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We have Mark VIe control system for Frame-6 Gas Turbine. The Mark-VIe has 125Vdc battery charger supply system along with DACA (DC to AC convertor) as redundant power supply.
During last start-up, while giving Crank + start command to Diesel Engine, a cell of battery bank failed due to heavy starting current of 88DS Motor & subsequently our charger got failed to supply the Mark-VIe. Even though the DACA was available as backup power supply with help of UPS, Mark-VIe panel took the shut down.
Surprisingly, the panel re-booted automatically after 1 hrs by taking power from DACA.
Also, we checked the successful change over from DC 125V to DACA in the past as well as after above incident & It is functioning properly.
Our queries are:
Why DACA did not cater the load in case of 125Vdc battery system failure?
How Panel Re-booted after 1hr of period with the help of DACA?
Your suggestion is most welcome to understand this dilemma
During last start-up, while giving Crank + start command to Diesel Engine, a cell of battery bank failed due to heavy starting current of 88DS Motor & subsequently our charger got failed to supply the Mark-VIe. Even though the DACA was available as backup power supply with help of UPS, Mark-VIe panel took the shut down.
Surprisingly, the panel re-booted automatically after 1 hrs by taking power from DACA.
Also, we checked the successful change over from DC 125V to DACA in the past as well as after above incident & It is functioning properly.
Our queries are:
Why DACA did not cater the load in case of 125Vdc battery system failure?
How Panel Re-booted after 1hr of period with the help of DACA?
Your suggestion is most welcome to understand this dilemma