Bangalore-based enercon systems pvt ltd has introduced power factor controller,varactor 300. This is compact and lightweight unit giving accurate measurements. These instruments protect and increase capacitor life. These controllers consist of flexible switching programs, protective alarms, and in-built digital power factor meter. These controllers have following technical specifications:
- voltage input: 415 v [110 v on request]
- current input: -5 a [-1 a on request]
- frequency: 50 hz [60 hz on request]
- auxiliary supply: 240/110v[user settable]
- stages: 4 voltage input burden: 0.1 va
- current input burden: 0.4 va
- auxiliary input burden: <2.5 va
- overvoltage withstands: 1000 v for 1sec, 750 v for 1 minute, and 480 v continuous
- over current withstands: 3 ln for 1 second, 2 ln for 1 minute, and 1.2 ln continuous
- c/k adjustment range: 0.05-1
- pf adjustment range: 0.80 ind to 0.90
- cap switching sequence: universal
- switching interval: 20 seconds [3, 40, 180 sec on request]
- delay time on reconnection: 60 seconds [9, 120, 300 sec on request]
- wiring test: checks ct connections as well as the interchange of phases
- low voltage release: >20 ms mains interruption
These controllers include following features:
- separate power supply and measurement inputs.
- unique test function for detection of improper ct wiring simplifies installation
- unique measurement of pf gives more accurate control
- optional 4 programmable switching programs for capacitor banks provide flexibility to match the application
- optional 4 programmable switching intervals for connection/disconnection
- time delay on reconnection of charged capacitors reduces damage and extends capacitor life
- low current signal indicator no-volt release hi-volt release
