Response Time

M‑0067E Tapchanger Control – Specification

The M‑0067E will respond to 5/8% voltage change in 0.2 seconds, ensuring freedom from hunting on

minimum bandwidth.

Voltage Reduction Options

One‑ or Two‑step Voltage Reduction: Resistors for one or two pre-selected steps of voltage reduction will

be mounted on the printed circuit board at the factory.

Three‑step Voltage Reduction: Resistors for a maximum of three pre-selected steps, will include the

internally-mounted resistors mentioned above, plus an additional externally-mounted resistor sized by the

factory.

Instantaneous (non‑time delayed) Voltage Reduction: Circuitry is added at the factory.

50 Hz Operating Frequency Option

This option is available for use in countries outside the continental United States and Canada. The unit will

be shipped with the standard 60 Hz operating frequency unless otherwise specified.

Low Voltage Protection: Outputs are blocked from operating at input voltages below approximately 60 Vac.

A proper raise output will be obtained down to this threshold.