Tap Changer Filter System - On-Line Oil Filtration for Load Tap Changer Compartments
On-Line Oil Filtration for Load Tap Changer Compartments
The TP2 was developed in response to the utility industry's desire to reduce operation and maintenance costs and increase system reliability. On-line oil filtration has proven to be an effective means of combating LTC problems. Tap changers retrofitted with a TP2 enjoy the following:
|The Velcon TP2 is recommended for installation on tap changers that:
|Quality components and comprehensive design features have made the TP2 an industry standard for on-line filtration. All components are fully enclosed in a temperature controlled NEMA 4 cabinet. Operation of the unit is unattended and controlled by a user programmable timer. 3 GPM flow rate keeps turbulence in the reservoir to a minimum and allows for maximum filter life.|
Self Draining-Reversible pump allows quick, no mess, filter changeout. No tools required.
Automatic Shut-off - Pressure switch turns the system off when filter is plugged. Relay can be wired to remote alarm or indicator light.
Oil Make-up - LTC reservoir can be topped off using 3-way valve oil make-up port.
Flexible Operation - Timer can be programmed for two different operating sequences. Battery pack keeps program memory during power loss.
Hour Meter - Records run time of system to assure user consistent operation.
Temperature Controlled - Cabinet heaters and fans keep extreme temperatures from affecting service and prevent condensation build up.
Flow Rate - 3 gallons per minute (gpm).
Cabinet - NEMA 4 enclosure, galvanized steel, painted grey acrylic, with louvers and filters, UL/CSA approved.
Pump - Heavy duty self-priming positive displacement pump with built in pressure relief valve.
Piping - Stainles steel, JIC hydraulic fittings. External connections are 1/2 female npt.
Filter Vessel - Velcon Model VF-71E with manual vent and static pressure gauge is epoxy coated internally and externally. No tools required for filter changeout.
Filter - Velcon model FO-781PL 1/2 comes installed for removal of carbon contamination. (AC-7181/2 free water removing filter cartridge available at no additional charge.)
Sight Glass - 150 psi maximum working pressure for oil flow indication.
Motor - 1/2 hp, 115V, 1-phase, 1740 rpm, TEFC
Control Box - NEMA 12 with high pressure switch, latching relay, forward/reverse switch, programmable timer, magnetic contactor, hour meter, and manual starter/disconnect with 14 amp heater overload.
Wiring - 16ga., all terminal connections are XLA grade.
Power Requirements - 120 VAC, single phase, 14 amps.
Heater and Fan - Adjustable settings, thermostatically controlled.
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