SBC - Kranti Veera Sangolli Rayanna Bengaluru: Station in Garden - Dinesh Kumar

Looks like there indeed was an issue, but the news reporter in the above article added a bit of his/her own creativity and reported it.
During the testing of the rake, it caused harmonics in the OHE. Due to the harmonics, the nearby substation was tripped (fuses blown for safety) and some locomotives in the section did not receive any power. This was rectified shortly, and according to the ICF spokesperson, the harmonics issues were resolved before shipping the rake to Delhi. The train itself is in a good condition.
Harmonics are high...
more...

frequency signals, higher than the standard 50Hz of A/C voltage supply in the OHE. All electrical equipment generates such harmonics. After due testing and identifying the harmonics, they are compensated for, by adding filters in the circuits to filter out the harmonics.
This is why the rake should have undergone proper long distance trials around Madras first (may be trial runs between Madras-Bangalore first) instead of being taken all the way north, far away from ICF, which manufactured the rake.
Political showmanship trumps common sense!

Pura matter pata lg gaya ab mujhe..
.
Hua ye tha Ki testing hui thi t18 ki jisme ohe se electricity le k motors run kia jata h uska ulta step kia gaya means wheels ko speed me ghumaya aur fir motors se electricity produce hui aur ohe me vapas gai, jisse usi line pe khdi 1 emu aur 2 eloco k components fuk gae, as vo 40 years old insulators the ...
So...
more...

matter kuch aesa h
SourCe:YT video