Compact Switchgear
Compact Air-Insulated Breaker Assembly CABA
Compact switchgear
GE Vernova’s Compact Air-Insulated Breaker Assembly (CABA) is a modular, compact switchgear system combining a live tank circuit breaker, double sided disconnect switch and other AIS equipment mounted on a common frame. It can be installed in greenfield substations or retrofit into an existing substation. CABA can be installed on existing foundations and is designed for space savings due to its compactness.
Compact Switchgear
Compact Air-Insulated Breaker Assembly CABA
Compact switchgear
GE Vernova’s Compact Air-Insulated Breaker Assembly (CABA) is a modular, compact switchgear system combining a live tank circuit breaker, double sided disconnect switch and other AIS equipment mounted on a common frame. It can be installed in greenfield substations or retrofit into an existing substation. CABA can be installed on existing foundations and is designed for space savings due to its compactness.
GE Vernova Advantage
CABA leverages GE Vernova’s expertise in high voltage equipment, including circuit breakers and disconnect switches, to provide a reliable substation solution. GE Vernova has more than 100,00 circuit breakers with spring-spring operating mechanisms in service throughout the world.
Key Features
- Complete factory assembly allows CABA to easily replace existing equipment for a high quality solution with reduced delivery time
- Ideal for replacement or upgrade of circuit switcher installations providing full circuit breaker function in the same space
- Reliable spring-spring operating mechanisms
- Meets the requirements of IEC and IEEE/ANSI standards
Key Benefits
- Modular design for green field or retrofit installations
- Improved substation protection
- No new foundations needed for retrofits with standardized modules
- Easy installation and commissioning
- Circuit breaker performance in a circuit switcher footprint
Specifications
Live Tank circuit breaker
| Rated voltage | kV | 72.5 | 145 | 245 | 245 |
| Circuit breaker type | GL 309 | GL 312 | GL 314 | GL 314X | |
| Circuit-breaker operating mechanism | FK3-1 Spring | FK3-1 Spring | FK3-6 Spring | FK3-4 Spring | |
| Rated continuous current | A | 3,150 | 3,150 | 3,150 | 3,150 |
| Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
Rated dielectric withstand | |||||
| - Power frequency 1 minute dry | kArms | 160 | 310 | 460 | 460 |
| - BIL (1.2/50s impulse wave) | kVpeak | 350 | 650 | 900 | 1,050 |
| - 2s chopped wave kVpeak | kVpeak | 452 | 838 | 1,160 | 1,160 |
Rated short-circuit breaking capacity | |||||
| - Perioduc component | kArms | 40 | 40 | 40 | 63 |
| - percentage DC component | % | 53 | 53 | 53 | 68 |
| - First pole to clear | 1,5 | 1,5 | 1,5 | 1,5 | |
| - Interrupting time cycles | 3 | 3 | 3 | 3 | |
| - Rated short-circuit making current | kApeak | 108 | 108 | 108 | 170 |
| - Rate out-of-phase breaking capacity kA | kA | 10 | 10 | 10 | 16 |
| Rated line-charger breaking capacity (C2 Class) | A | 100 | 160 | 400 | 400 |
| Rated capacitor bank breaking capacity (C2 Class) | A | 630 | 400 | 1,200 | 1,200 |
| Rated operating sequence | o-0,3-CO-15s-CO | ||||
| Ambient temperature (without blanet heaters) | oC | ||||
| * Low temperature performerce to -50oC is available with the used of mixed gas (SF6/CF4) | |||||
Three phase disconnector - double side break
| Rated voltage | kV | 72.5 | 145 | 245 | 245 |
| Disconnect switch type | S3CD | S3CD | S3CD | S3CD | |
| Disconnect switch operating mechanism | Manual handcrank* | Manual handcrank* | Manual handcrank* | Manual handcrank* | |
| Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
| Rated continuous current | A | 3,150 | 3,150 | 3,150 | 3,150 |
| Rated continuous current 30 minutes emergency 4100 | A | 4,100 | 4,100 | 4,100 | 4,100 |
Rated dielectric withstand (IEEE/ANSI Standard) | |||||
| - Power frequency 1 minute dry | kV | 175 | 335 | 465 | 465 |
| - Power frequency 10 second wet | kV | 146 | 275 | 385 | 385 |
| - BIL (1.2x50 per second rated withstand) | kVpeak | 350 | 650 | 900 | 1,050 |
Rated short time current | |||||
| - Three (3) second | kArms | 63 | 63 | 40 | 63 |
| - Momentary current | kA | 100 | 100 | 100 | 100 |
| - Peak current | kApeak | 164 | 164 | 164 | 164 |
| - Capacitance current switching capability | A | 1 | 1 | 1 | 1 |
| - Transformer magnetising current switching capability | A | 3 | 3 | 3 | 3 |
| Open gap length (IEEE/ANDI standard) | Inch | 22x2 | 38x2 | 50x2 | 50x2 |
| Open rotation gap | Degrees | 80 | 80 | 80 | 80 |
| Rated ice breaking capability | Inch | 0.75 | 0.75 | 0.75 | 0.75 |
| Ambient temperature (without blanet heaters) | oC | -50 to +50 | -50 to +50 | -50 to +50 | -50 to +50 |
| * Motor mechanism on request | |||||
Drawings
CABA Dimensions
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Lentronics E1MX
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Multiplexing Solutions for Critical Communications
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Access and Transmission Multiplexer
Reliable and fast communication is vital for continuous operation of power delivery systems and mission-critical operational services. GE Vernova’s Gridcom DXC suite of products offer hybrid platforms to enable aggregation and transport of all operational services over optical fibers.
For many years now, telecommunication networks have been undergoing significant changes. Increased bandwidth requirements and a large variety of services to be transported have led to much more versatile but also complex access and transmission equipment, adapted for the next generation of networks.
Gridcom DXC Family
Access and Transmission Multiplexer
Reliable and fast communication is vital for continuous operation of power delivery systems and mission-critical operational services. GE Vernova’s Gridcom DXC suite of products offer hybrid platforms to enable aggregation and transport of all operational services over optical fibers.
For many years now, telecommunication networks have been undergoing significant changes. Increased bandwidth requirements and a large variety of services to be transported have led to much more versatile but also complex access and transmission equipment, adapted for the next generation of networks.
Fulfilling Utility Requirements
- Access cross-connect Gridcom DXC (PDH)
- Enhanced Digital cross-connect Gridcom eDXC (PDH/SDH/SONET/MPLS-TP/CE)
- Transport cross-connect Gridcom DXC-S (SDH/SONET/MPLS-TP/CE)
The Gridcom DXC/eDXC offers generic slots capable of supporting such interfaces as E1/T1, Ethernet 10/100Mb compatible with IEC 61850, xDSL, G.703, RS232, RS422, RS485 V35, X21, 2/4W E&M, FXO, FXS, Terminal Server, C37.94, as well as short and long haul optical interfaces. All vital parts, such as the power supply and the processing board can also be 1+1 protected.
The Gridcom eDXC/DXC-S/DXC-H provides enhanced capacities on transmission STM1/4/16, MPLS-TP, Carrier Ethernet, 1GE and 10 Gigabit Ethernet connectivity and Gridcom eDXC supports all PDH boards available on e-terragridcom DXC equipment.
DXC-H supports MPLS-TP LSP 1:1/1+1 protection and ERPS, with protection switching time<50ms. Ethernet, MPLS section, and end-to-end OAM are also provided for monitoring service integrity and performance. The DXC-H’s powerful functions enable customers to provision a service-grooming hub, ring, or mesh packet network with ultimate ease.
Reliability & Availability
By concept and design, Gridcom DXC/eDXC/DXC-S is a cost-effective solution to match a high level of availability and harsh environmental constraints.
In addition, it offers a modular approach in terms of protection mechanisms like controller redundancy, shared power supply units as well as 1+1 protection for all transmission and optical interfaces, providing a suitable solution to critical applications.
Management System
Different management solutions are available, answering to different network complexities and customer maintenance organizations for remote configuration and management:
- iNET: Element Management Layer, this solution responds to a centralized monitoring of equipment with Graphical User Interface (GUI).
- iNMS: Network Management Layer is the right solution to fully operate a complex network. In addition to all conventional features usually proposed for the backbone level (Security, graphical user interface, statistics, etc), iNMS includes versatile tools for automatic path creation and configuration of equipment simply by a simple "mouse click."
- High-availability schemes are available for both iNET and iNMS.
- All equipment are SNMP native and offer direct compatibility with the GE Vernova telecom management system Sentinel.
Application Network Example
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Bushings
GE Vernova provides cost effective solutions to facilitate the electric stress control of your equipment. Our bushings for electrical transmission offer AC and DC solutions with high-value customer benefits: longer lifetime and higher reliability, increased safety, no maintenance and installation flexibility.
Since 1923, GE Vernova's bushings have been synonymous with excellence, quality and competence in the high voltage field. GE Vernova has its manufacturing plant and center of competence and development in Sesto San Giovanni (Milan), Italy.
Bushings
GE Vernova provides cost effective solutions to facilitate the electric stress control of your equipment. Our bushings for electrical transmission offer AC and DC solutions with high-value customer benefits: longer lifetime and higher reliability, increased safety, no maintenance and installation flexibility.
Since 1923, GE Vernova's bushings have been synonymous with excellence, quality and competence in the high voltage field. GE Vernova has its manufacturing plant and center of competence and development in Sesto San Giovanni (Milan), Italy.
The technology
| RIP Resin Impregnated Paper |
|
| RIS Resin Impregnated Synthetics |
|
| OIP Oil Impregnated Paper |
|
| Hybrid |
|
| SF₆ insulated |
|
Power Transformers Bushings
OIP technology
Oil to air transformer bushings, for the connection to the HV transmission or distribution system
| 36-1200 kV | 52-170 kV | 25-765 kV |
| PNO | PSO | PAO |
Oil to SF₆ for the connection to the SF₆ metal enclosed bus ducts
| 72,5-1050 kV |
| POBO |
Oil to oil for the connection to the HV cables
| 72,5-1050 kV |
| PCTO |
RIP technology
Resin Impregnated Paper transformer bushings
| 24-550 kV | 72,5-245 kV | 24-52 kV | 72,5-420 kV |
| PNR Oil to air application | PCTR Oil to oil application | PTFR/PTHR Oil to air transformer bushings | POBR Oil to SF₆ application |
Power Generator Bushings
RIP technology
Generator High Current RIP bushing up to 30 kV-45000 A
PGFR
Wall Bushings
Gas insulated technology air to air
up to 800 kV AC & DC applications
PWS (AC solution) and PWHS (DC solution)
OIP Technology
Up to 420 kV - PWO
-----
DC converters bushings
Hybrid technology for DC converter bushings (OIP + SF₆ up to 1,100 kV; RIP + SF₆ above 420 kV)
PHI
GIS bushings
Up to 550 kV
PABS
Grid’s Resin Impregnated Paper (RIP) bushing passes an impressive internal arc test
In October 2013, an internal arc test was performed on a 420 kV RIP transformer bushing, type PNR 420 kV 1250A, in ZKU independent high voltage and high power test laboratory in Prague, Czech Republic.
The main aims of this test were to demonstrate the RIP bushing’s explosion proof capabilities, and to check its safety in the case of very dangerous events following an internal severe electrical fault.
To demonstrate this, a 420 kV normal production bushing was subject to an internal arc test with a short circuit current of 63 kA applied for 0.5 s. Safety is demonstrated if no parts are projected outside a circular safety area of 3 m radius around the bushing, and if no explosive events occur in the air side, i.e. the top part, of the bushing.
This video shows the effect of the simulated fault. The value of the measured injected energy during this test is impressive. The energy amounted to 13 MJ, which is equivalent to a 1000kg mass launched at a speed of 580 km/h or 360 mph!
This test, typical for other components such as instrument transformers, is a first for transformer bushings. In 2011 GE VERNOVA Grid was the first in the world to perform such an internal arc test on a 420 kV bushing based on the traditional oil-impregnated-paper technology and now it has repeated this success on the new 420 kV bushing, based on RIP technology.
Grid R&D teams have successfully tested our 820 kV/4500 A Bushings for HVDC converters, placing us as one of only three players to manufacture this technology. The bushings were designed in Milano, Italy and have now been fully type-tested and successfully completed their temperature rise tests over the rated current limit to confirm their suitability to meet all requirements.
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