India: Electricity theft & inferior equipment?

Are these admissions of electricity theft in India?

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Transmission losses are huge: some result from ageing infrastructure, but many are due to electricity theft by politically connected individuals who give away electricity cheaply, or even for free, in return for votes. Customers who fail to pay bills on time ? not least state-owned companies ? are another culprit.

And Inferior equipment?

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Serious allegations of corruption resulting in inferior equipment being bought, including high-voltage switch gear and protection devices, have surfaced in the past.

The authorities have also been blamed for the hasty implementation of unproven and unreliable technology across the national grid. As usual, the government dismissed all criticism.

But now that the skeletons are tumbling out of the cupboard, it is time the policymakers handled the entire issue in disaster management mode.

--
Don McKenzie

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Don McKenzie
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including high-voltage switch gear and

and unreliable technology across the

In an electric system, the production must be exactly as large as the consumption (+losses). When the consumption increases, the production should increase by the same amount. Failing this, the generator speed will drop, dropping the network frequency and finally the frequency protection in each generator will disconnect the generator from the network. With tripping generators, large unexpected currents will flow in interconnects, finally tripping the line, causing even higher currents in remaining interconnects...

If load shedding is not performed quickly, more and more generators and interconnect will trip, causing a constantly spreading network crash.

Reading between the lines, it appears as if the regions refused to drop loads, hence the blackout was spreading all over the country.

To start a dead network, typically a hydroelectric power plant is spun to nominal speed, some local load added, then the next generator is synchronized to this local network and local load is added to it. This procedure is repeated, until all generators and loads are on-line again. This can take quite a while to spin out some power plants, a SCRAMed nuclear power plant can take a day or two.

Reply to
upsidedown

snipped-for-privacy@downunder.com schrieb:

Hello,

the problem is to add the locals loads gradually and to avoid overloads during that procedure. All refrigerators and airconditions on the dead network will start immediately if power ist restored.

Bye

Reply to
Uwe Hercksen

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