Negative electrostatic filtration apparatus

An electrostatic fluid filtration system for filtering a dielectric fluid comprising:

• a housing;
• controller circuitry;
• a pump;
• a sensor;
• a replaceable filter cartridge comprising a plurality of alternating positive and negative electrodes;
• and
• a high voltage power supply electrically coupled to the negative electrodes;
• wherein a negative voltage is supplied from the high voltage power supply to the negative electrodes.

An electrostatic fluid filtration system comprising:

• a housing;
• a pump;
• a high voltage power supply;
• a replaceable filter cartridge comprising:
• a plurality of alternating positive and negative electrodes;
• filtration media consisting of cellulose, reticulated foam, glass fiber, or paper between each alternating positive and negative electrodes;
• an insulated high voltage module that allows for a negative electrical connection between the high voltage power supply and the negative electrodes by one or more insulated pole connectors;
• a top ground plate electrically connected to the positive electrodes by one or more insulated pole connectors;
• one or more handles coupled to the top ground plate;
• a twist lock connection between the replaceable filter cartridge and the housing;
• a dielectric fluid inlet and a dielectric fluid outlet;
• one or more sensors selected from the group consisting of an inline water sensor, an inline particle counter, an oil temperature sensor, a flow switch, a float switch, a digital pressure gauge, and a digital gauge;
• controller circuitry configured to receive data from the sensor and provide an output that can be viewed by a user of the system.