HV Yard controls upgrade

22kV isn’t to be trifled with.  High Voltage yards and their strict control requirements mean that retrofitting an existing 30+year old site with a more modern platform requires considerations such as minimising production down time, while at the same time ensuring current regulatory compliance.

ArroTek’s Scope

ArroTek were subcontracted to develop a HMI for the safe operation of ABB HV gear, enabling remote visibility of the status of the HV relays and disconnectors, power, current and voltage of each circuit and a variety of load and condition alarm monitoring.  Control of the isolation relays without entering the HV room is now also possible.

ArroTek’s solution

A simple mimic display enables operators to see the supply condition of each circuit

Advanced features and scalability

Being so old, the existing instrumentation had no ability to monitor power, current, power factor, phase balance, gas pressure, etc. – all of which are now available.  Trends, alarm messages, etc. and all the modern functionality of a present day SCADA system are available.