“power failure”-North India July 2012

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North India power failure; Metro outage

Agencies Posted online: Mon Jul 30 2012, 08:53 hrs

New Delhi : Most parts of North India are reeling under severe power outage since early morning today, due to collapse of Northern electricity transmission grid.

The collapse of the Northern power grid impacted public transport systems including, Railways and Delhi Metro, while normalcy is likely to return by afternoon.

"The fault is not known as yet… somewhere near Agra, a failure has happened. We will enquire that," Power Minister Sushilkumar Shinde said.

Even though the exact reason for the grid failure is yet to be ascertained, official sources that many lines tripped and there could be even be the possibility of over withdrawal of power by some states.

"A lot of load has been restored, especially for the essential services such as Railways. The connectivity of thermal plants (supplying power to Northern region) to the grid is expected to be fully restored in the next four to five hours," POSOCO Chief Executive Officer S K Soonee said.

Power System Operation Corporation Ltd (POSOCO), part of state-run Power Grid, manages the transmission grids in the country.

"Emergency transmission services are being restored. The work is on and in a few hours, the National Grid would be completely restored," Power Secretary P Uma Shankar said.

According to officials, presently, electricity from Eastern and Western grids are being diverted to Northern grid.

The Northern Grid, which is estimated to cater to around 28 per cent of country’s total population, had failed due to dense fog back in January, 2010.

The Northern Grid, one of the largest in the country, covers nine places — Punjab, Haryana, Rajasthan, Delhi, Uttar Pradesh, Uttarakhand, Himachal Pradesh, J&K and Chandigarh.

As per the National Load Despatch Centre (NLDC), Northern Grid was affected at around 2.35 am today morning.

NLDC is the apex body to ensure smooth functioning of the national power system.

Officials said that services of about 200 trains were affected due to the power failure.

Most parts of Delhi went without electricity for about eight hours due to the Grid collapse.

"Delhi government or power distribution companies have no role to play in this crisis. It was a major technical fault in the Grid. We expect the situation to be normalised in the next four-five hours (by afternoon)," Delhi government officials said.

The situation was no different in Punjab and Haryana, where engineers were trying hard to restore the supply, officials said in Chandigarh.

"It is going to take at least 4-5 hours to restore the power supply in entire Punjab," Punjab State Power Corporation Ltd, Director Distribution Arun Verma said.

Haryana Special Power Secretary, Tarun Bajaj said that though efforts were on to restore the supply, "it may take few hours to bring situation to normalcy. Every unit takes time to restart".

In Uttar Pradesh, a top official said that about 50 per cent of the supply had been restored.

"The power supply, which was severely affected after 2.30 AM due to failure in the Northern Grid has been restored in 50 per cent of the areas in the state", Uttar Pradesh Power Corporation Ltd (UPPCL) Managing Director Avnish Awasthi said in Lucknow.

He said that supply in Lucknow and Varanasi was restored by 6.30 AM. By 10.30 AM, it was restored in 50 per cent areas in the state, he said, adding that the supply had been re-started in eastern Uttar Pradesh.

In Rajasthan, the situation had started improving in some parts of the state. Electricity supply had been restored in areas of Jaipur and the supply would further improve due course, an official in the state capital said.

Power Trading Director P S Chandelia said that due to rainfall last night, the electricity demand had decreased in Rajasthan.

More than 8,000 MW capacity of the country’s largest electricity producer NTPC, spread across six power plants, had been hit by the grid failure.

"We are trying our best to restore the supply from most of our generating stations by the afternoon," an NTPC official said.

NTPC’s six plants — Singrauli (2,000 MW), Rihand (2,500 MW), Dadri (1,820 MW), Auriya (652 MW), Anta (413 MW) and Badarpur (705 MW) — stopped generating following the failure.

Many of them were being partially restored, the official said.

India has five electricity grids — Northern, Eastern, North Eastern, Southern and Western. All of them are inter- connected, except the Southern grid.

All the grids are being run by the state-owned Power Grid Corporation, which operates more than 95,000 circuit km of transmission lines.

One circuit km refers to one kilometre of electrical transmission line.

Delhi goes ‘powerless’ as northern grid collapses

New Delhi: Almost entire Delhi went without power for about eight hours today due to the collapse of the Northern Grid, putting people to misery on a humid day when water distribution and Metro services were largely affected.

Top Delhi Power Department officials said the technical failure near Agra resulted in the collapse of the Northern Grid, which supplies electricity to Delhi, Uttar Pradesh, Punjab, Rajashtan, Haryana and Himachal Pradesh.

The main casualty of the power failure was the water distribution system as well as Metro services but operations at the airport remained largely unaffected as diesel generating back-up system was put to use.

Metro train services on all six corridors were affected since morning and the Metro was able to run trains only from 7 am, an hour later than the usual time of 6 am.

When the services began at 7 am, only 25 per cent of trains were put on all six corridors affecting commuters. The services were fully restored finally by 9 am.

As there was no power, all the water treatment plants in the city could not treat water, affecting the entire distribution system in the city.

Officials said various power generation plants running on hydel, coal and gas had to shut operations due to the failure and power supply could be fully restored in the afternoon.

"Delhi government or power distribution companies have no role to play in this crisis. It was a major technical fault in the Grid. We expect the situation to be normalised in the next four-five hours (by afternoon)," they said.

Delhi government officials said Power Minister Harun Yusuf is constantly monitoring the situation and officials are in touch with the Union Power Ministry and Power Grid Corporation, which maintains the Northern Grid.

Officials in the power discom companies said the areas under their jurisdiction had to suffer power cuts as supply was snapped.

As majority of the Metro trains were taken off services due to power failure, the frequency of trains dropped to an all-time low of 20 minutes on a few corridors in the first few hours in the morning.

Sources said that though the failure in the Northern Grid is expected to be rectified only in the evening, Delhi Metro was getting hydel power from Bhutan on priority basis along with power from AIIMS and Prime Minister’s House to run the services.

As services were not available in the morning, people were forced to take over-crowded buses and auto rickshaws.

Passengers alleged that there were no proper announcements about the power failure at Metro stations.

Delhi Metro carries around 18 lakh passengers a day.

"It was a horrible night. It was a bit humid and without fans, it was difficult. The morning also proved disastrous as we could not get water as motors could not be operated," said Manjari Mishra, an office-goer.

The minimum temperature was recorded at 28 degree Celsius while the humidity was at 81 per cent.

A Delhi airport official said as soon as there was a disruption in power supply, all essential services like flight arrival and departure, check-in, baggage handling, aerobridge services were shifted to the back-up system.

However, there were reports of air conditioning not functioning in Terminal 1D and some portions of Terminal 3.

Also, there was no power in some retail outlets at the airport. "Overall ninety-five percent of our services remained unaffected", a spokesperson said.

"All flight operations at IGIA are normal with no cancellations and delays. The power supply was restored to DG Systems instantaneously and has been running smoothly," the spokesperson said.

Officials said power was restored in all the major hospitals, which were affected by the outages.

Power supply was also restored in VVIP areas of the city as well as South Block and North Block, where Prime Minister’s Office as well as offices of senior ministers like Defence Minister A K Antony, Home Minister P Chidambaram and External Affairs Minister S M Krishna are located, they said.

However, the officials said, the functioning of five major water treatment plants remained severely affected.

Train movement in north India also was affected due to the outages.

Train services hit in north India due to grid power cut

New Delhi/Chandigarh: Train movement in north India was disrupted this morning due to the collapse of the Northern Grid with around 200 trains running behind schedule.

Railway officials said the train movement was affected in seven divisions — Delhi, Ambala, Agra, Jhansi, Allahabad, Moradabad and Kota.

"Around 200 trains were affected," they said.

A number of passenger trains bound for Delhi and beyond, Chandigarh, Amritsar, Jammu, Ferozepur and Kalka were stranded at way side stations due to failure of electricity, a senior railway official said in Chandigarh.

He said efforts were on to move the passenger trains with diesel engines after detaching them from running goods trains which would remain halted at way side railway stations.

The stations where passenger trains were stranded include Ambala, Kurukshetra, Phillaur, Sirhind, Ludhiana, Phagwara and Karnal.

Some trains were stranded mid way as the electric engines hauling them came to a halt due to failure of power at about 2.30 AM.

Kalka Chandigarh Delhi Shatabdi Express left the local station 90 minutes behind scheduled departure of 6.53 AM after a diesel engine was attached to it.

The trains affected include Amritsar Delhi Shatabdi Express, Allahabad Chandigarh Unchahaar, Lucknow Chandigarh Sadbhavna, Howraha Kalka Mail, Delhi Jammu Mail and a number of other super fast, express, passenger and local trains.

The official said that the signal system had also blanked at a number of places due to the power failure.

Power supply restored in half of UP

Lucknow: Power supply, which was severely disrupted due to failure of the Northern Grid, has been restored in almost half of Uttar Pradesh.

"The power supply, which was severely affected since 2.30 AM due to failure of Northern grid has been restored in 50 per cent areas of the state", MD, Uttar Pradesh Power Corporation Limited (UPPCL), Avnish Awasthi said.

He said that supply in Lucknow and Varanasi was restored by 6.30 AM and by 10.30 AM, supply was restored in about 50 percent of the state.

Power would be restored in western UP as soon as thermal power plants start generation.

Official blames states

The chairman of the state-run Uttar Pradesh state Power Corporation Avinash Awasthi says it could take up to 12 hours to fully restore the electricity supply in eight northern states, including New Delhi, Punjab, Haryana and Rajashthan.

Awasthi said Monday’s outage was the worst to hit India in 11 years.

He said the power grid collapsed as some states apparently drew more power than they were authorized to do to meet the rising demand during the summer.

Power failure: airport services remain unaffected

New Delhi: Operations at the Delhi airport largely remained unaffected even as power supply to six states was hit early this morning due to the failure of Northern Grid.

"As soon as there was a disruption in power supply, all our essential services like flight arrival and departure, check-in, baggage handling, aerobridge services were shifted to our back-up system. So all these operations remained normal", an airport spokesperson said.

"We have one of the best DG (Diesel Generating) back-up system of the world. However, there might be some disruption in our non-essential services", he added.

There were reports of air conditioning not functioning in Terminal 1D and some portions of Terminal 3. Also, there was no power in some retail outlets at the airport.

"Overall ninety-five percent of our services remained unaffected", a spokesperson said.

Delhi Metro passengers have a harrowing time

Delhi Metro’s train schedule went haywire in the morning hours today due to largescale disruption in services owing to a major power failure in the Northern Grid, affecting thousands of passengers who were stranded at various stations.

Services on all six corridors were affected for most part of the morning as trains could not be taken out of depots due to power failure causing severe inconvenience to thousands of commuters who rely on the modern transport system to reach their work places.

Metro services began only at 7 AM as against the usual 6 AM and only 25 per cent of trains were put in service for the first 90 minutes after which others were inducted gradually.

Thousands of commuters were stranded outside and inside Metro stations as they desperately waited for trains though there were constant announcements about the delay and the cause for it.

As majority of the trains were taken off services in the morning due to power failure, the frequency of trains dropped to an all-time low of 20 minutes on a few corridors.

"Between 7 am to 9 am, all trains were inducted into passenger services in a phased manner. Regular services were made available on all Metro lines from 9 am onwards," Delhi Metro spokesman Anuj Dayal said.

However, passengers alleged that the train frequency was very less till noon.

Delhi Metro also get hydel power from Bhutan on priority basis along with power from AIIMS and Prime Minister’s House to run the services, sources said.

Dayal said a team of senior officers from Delhi Metro’s Electrical wing swung into action at 2:30 am to ensure that power supply is resumed for Metro at the earliest.

Separate teams were deployed for DMRC’s Control Centres at Shastri Park and Metro Bhawan to supervise the overall situation and to ensure earliest restoration of power supply to DMRC, Dayal said.

Usha, a software engineer, said she waited for more than 30 minutes at Rithala Metro Station to board a Metro train.

"First I heard that trains will not run. However, I managed to get a train. But the train was slow and it took more than an hour for me to reach Kashmere Gate Station," she said.

Dayal said to manage the crowd at interchange station of Kashmere Gate Metro stations, six trains were planned empty from Vishwavidyalaya to start service from Kashmere Gate with destination to HUDA City Centre.

To manage the crowd at Rajiv Chowk Metro station, three trains were planned empty from Vishwavidyalaya to start service from Rajiv Chowk with destination to HUDA City Centre.

Delhi blames UP, Punjab and Haryana for grid collapse

Delhi government today accused Uttar Pradesh, Haryana and Punjab for overdrawing power from the Northern Grid which led to its collapse, triggering severe power cuts here and asked Union Power Minister to direct the states to follow discipline while drawing power.

Delhi Power Minister Harun Yusuf, quoting official figures, said Uttar Pradesh was overdrawing 900 MW of power more than the allotted quantity from the grid at 2 AM while overdrawal by Haryana and Punjab was 580 MW and 500 MW respectively.

In the evening, Chief Minister Sheila Dikshit and Yusuf met Union Power Minister Sushil Kumar Shinde and requested him to direct the states to maintain discipline while drawing power from the Northern Grid.

The Northern Grid, which caters to power supply in nine states and Union Territories — Punjab, Haryana, Rajasthan, Delhi, Uttar Pradesh, Uttarakhand, Himachal Pradesh, J&K and Chandigarh — collapsed at 2.35 AM today.

Almost entire Delhi went without power for about eight hours today following the collapse of the Grid severely affecting various services including Metro operation, train services and production of water at six major water treatment plants in the city.

"The Grid collapsed due to overdrawal of power by Uttar Pradesh, Haryana and Punjab. To ensure safety of the grid, Delhi has been drawing less power than the allotted quantity.

The Union Power Ministry must take strong action to ensure Grid discipline," Yusuf said.

"The grid collapsed due to overdrawal of power by Uttar Pradesh, Haryana and Punjab. To ensure safety of the grid, Delhi has been drawing less power than the allotted quantity.

The Union Power Ministry must take strong action to ensure grid discipline," Yusuf said.

He alleged Uttar Pradesh, Haryana and Punjab have been overdrawing power from the grid consistently. "As per figures for last two days, these three states have been overdrawing power on hourly basis, forcing Delhi and Rajasthan to underdraw electricity."

Yusuf said power supply has been restored in most parts of the city by around 11:30 AM. Residents in certain localities of West Delhi and South Delhi complained that power supply resumed in their areas only at around 1 PM.

He said supply was restored at Delhi Airport, AIIMS and the Prime Minister’s Office at 4 AM while supply to Delhi Metro and Lutyens Bungalow Zone was resumed at 6:30 AM.

Yusuf said Chief Minister Sheila Dikshit had taken up with the Union Power Ministry the issue of overdrawal of power from Northern Grid by a number of neighbouring states.

Officials said operation at a number of power generation station in Delhi had to be stopped following collapse of the grid and the plants are expected to return to optimum level of production in the late evening.

"The disturbance in the grid also resulted in the tripping of generating stations in Delhi, except Badarpur Tharmal Power Station," they said.

Delhi’s peak demand just before the collapse of the grid was recorded at 3,384 MW and only 153 MW of power could be supplied at 6:59 AM.

The officials said Union Power Ministry arranged supply of electricity from a hydel power station in Bhutan to restore various essential services like metro network.

The officials said power distribution companies have been resorting to load shedding to the tune of around 250 MW on the advice of Northern Region Load Despatch Centre to reduce the load on Agra¿Gwalior inter regional 765 KV line.

Yusuf said a number of power plants, including Rihand, Singroli and Dadri in neighbouring states from where Delhi gets electricity, had to be shut down as precautionary measure following the problem in the grid.

"It will take time to bring the plants to optimum level of production. We hope the situation will return to normal soon," he said.

Link to web-source  http://www.indianexpress.com/story-print/981359/

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