Overview

Design

The building block of each CLMD capacitor unit is a capacitor winding. These windings undergo vacuum treatment to ensure consistent electrical characteristics. Each winding is then placed in a plastic case and

encapsulated in thermo-setting resin in order to obtain a perfectly sealed element. Elements are combined together to form the capacitor unit.

Electrical characteristics

Dielectric losses are less than 0.2 Watt per kvar. Total losses, including discharge resistors, are less than 0.5 Watt per kvar.

Available for single and three-phase systems The elements are placed inside a box made of sheet steel and connected in such a way as to supply the single or three-phase power at the required voltage and frequency.

Safe performance throughout the capacitor’s life
● The dry type dielectric makes the CLMD capacitors leakage free, minimizing the impact on the environment.
● The sheet steel box is filled with vermiculite which is an inorganic, inert and fireproof material that can absorb the energy produced or extinguish any flames in case of a possible defect at the end of an element’s life.
● In the event of a fault developing in the dielectric of the capacitor, the metallized electrode adjacent to the fault is immediately vaporized, thus isolating the fault. The capacitor then continues normal operation. This is commonly called the ‘self-healing’ principle.
● The capacitor windings are provided with a sequential disconnecter ensuring that each element can be reliably and selectively disconnected from the circuit at the end of its life.
● CLMD capacitors are provided with thermal equalizers to ensure effective heat dissipation. Discharge resistors are also included.
● The use of robust terminals minimizes the risk of damage during installation and reduces maintenance requirements.
● The capacitors comply with the requirements of IEC 60831-1 & 2.
High performance in-house metallized film
Completely integrated manufacturing process has resulted in the development of a special high-performance in-house metallized film from which all CLMD capacitors bene-fit. This film gives high breakdown strength, excellent peak cur-rent handling capability, and high capacitance stability and has an optimal self-healing design and a long life.

Technology parameters