The electronic potentiometer type EPN-110DN forms part of a complete DEIF series of relays for protection and control of generators, and is applicable to both marine and land-based installations.
The potentiometer converts the relay output of a PI step controller - for example one of the DEIF load sharing units type LSU.. or one of the DEIF synchronisers type FAS.., or any other type of PI step controller provided with relay outputs - to a control voltage for the speed governor/AVR.
Measuring principle :
The EPN-110DN is provided with three inputs:
“▲” (frequency or voltage increase)
”▼” (frequency or voltage decrease)
“RES” (reset of the unit).
On activation of one of the inputs “▲” and ” ▼”, the analogue output of the potentiometer to the speed governor/the AVR is changed correspondingly.
The EPN-110DN is equipped with two LED indicators on the front of the unit, which are lit when their input (“▲” and “▼” respectively) has been activated.
Output signal : Potentiometer “OUTPUT” (0 to ±1 V DC x 1, x 5 or x 10) . The range (“x 1", “x 5" or ”x 10”) is selected by means of two DIP switches accessible from the front of the relay.
Integrating time : Potentiometer “TIME” (2.5 s to 25 s x 1 or x 10) . This setting thus determines how quickly for example a load sharing will be carried out. The range (“x 1" or “x 10") is selected by means of a DIP switch accessible from the front of the relay.
Offset : Potentiometer “OFFSET” (-25 to 0 to 25 % of output) .The point where the control loop starts.
- Control of electronic governors
- Setting of integrating time
- Adjustment of output signal
- Offset adjustment
- LED indication for activated input
- 35 mm DIN rail or base mounting
Borna Niroo Karan (Bornika) is the exclusive agent of DEIF in the fields of consultation , sales and distribution of power industry products including Electronic potentiometer products .