Motorized Potentiometer
Motorized Potentiometer
(OP)
Our SR 745 relays (transformer differential relay) has an auto CT mismatch compensation wherein it requires resistive analog input to its terminals A3-A4 for OLTC tap position indication. This means, the relay powers the input and measures the resistance and relates it to the relay's tap changer range settings as part of it's algorithm
Unfortuntatley our power transformer tap changer control only have tap position output in 4-20mA signal.
Is there any motorized potentiometer powered and controlled by a 4-20mA input signal. The resistive output will then be wired to the relay.
Did anyone purchased this kind of device?
Unfortuntatley our power transformer tap changer control only have tap position output in 4-20mA signal.
Is there any motorized potentiometer powered and controlled by a 4-20mA input signal. The resistive output will then be wired to the relay.
Did anyone purchased this kind of device?






RE: Motorized Potentiometer
RE: Motorized Potentiometer
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If we learn from our mistakes I'm getting a great education!
RE: Motorized Potentiometer
Pwrengrds, thanks for the supplier tip.