Encoders/Decoders used in OLTC's (On-Load Tap-Changers) are electronic devices designed to handle the position information produced by the transformers contact range for a long distance, error free transmission, on highly noisy electromagnetic environments. These are products with high levels of quality and safety to eliminate troubles associated of a device malfunction. Engidesa has a wide range of encoders/decoders with high reliability that can be adapted to each unique need. Most used OLTCs are :
We also have code translators, decoders with current loop outputs (4-20mA), relay outputs, and several related devices.
Contact us if you need to develop unique devices for a special application. | 
