The DT2-550 is suitable for applications up to nameplate ratings, including definite purpose ratings for capacitor bank switching. Extensive mechanical operation design testing (in excess of 10,000 operation), assures trouble-free operation for the lifetime of the circuit breaker. Intensive production leak testing assures superior in-service SF₆ performance. All external surfaces are corrosion resistant, without the need for maintenance-intensive paint.

Flexibility

The DT2-550 is available with design options and ratings to best fit your needs. Designed with a footprint that minimizes foundation costs, the DT2-550 adapts to retrofit live tank or dead tank foundations.

Synchronized Switching

The DT2-550 is an independent pole operation (IPO) circuit breaker provided with one mechanism per pole. The DT2-500 circuit breaker can be supplied with the Point on Wave controller for synchronous closing in capacitor bank and line switching applications, or synchronous opening in reactor switching applications.

Flexible Options

The DT2-550 is available with design options and ratings to best fit your needs. Designed with a footprint that minimizes foundation costs, the DT2-550 adapts to retrofit live tank or dead tank foundations.

The DT2-550 can be provided with reliable spring-operated mechanisms for 2.5 cycle operation or a compact, low-pressure hydraulic mechanism for 2 cycle operation.

The DT2-550 can also be supplied with many customized options such as closing resistors, electronic density monitors and composite bushings. The generous enclosure allows space for up to three current transformers per bushing to accommodate complex measurement and protection schemes.

Installation

The DT2-550 is factory tested, adjusted and prepared for shipment with the bushings disassembled. On-site installation requires only a few simple steps. Thanks to the low energy spring mechanisms and low pressure hydraulic mechanisms, the DT2-550 is considered virtually maintenance free.

The circuit breaker design is optimized for quick and easy installation at site. Where truck shipments are possible, individual poles are shipped with bushings and the operating mechanism assembled. In this case, site work involves installing the poles on the supporting frame and making the necessary low voltage electrical connections. Each phase is factory set to the proper position, eliminating the need for complex rigging at site.

Leading Gas Testing

Every DT1-362 breaker produced by GE Vernova is subjected to a rigorous SF₆ tightness testing protocol. Our state-of-the-art testing system validates the gas integrity of every circuit breaker in the as shipped condition. This proprietary system provides quantifiable evidence of our <0.5% guaranteed leak rate in the exact configuration in which the breaker is delivered.

Certified Quality

The DT1-362 is suitable for applications up to nameplate ratings, including definite purpose ratings and is uniquely qualified under the latest ANSI IEC standards as C2 class for capacitance switching including back-to-back (very low restrike probability) and for reactor switching applications. Extensive mechanical operation design testing ensures trouble-free operation for the lifetime of the circuit breaker. Intensive production leak testing ensures superior in-service SF₆ performance.

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with the latest IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9011 and ISO-14001 certifications. The center of excellence for dead tank circuit breakers is located in Charleroi, PA (USA).

* Ratings available upon request. Contact GE Vernova for special purpose, high TRV, high X/R or other ratings requirements.

* Alternate values upon request

The reduced energy requirements of the breaking chamber allows for the utilization of the world class FK spring-spring mechanism. The combination of the proven FK drive mechanism and interrupter technology results in a significant reduction of reaction forces, thus reducing foundation design requirements.

Gas Tightness Guarantee

GE Vernova leads the industry in SF₆ gas tightness testing technology including seals, castings, and plumbing systems. Each breaker is factory tested using GE Vernova’s proprietary gas tightness testing system which provides measurable, quantifiable test results on the breaker in its fully assembled, as-shipped condition.

Certified Quality

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with the latest IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9011 and ISO-14001 certifications. The center of excellence for dead tank circuit breakers is located in Charleroi, PA.

Installation and Maintenance

The DT1-245 series is factory tested and prepared for shipment with bushings assembled and prefilled with SF₆ gas, therefore the on-site installation requires only a few simple steps without requiring any special tools. The DT1-245 circuit breaker range has lower maintenance costs and requirements, thanks to an engineering and design philosophy that has focused on these key needs since the inception of the development process.

Grid Solutions at GE Vernova leads the industry in SF₆ gas tightness testing technology including seals, castings, and plumbing systems. Each breaker is factory tested using Grid Solutions at GE Vernova’s proprietary gas tightness testing system which provides measurable, quantifiable test results on the breaker in its fully assembled, as-shipped condition.

Quality

Grid Solutions at GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with the latest IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9011 and ISO-14001 certifications. The center of excellence for dead tank circuit breakers is located in Charleroi, PA.

Installation and Maintenance

The DT1-145R is factory tested and adjusted and don’t require any special tools for installation. Designed with the smallest symmetrical footprint to allow for minimized foundation costs, they are recognized worldwide as easy-to-install and operate circuit breakers. Thanks to the low energy mechanism and lifetime lubricants, the DT series is virtually maintenance free.

The DT1 series on-site installation requires only a few simple steps. For installations where truck shipment is impossible, all DT series circuit breakers can be readied for standard container shipment with only their bushings disassembled.

Pre-insertion Resistors (PIRs)

The circuit breaker random switching can generate voltage disturbances on electrical lines. Placed in parallel of the main contacts of a circuit breaker, a pre-insertion resistor is a technique consisting in operating the circuit-breaker while briefly inserting a resistor during closing operation to reduce overvoltage phenomena such as switching transient voltage. This helps limit the power quality issues and accelerated aging, thus minimizing risks and operation costs. Integral PIRs may be used for switching of lines, transformers, shunt capacitors or shunt reactors.

(without current transformers)

GE Vernova leads the industry in SF₆ gas tightness testing technology including seals, castings, and plumbing systems. Each breaker is factory tested using GE Vernova’s proprietary gas tightness testing system which provides measurable, quantifiable test results on the breaker in its fully assembled, as-shipped condition.

Quality

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with the latest IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9011 and ISO-14001 certifications. The center of excellence for dead tank circuit breakers is located in Charleroi, PA.

Installation and Maintenance

The DT1-145 63 is factory tested and adjusted and don not require an y “special tools” for installation. Designed with the smallest symmetrical footprint to allow for minimized foundation costs, they are recognized worldwide as easy-to-install and operate circuit breakers. Thanks to the low energy mechanism and lifetime lubricants, the DT series is virtually maintenance free.

The DT1 series on-site installation requires only a few simple steps. For installations where truck shipment is impossible, all DT series circuit breakers can be readied for standard container shipment with only their bushings disassembled.

GE Vernova leads the industry in SF₆ gas tightness testing technology including seals, castings, and plumbing systems. Each breaker is factory tested using GE Vernova’s proprietary gas tightness testing system which provides measurable, quantifiable test results on the breaker in its fully assembled, as-shipped condition.

Quality

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with the latest IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9011 and ISO-14001 certifications. The center of excellence for dead tank circuit breakers is located in Charleroi, PA.

Installation and Maintenance

The DT1-145/170 are factory tested and adjusted and don not require an y “special tools” for installation. Designed with the smallest symmetrical footprint to allow for minimized foundation costs, they are recognized worldwide as easy-to-install and operate circuit breakers. Thanks to the low energy mechanism and lifetime lubricants, the DT series is virtually maintenance free.

The DT1 series on-site installation requires only a few simple steps. For installations where truck shipment is impossible, all DT series circuit breakers can be readied for standard container shipment with only their bushings disassembled.

Thanks to its robust design, the DT1-72.5 is a highly reliable circuit breaker even under the most severe operating conditions and is tested to meet or exceed IEEE/ANSI and IEC as C2 class for capacitance switching including back-to-back (low restrike probability) and reactor switching applications. Extensive mechanical operation design testing ensures trouble-free operation for the lifetime of the circuit breaker. Intensive production leak testing ensures superior in-service SF₆ performance.

Certified Quality

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9001 and ISO-14001. The competence center for dead tank circuit breakers is located in Charleroi, PA, USA.

Thanks to its robust design, the DT1-38 is a highly reliable circuit breaker even under the most severe operating conditions and is tested to meet or exceed IEEE/ANSI and IEC as C2 class for capacitance switching including back-to-back (low restrike probability) and reactor switching applications. Extensive mechanical operation design testing ensures trouble-free operation for the lifetime of the circuit breaker. Intensive production leak testing ensures superior in-service SF₆ performance.

Quality components play a key role in the high performance of the unit. DT1-38 components include:

• Third-generation self-blast interrupter chamber
• Pressure relief system for passive protection of both substation and personnel
• Generous space for current transformers
• Field-proven, temperature-compensated density monitor with two-stage pressure switch and three-color dial
• DILO SF₆ filling connection
• Galvanized steel base frame
• Reliable spring-spring-operated mechanism

Certified Quality

GE Vernova designs, manufactures, tests and delivers its circuit breakers in accordance with IEEE/ANSI and IEC standards, maintaining a quality assurance system according to ISO-9001 and ISO-14001. The competence center for dead tank circuit breakers is located in Charleroi, PA (USA).