The DryDCap is a dry DC capacitor for modern multilevel converter topologies such as used in HVDC-light and SVC-light applications, as well as in motor-drives and other static converters, rail applications etc.
In comparison to conventional wet capacitor designs, the ABB DryDCap boosts following features
§ No risk for leakage and consequent environmental impact
§ High energy density capability allowing for compact converter designs
§ Minimal environmental impact during the entire life cycle
DryDCap is being used in an increasing number of ABB solutions. In addition, the product is aimed at system integrators combining own strengths in converter design with ABB well reputed capacitor technology know-how, as such adding to an increasing number of ABB products designated to the OEM/System integrator channels.
Applications
The DryDCap can be used in a wide variety of modern multilevel convertor topologies where integrators are looking for a Voltage Source Converter solution with high-capacity and reliability. It maintains a minimal environmental footprint as opposed to conventional oil impregnated capacitors.
Premium technology boosts safety and reliability
The DryDCap capacitor design results in great customer benefits:
Self-healing metalized film for stable performance
The product uses self-healing metalized film. If a puncture should occur in the dielectric, it is electrically insulated from the rest of the capacitor. This ensures that the device continues to work normally. The control of the self-healing phenomena is one of the keys to the dry DC capacitor's outstanding performance
Low inductance leads to better protection of the semiconductors.
The low inductance design of DryDCap results in very limited voltage transients occurring when the semiconductors are switching. Consequently, the semiconductors see a lower voltage stress contributing to their longer lifetime.
Segmented electrode ensures a safe end of life.
The electrode segmentation ensures that at end of life the energy going into a puncture is limited to acceptable levels and hence a safe end of life situation is realized.
Highly automated factory for consistency and quality
ABB DryDCap capacitors are produced in one of the world's most modern and highly automated factories, thereby showcasing a high level of consistency and quality by minimizing random variations that could be caused by human interventions. All capacitor elements are subject to stringent routine tests with parameters at or above the required international standards.
Designed for a long service-life, ABB capacitors boast an extremely low failure rate and provide our customers with an added level of safety, a better return of investment and lower maintenance costs.
DryDCap is a another innovation that supports ABB's growth formula PIE- penetration, innovation and expansion- with focus on resource allocation in technology and developing value propositions. It underlines ABB's philosophy of creating ground breaking solutions and offerings for our existing and new customers. It also delivers on ABB's commitment to power and productivity for a better world!
