132-KV cable hit and punctured by excavator machine
Thousands of city residents spent sleepless hours in the intervening night between Friday and Saturday when the 132-KV cable between Moulali and Chilkalguda APTransco substations was hit and punctured by an excavator machine employed by the HMWS&SB contractor.
Though eight 33/11-KV substations were actually affected by the accident, areas served by the Indira Park and Narayanguda substations were the worst hit as they could not be given alternative supply for the whole night and major part of the subsequent day too.
In all, Indira Park, Chilkalguda, Patigadda, Seethaphal Mandi, Bansilalpet, Narayanguda, Clock Tower and Hyderguda substations were affected by the accident. Each 33/11-KV substation serves consumers numbering between 5,000 to 7,000.
“The power went off around 11 p.m. last night and was not restored till noon today. Then it went off again at 4 p.m. and has not come till now, 8 p.m. We were clueless as to what was happening, as the official helpline conveyed only a recorded message that said nothing about the blackout,” said M. Narasimha Reddy, a resident of Jawaharnagar.
Many residents knew there was a major problem only when they saw policemen in uniform guarding the Jawaharnagar section office the next day. Around 50 residents had arrived at the Indira Park Substation during night and sought to know the reason for the power cut, informed the discom officials explaining the reason for police protection.
There was enough reason for unrest among residents as the power supply was only sporadic even on Saturday in many areas around Indira Park. Power reportedly came and went off several times during the day.
The Chief General Manager of the CPDCL, Metro Zone, N. Sarat Chandra Seenu clarified that they succeeded in restoring the supply to many areas in Secunderabad by tapping from the Gunrock and Imlibun substations. However, no alternative supply could be provided for areas that came under Central Circle, owing to the simultaneous conking out of two 33-KV cables between Vittalwadi and Jawaharnagar, and Hussainsagar and Indira Park, on Saturday. It had worsened the situation.
Four feeders supplying to the Indira Park and RTC Crossroads were put on load reliefs as of now, Mr. Seenu informed. He denied officially seeking police protection for substations.
There were reports of blackouts for shorter durations from areas unconnected with the eight affected substations. If loads rise during the coming days, entire city may have to put up with the load reliefs as it had previously done on other occasions.
The 132-KV line between Moulali and Chilkalguda had broken down twice in recent years, necessitating cascading load reliefs throughout the city. Lack of alternative supply line, either underground or overhead, was blamed then, but no steps have been taken to lay one. Had the alternative line been in place, the current emergency could have been easily grappled, opine officials from CPDCL.
Substations of Indira Park and Narayanguda are the worst hit Entire city may have to put up with the load reliefs in coming days
Substations of Indira Park and Narayanguda are the worst hit
Entire city may have to put up with the load reliefs in coming days