Multi-Amp (Megger) Epoch 10

Protective Relay Test Set

Multi-Amp (Megger) Epoch 10
  • Each EPOCH-10 is a self-contained test set and provides variable current, variable voltage, phase shifting,control and monitoring functions
  • Current, voltage and phase anglesettings are each independently incrementedby 4-digit raise and lower pushbutton controls that automatically increment to the next decade whenever a decade-changing value is reached
  • Amplitude and phase angle of the output current and voltage are displayed on large, high-intensity LED displays that remain active even when the test set is under automatic computer control
  • Autoranging is provided on amplitude controls to provide resolution corresponding to the output magnitude
  • Automatic output-current tap selection provides impedance matching to load
  • Typical accuracy of voltage and current outputs is ±0.5% of setting
  • Phase angle accuracy is typically ±0.2% of setting
  • Output frequency is synchronized to input line or crystal controlled at 50/60 Hz
  • Audible alarm and display indication are given whenever amplitude, phase angle or waveform of the outputs is in error
  • A harmonic generator circuit converts the current and potential outputs to either a second, third or fifth harmonic
  • Output-current source has a continuous duty cycle rating of 100 VA
  • Output-potential source has a continuous duty cycle rating of 75 VA
  • Three output-current ranges are provided, with a resolution of 0 .001 ampere on the low range and 0 .01 ampere on the two upper ranges
  • Three output-potential ranges are provided, with a resolution of 0 .01 volt on the low range and 0 .1 volt on the two high ranges
  • The output current of two or three test sets can be connected in parallel to increase the maximum current available to 50 amperes (two units) or to 75 amperes (three units)
  • The output potential of two test sets can be summed together to increase the maximum potential available if the load is not grounded
  • With two or three EPOCH-10s used together, any one of the four or six outputs can be the reference against which the phase angle of all the others is set
  • Optional IEEE-488 interface transforms the unit into an automatic, programmable test system