DS DSEN 50123-7-3 2003-AUG-29 Ralway applcatons - Fxed nstallatons - DC swtchgear - Part 7-3 Measurement control and protecton devces for specfc use n dc tracton systems - solatng voltage transducers and other voltage measurng devces
This Standard gives requirements for isolating voltage transducers and other voltage measuring devices used in d.c. railway applications, fixed installations. This transducer is normally positioned between the voltage sensor on the live switchboard conductor or rail and the secondary device, giving galvanic insulation between the input and the output.
