Chinchwad: A sudden explosion accompanied by a fire occurred at the Bijli Nagar 220/22 KV power substation operated by Maharashtra State Electricity Distribution Company Limited (MSEDCL) in Chinchwad around 12:00 PM on Sunday, September 6, 2026. Triggered by a short-circuit inside the high-voltage transmission bay, the event generated a loud blast-like sound and sent thick plumes of black smoke rising into the sky, triggering panic among residents and motorists along Spine Road. MSEDCL emergency crews and Pimpri-Chinchwad fire brigade units brought the fire under control without any reported casualties, though critical electrical infrastructure sustained severe damage that tripped multiple feeders across the twin cities. For official grid status bulletins, maintenance updates, and outage tracking, visit the MSEDCL Portal.

Ground Sequence: High-Voltage Circuit Failure and Dense Smoke

According to eyewitnesses and preliminary field reports, the failure initiated within the substation's transmission circuitry during standard midday load operations:

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  • Breaker Poles Shatter: The electrical surge generated intense thermal pressure, fracturing multiple circuit breaker poles and incinerating surrounding terminal cabling.
  • Plumes of Black Smoke: Dense smoke billowed from the high-voltage yard and remained visible across Akurdi, Pradhikaran, and parts of Nigdi, prompting numerous emergency calls to civic control rooms.
  • Fire Contained Rapidly: Quick intervention by emergency responders prevented flames from jumping to the adjacent heavy-capacity oil-cooled step-down transformers.

Infrastructure Damage: 110-Volt DC Relay Panel Fails

Technical assessments by MSEDCL line engineers confirmed that the internal damage impacted automated protection systems:

  • DC Control Supply Loss: The substation's vital 110-Volt DC control relay panel supply was knocked offline, disabling automatic fault isolation across multiple circuits.
  • Multiple Feeders Tripped: Out of 30 total 22 KV feeders operating from the Bijli Nagar facility, 7 to 8 major feeders tripped immediately following the line surge.
  • Localities Affected: The interruption disrupted power supply to residential societies, commercial establishments, and industrial units across Bijli Nagar, Chinchwad Gaon, Pradhikaran, and sectors in Nigdi.

Restoration Operations Underway

MSEDCL engineers have begun rewiring burnt DC control cabling and installing replacement circuit breaker assemblies. Officials stated that load is being incrementally diverted through alternate transmission rings, with disconnected feeders expected to be brought back online in phases as safety verifications conclude.