Gas-insulated Switchgear ELK-04
32Pages

Product Brochure Gas-insulated Switchgear ELK-04 Modular System up to 170 kV, 4000 A, 63 kA Power and productivity for a better world1

Content Innovation by Tradition 3 Bilding Block System 4-5 Functional Modules 6-21 - Circuit Breaker 6-7 - Circuit Breaker Operating Mechanism 8-9 - Combined Disconnector and Earthing Switch 10-11 - Make-Proof Earthing Switch 12 - Cable End Unit, Gas-to-Air Bushings 13 - Current and Voltage Transformers 14-15 - Completion Modules, Gas Compartment System 16-17 - Control and Monitoring 18-21 Combination of Modules 22-23 Execution Examples 24-27 - Double Busbar Arrangements 24-25 - Single Busbar Arrangements 26-27 Value Added, Innovation, Quality 28 Engineering, Project Handling, Service 29...

Innovation by Tradition ELK-04 in 1% circuit breaker arrangement Dcades of experience create the basis for a mature technology ABB is one of the technology leaders in the range of gas-insulated switchgear. Nobody has more hands-on experience, gathered in thousands of applications, in all climates, operat-ing conditions. The ABB portfolio for gas-insulated high voltage switchgear comprises several modular designed model ranges for voltage ratings from 52 kV up to 1100 kV More than 14000 installed bays in almost 2500 substations in over 70 countries demonstrate their value every day. This...

Building Block System ELK-04 - a model of success since 1992 The ABB portfolio for gas-insulated switchgear has seen continuous upgrades and improvements since the end of the sixties. Market and customer requirements are met by innovative solutions. For instance, the ELK-04 gas-insulated switchgear was developed in such a manner that a complete bay fits within one standard industrial shipping container. At the time of its market launch in 1992, ELK-04 was designed for a rated current of 3150 A, a rated short circuit current of 40 kA and a rated voltage of 170 kV. Depending on the...

ELK-04 in double busbar arrangement Gas-insulated Switchgear ELK-04 | Building Block System 5

Circuit Breaker Core of every switchgear - the circuit breaker Circuit breakers are the most important modules of switchgear. Their wide flexibility significantly influences the scope of a space saving design of the complete substations. Basically, ELK-04 circuit breakers are equipped with self blast interrupters, with one interrupter unit per pole. They require minimum maintenance and only a low amount of switching energy. Depending on customer requirement a multiplicity of circuit breaker enclosures with large and small flange dimensions are available. Hereby, the substation's layout...

Innovative and safe circuit breaker technology requiring minimum space The interrupting units deployed in the 40, 50 and 63 kA circuit breakers are standardized and multi-type-tested components. They show only minor differences and they are not only used for ELK-04 gas-insulated switchgear. Those interrupting units are applied in other products of the ABB high voltage switch-gear portfolio as well (e. g. conventional air-insulated circuit breaker modules). All interrupting units are characterized by the consistent separation of the continuous current contacts and the auxili-ary contacts for...

Circuit Breaker Operating Mechanism Wear-free force transmission The hydromechanical spring operating mechanism of the circuit breaker combines optimally the wear-free force transmission of a hydraulic system with the robustness of a mechanical spring operating mechanism. Hydromechanical spring operating mechanism are not only used for the complete ABB portfolio of gas-insulated switchgear in the range of 52-1100 kV. Due to the easy and fast adaptation, they are successfully applied in more than 100 different applications worldwide. The excellent features of this operating mecha-nism family...

A Operating mechanism in position "OPEN" position, springs not charged HMB operating mechanisms combine the advantages of classical hydraulic operating mechanisms (wear-free force transmission) and purely spring operating mechanisms (energy storage in metal springs). But in contrast to classical hydraulic operating mecha-nisms a hydromechanical spring operating mechanism does not need any external piping at all. The advantage of the multiple stacked disk spring column © results in a high energy density requiring minimum space. This is the case for switching ON as well as for switching OFF....

Disconnector and Earthing Switch Integrated technology Two diffrent types of enclosures are available to integrate the combined disconnector and earthing switch into the building block system. On the busbar side an enclosure with 3 flanges is usually applied. On the feeder side the enclosure typically contains 4 flanges. Both types are made up of the same elements under high voltage. For maximum safety, both the disconnector and the earthing switch are equipped with separate control units. Thus, inadvertent mechanical or electrical operation is pre-vented. Busbar disconnector and earthing...

Feeder disconnector and earthing switch module The feeder sided disconnector and earthing switch module allows the connection of a voltage transformer. The electri-cal connection can be made either ahead of or behind the insulating distance. This means, the voltage can be measured either on the station or line side. The connecting flange of the voltage transformer also serves as a test flange for the high voltage test of the substation or the cable. In general this module is combined with a voltage transformer, a make-safe earthing switch and a cable end unit or a gas-insulated line. In...

Make-Proof Earthing Switch Mechanical routine test of the make-proof earthing switch Maximum security by full short circuit current withstand capability The make-proof earthing switch can safely switch against full short circuit current. This module can be placed on the feeder side or on the busbar side. It drastically reduces the effects of incorrect switching operation. The make-proof earthing switch is equipped with a spring operating mecha-nism to ensure very fast switching. The operating mechanism is loaded by an electrical motor and contains all required components for a safe...