Electricity has now been fully restored in Mumbai and the surrounding MMR region after a near one hour outage, the MSEDCL said.
After October 2020 and February 2022, another power outage was reported in parts of Mumbai and Thane on Tuesday after Kalva Pagda transmission line tripped.
The outage comes at a time when Maharashtra is reeling under a power deficit pegged at around 2,500 mw, which has led the state discom to compulsorily cut power supply to some pockets, and outages in February this year and October 2020.
Some parts of central Mumbai like Dadar, Matunga, along with suburbs like Bhandup and Mulund within the municipal limits of Mumbai, and the adjoining cities of Thane and Dombivili faced a power outage from around 10 am, as per reports.
"In the morning bus fault occurred at Padgha sub station. Due to which 400kv lines kalwa padgha 1 and 2 feeding to Mumbai tripped. 400 kv padga Bableshwar 1 and 2 tripped and 220 kv lines had tripped which resulted in off supply in some parts of Mumbai and MMR region. 400kv Bableshwar 1 and 2 taken in service at 10.30 hrs and 10.33 hrs respectively. Kalwa padgha 1 and 2 taken in service 10.33 hrs and 10.36 hrs respectively," MahaTransco said in a statement.
All substation supply was restored by 11:08 am, MahaTransco said."At 10:08 Hr's, due to 400kV Bus-fault at 400kV HVDC 2 Bay, all 400kV, 220kV lines tripped at Padgha substation. Accordingly, load affected at 220kV Temghar, PAL, Wada, Kamba, Vasai, Kolshet, Colourchem, Anandnagar, Jambhul, Palava Substations. Also supply at 100kV Bhiwandi, Ambernath, Shahapur, Murbad, Mohane, Pise, Panjarapur, Dombivali substations affected.
Faulty 400kV HVDC 2 bay, isolated.
400kV Bus Supply restored at @ 10:30 Hrs
220kV Bus supply restored at 10:34 Hrs.
100kV Bus supply restored at 10:49 Hrs.
All substation supply restored by 11:08Hrs."
The MSEDCL has said that the outage was possibly due to grid failure and is currently probing the incident.
"There was burst at Padgha centre of Transmission. .. power supply restoration started in phased manner. Every feeder will be restored in an hour," said Chandrakant Dange, Jt MD, MSEDCL.
"Due to breakdown (bus trip) in 400 KV substation at Padgha, power supply to customers of Dombivali, part of Kalyan, Ambernath, Badlapur of MSEDCL, which has power supply on Padgha to Pal 220 KV high pressure line has been disrupted," MSEDCL had said.
A spokesperson for Tata Power, a private sector utility, said as per an initial assessment, some parts of Mumbai experienced electricity failure due to Maharashtra State Electricity Transmission Company Ltd (MSETCL) line tripping, as part of the 400KVKalwa Grid, which supplies power to Mumbai and suburban areas.
"As per initial assessment , Tata Power would like to inform you some parts of Mumbai experienced electricity failure due to MSETCL line tripping as part of the 400KV Kalwa Grid which supplies power to Mumbai and suburban areas.In order to maintain grid balance load shedding might be initiated. Power will be restored once the MSETCL line gets energised," the spokesperson said, adding that efforts are on to restore power supply.
An Adani Electricity spokesperson said, “The power outage caused due to tripping at Tata Power’s Dharavi Receiving Station due to tripping of 400 kV Mahatransco transmission system affected our consumers in Chembur, Mankhurd, Govandi, Santacruz and Bandra area. However, through proactive network rearrangements Adani Electricity could restore entire power supply within 40 minutes of the incident.”
Many of the affected areas had started reporting restoration of power after about 70-80 minutes.
The financial capital generally does not face any mandatory power cuts as part of the load shedding, but has faced troubles in the past, including a disruption that lasted up to 18 hours in October 2020.
In the previous episode, the suburban train network - called as the lifeline of the megapolis - had also come to a halt.
