3695 Programmable Electronic Voltage Burden

HAEFELY / Tettex

3695 voltage burden

The 3695 is a universal high accurate voltage burden for standard voltage ratings with freely adjustable power steps up to 75 VA. With the additional burden extension type 3697 the power range is expandable up to 400VA. This programmable voltage burden unit is ideal for integration with the 2767 Automatic Instrument Transformer Test Set or 2769 Automatic Voltage Transformer Test Set in a full remote controlled instrument voltage transformer test system.

3695 Features

  • The universal voltage burden is suitable for standard voltage ratings. Power levels are selectable over a wide range (up to 75 VA) with cos β = 0.1 to 1 at 50 and 60 Hz
  • The power range can be extended to 400 VA with an additional passive voltage burden 3697
  • Nine separate burden settings (SN, cos β) can be stored and retrieved as needed
  • High accuracy of 1% (even with additional passive burden 3697)
  • The internal resistance of the measuring system can be set from the keyboard and is automatically compensated
  • Simple use by interactive parameter entry
  • This electronic current burden can also be used with different current transformer test sets, i.e. Tettex types 2711/22, 2765, or from other suppliers
  • Optional IEEE 488 interface for remote-controlled measurements and integration in an automatic measurement process
  • Prompting for interactive input of parameters makes operation simple
  • A cost-effective solution, since a single electronic burden can replace most conventional passive burdens

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