Hydro-mechanical
O-0.3s-CO-180s-CO
2. 4 Close time (ms)
≤100
≤100
≤100
≤110
≤100
≤100
≤100
≤100
2. 5 Open time (ms)
≤30
≤30
≤30
≤30
≤20
≤20
≤20
≤20
2. 6 Breaking time (ms)
≤60
≤60
≤60
≤60
≤40
≤40
≤40
≤40
40-50
40-50
40-50
50-70
40-50
40-50
40-50
40-50
≤3
≤4
≤3
≤5
≤3
≤4
≤3
≤4
≤3
≤5
≤2
≤3
≤2
≤3
≤2
≤3
≤2
≤3
2. 7 Close-open time (ms)
2. 8 Operating asynchronism (ms)
Between poles
Open
Close
≤2
≤4
2. 9 Operating asynchronism (ms)
Across break
Open
Close
2. 10 Number of breaks per pole
1
1
1
1
1
2
2/1
2
2. 11 Three phase operation/
single phase
3p
3p
3p
3p/1p
1p
1p
1p
1p
0.4/0.5
0.5
0.5
0.6
0.5
0.5
0.5/0.6
0.6
2. 12 Rated SF6 gas pressure (Mpa)
2. 13 Leakage of SF6 gas per year (%)
≤0.5
≤0.5
≤0.5
≤0.5
≤0.5
≤0.5
≤0.5
≤0.5
2. 14 Weight (kg)
1550
3400
3400
9000
10000
18000
18000/15000
60000
* Additional products available - see product
ordering page for complete listing.
18
GEDigitalEnergy.com
Dead Tank Circuit Breakers — 72.5–800kV
Ordering
LW
SF6 Circuit Breaker
Outdoor
Design Sequence No.
-
*
*
/
*
*
-
*
LW
24
13/ 13A
23
Rated Voltage
72.5
126
145
252
363
550
800
Operating System:
T: Spring Mechanism
Y: Hydro-mechanical Mechanism
Rated Current (A)
T
Y
1250
2000
3150
4000
5000
Rated Interrupting Current (kA)
31.5
40
50
63
Dead Tank Circuit Breaker Product Line
With Spring Mechanism:
Dead Tank Circuit Breaker Product Line
With Hydro-mechanical Mechanism:
LW24-72.5/T1250-31.5
LW24-252/Y4000-63
LW24-72.5/T2000-31.5
LW23-363/Y3150-50
LW24-72.5/T2500-31.5
LW23-363/Y4000-50
LW24-72.5/T3150-40
LW13A-363/Y3150-50
LW24-126/T3150-40
LW13A-363/Y4000-50
LW24-145/T3150-31.5
LW13A-363/Y5000-50
LW24-145/T3150-40
LW13A-363/Y3150-63
LW24-252/T4000-50
LW13A-363/Y4000-63
LW13A-363/Y5000-63
LW13A-550/Y5000-63
LW13-800/Y5000-63
Ordering Notes: Please provide the following information when ordering:
1. Type, description of product, and type of mechanism.
2. Rated voltage, rated current, short circuit breaking current.
3. Current ratio, accuracy class and quantity, rated output capacity.
4. Pollution class: class III or class IV.
5. Control voltage of mechanism: DC220V or DC110V.
6. Voltage of energy-store motor: AC380V or AC/DC 220V or AC/DC 110V.
GEDigitalEnergy.com
Toll Free: 1.877.605.6777
Direct: 678.844.3777
gedigitalenergy@ge.com
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Atlanta, GA 30339
19
GEDigitalEnergy.com
Digital Energy
Toll Free: 1.877.605.6777
Direct: 678-844-6777
gedigitalenergy@ge.com
2018 Powers Ferry Road, Atlanta, GA 30339
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GEA-12723B(E)
English
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