Subject an energy meter to a large variety of combinations of load with respect to its voltage, current and power factor
Power Source: 0 to 300V AC, 0 to 50A with Power Factor adjustment facility from 0.1 Lag to 0.1 Lead through unity with seven steps
Digital Voltmeter: 0 to 300V AC
Digital Ammeter: 0 to 1.000
Digital Power Factor Meter: 0.1 Lag - Unity - 0.1 Lead
Mains ON MCB: This is TPN MCB of 4A Rating provided for switch ON/OFF
Adjust Voltage Variac: This is Single Phase / 2A variac provided for adjusting the output voltage from 0 to 300V
Adjust Current Variac: This is a Single Phase / 2A variac provided for adjusting the load current from 0 to the range selected by switch
Set Power Factor Switch: For adjusting the power factor with seven steps is provided. With this coarse adjustment of power factor can be done
Adjust Power Factor Fine Variac: This is a Single Phase / 2A variac provided to fine tune the power factor
Output Terminals: Two terminals for voltage & two terminals for current are provided at the front panel to connect the `Meter under Test' to the test set-up
For testing 3-phase energy meters, 3 such set-ups are housed in a single unit This set-up is used for production test of energy meters. It is normally multi-station, such as a 40 station test set-up.
Three Phase Phantom Loads Salient Features:
Voltage Source: Adjustable 0 - 300 Volt/600VA with Static phase shifting arrangement to obtain 90° lag through unity to 90° lead with respect to Current Source. Facility to switch to 70% and 120% of set voltage will be provided for creep test.
Current Source: 0 - 100A adjustable in steps with switch and fine by variac; Switching arrangement will be made to get 100%, 400%, 500%, 600% and 800% of basic setting. Also, arrangement will be provided to select 0.4%, 5%, 10%, 20%, and 100% of setting for carrying out Starting Current Test.
Digital Ammeter 3 & 1/2 digit Class 1
Digital Voltmeter 3 & 1/2 digit 0 - 300V class 1
Power factor meter to read phase angle between 90° lag - Unity - 90° lead.
Line frequency Indicator 40hz to 60hz
Outputs on insulated terminals