C-Cap has to be mounted mechanically to the bus-bar with 4 screws. Make sure that the top surface of the C-Cap forms a good thermal contact with the bottom bus-bar. It is a good practice to improve the thermal conductivity of this interface with thermal conductive paste.
Use torque of 5 Nm when tightening the 4 M6 screws.
C-Cap is supplied with 2 straight SMC metal water fittings for inlet and outlet, and with an L shaped plastic water connector with a plastic tube connecting between the top and bottom electrodes.
If the customer prefers, Celem can provide the C-Cap with 4 straight SMC metal connectors. This is useful for customers who prefer to separate the water circuits of the different potentials.
Tightening torque specification for the large nut on the central rod is 8Nm.
Bottom bus bar is usually not cooled directly, therefore Inlet cooling water should be connected to the top electrode as this electrode cools the bottom bus-bar.
Water flow requirement varies with number of capacitors in the same water circuit and the power on each capacitor. When operating at maximum power, the electrodes of the C-cap should not exceed 40C degrees.
The charts below depict the water flow vs. the water pressure drop on a C-cap when electrodes are chained in series.
Starting from April 2019 every C-Cap will be equipped with a normally closed thermal switch that opens once the temperature of the capacitor raises above 55C. Customer can use this switch to get direct real time indication of any cooling issues and other malfunctions in the system.