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Transformer Regulation
2V200 Tap Position Indicator (TPI) Voltage to Frequency Sender Unit
제품특성Suitable for interfacing to tap changers with binary or BCD TPI outputs
Suitable for application with voltage divider TPI circuits (Resistor values in the range 20 – 400 ohms may be employed)
50V DC output drive circuit to improve contact whetting performance
Frequency output immune to line disturbance
Two core un-shielded cable between sender unit & 2V164
Isolated power supply
Plug in measuring module
Double insulated high impact polystyrol case
The 2V200 is specifically designed for operation with the RMS type 2V164 Voltage Regulating Relay (VRR) & application on power transformers fitted with on load tap changers. The 2V200 provides a noise immune interface between the tap changer & a remote tap position indicator (TPI), display.
The 2V200 is designed to interface with tap changers using either binary / BCD coded signals or a traditional voltage divider circuit. The 2V200 generates a 50V DC output to connect to the auxiliary contacts on the tap changer. These contacts are often prone to high resistance & voltages lower than 50V may prove unreliable due to low whetting currents. The 2V200 converts the tap changer auxiliary contact inputs to a low frequency signal proportional to the tap position.
The 2V164 VRR converts this frequency to a voltage signal through an optically isolated input which is then feed into an A-D converter. The tap position is displayed on the front panel of the 2V164 based on the pre-programmed maximum tap position.