"At the beginning, it was the first circuit line, a differential protection device misoperated because of internal component problems, and the substation switches at both ends of the guide line tripped, which directly triggered the second circuit protection device to make an 'overload action' judgment, the principle you know, between the electric light and flint, the action is very fast, and it affects each other, and this action quickly leads the switches of the substation at both ends of the line to trip. ”

Zhang Yifu frowned and pondered: "Wait, the first line trips and the power goes out, and the second line protection device detects overload, is the 'overload protection action' directly tripped?

"Well, this is a key point, according to the regulations, in the face of overload, it should have been set to 'alarm', not 'trip', which is the mistake of the maintenance personnel, but this is not the most important place. ”

Zhang Yifu quickly asked again: "What about the safe and stable device, is there no action?"

The power grid is a huge collective, with many nodes on it, each node is densely covered with many protection devices, and some nodes are equipped with safety and stability devices. In addition to the function of the substation node to collect and evacuate power, it is to rise and fall the voltage, connect the various local power grids with different voltages, and if the power grid fails, the safety and stability of the substation will respond correctly in time to make up for the deficit, and it will not cause a catastrophe, and the accident can be resolved by itself in the power grid.

"Safe and stable dìng device refuses to move. Zhang Guodong directly said the result. Refusing to move means not moving when it is time to act, just like a soldier who does not fire his gun in the face of an attacking enemy, and is as hateful as a soldier who does not have an enemy to shoot indiscriminately.

"It's such a coincidence. Zhang Yifu leaned directly on the back of the chair, and the two, oh no, three coincidentally got together, and there was no way to talk.

Zhang Guodong waved his hand helplessly: "Heavy power accident." One low probability multiplied by another low probability, just like Murphy's Law says, bad things will happen. Our power grid is always running and can give a long time to prepare for bad things. ”

"This ......," Zhang Yifu was really surprised, "Murphy's Law, isn't it an evil doctrine of capitalism in our definition?"

Zhang Guodong shook his head with a smile: "When I was studying this accident. All methods are used, which is an explanation. ”

"Okay. Zhang Yifu nodded, "In my opinion, this is obviously a problem with the protective device, and the dispatch department is not so responsible." ”

"It's not over, the chain reaction of these two lines tripping has just begun, the power is transferred in a large range, the load of other lines increases suddenly, and the voltage and frequency begin to be unstable, but fortunately, I was at work at that time. We are in a meeting, we all rushed to the dispatch room immediately when we heard the news, the situation has been difficult to clean up, my first reaction was to stop a large part of the unit at the sending end of the power grid, and stop some loads at the receiving end of the power grid, for safety, I have always made the most pessimistic estimate, the accident has appeared. In order to avoid further impact, there should be the spirit of a strong man with a broken arm. On the spot, I ordered the suspension of half of the units at the sending end. ”

"So many ......," Zhang Yifu touched his chest and exclaimed, "Is it overreacting?"

However, he quickly shook his head and said: "It's not excessive, it's just that the scheduling experience is not so sufficient at that time, and everyone may not accept it when it is suddenly mentioned like this." ”

"As I said, I always make the most pessimistic estimates, in order to avoid widespread power outages. And give up half of it, and keep thistle. Zhang Guodong sighed, as if remembering the scene back then, "And it turns out that I should be right." ”

"So you pulled it halfway?"

"Nope. Zhang Guodong shook his head again. At that time, the director and Bagan were present, they reacted with you, thinking that pulling half of the reaction was too much, "The people who are engaged in production, the most afraid is the power outage, and they are also afraid that the production task will not be completed, they think that it is okay to pull some at a minimum, I still insist on pulling half, but it is too wasteful to argue like this, an accident only takes a few minutes to produce a greater chain reaction, and Bagan insisted on it very clearly at that time, saying that he was responsible for the accident." I knew that I didn't have time to fight anymore, so I temporarily compromised, only pulled a small part of the unit and load, and then urgently reported to the dispatch center of the Ministry of Electric Power. ”

"Looks like it's useless......"

"Yes, those grids that consist of seemingly sturdy transformers, towers, and wiring are nothing to mention in the face of the laws of physics. Zhang Guodong waved his arm and said, "The accident is completely uncontrollable, and the voltage is becoming more and more unstable, I am slower to narrate, but in fact, these are things within tens of seconds, I told them again, now I have to pull a lot, except for Jijing, I have to pull." ”

Zhang Yifu was silent, at this time, who has the courage to give this order?

"They didn't say anything, a little frightened, I asked the dispatcher to order, the dispatcher saw that the director and Bagan did not say anything, and did not dare to move, and finally when I picked up the phone, the power flow and voltage of the two regional power grids have been periodically fluctuating, and the voltage has dropped sharply. ”

Zhang Yifu swallowed and foamed: "Oscillation, it has begun." ”

A massive grid oscillation, a terrible disaster.

"Yes, now, I don't need to give an order, wherever I call, it has already tripped. Zhang Guodong sighed for a long time, "I was already completely panicked at the time, my mind was not clear, I should have forcibly ordered the electricity around Jijing to be pulled out, and I stayed in the city, but it was too late to think about it." ”

"The most ...... And finally?" Zhang Yifu also felt a sense of panic.

"The North China power grid oscillated violently, and the dispatching center of the Ministry of Electric Power ordered it to be dissolved. Zhang Guodong said in a deep voice.

"It's unlisted. "Zhang Yifu's whole person is also empty, unraveling, it is not a strong man who breaks his wrist, but a gecko abandoning his tail, if you save zài in the whole, it will affect the whole network, and you must give up, "What about the power supply?"

"Civil and industrial have basically stopped. Zhang Guodong said flatly, "In the summary of the accident, the party and government organs, radio stations, railways, hospitals and other places said that they were not affected, but in fact, some of them were stopped, but the leaders went to do their work and did not report it. ”

"Wait......" Zhang Yifu suddenly reacted to something, "At that time, you were going to pull half, didn't Bagan say to pull less, he was responsible?"

"Huh. ”

“……”

When a person says 'I'm responsible' at a critical moment, don't believe him, maybe he had the determination at that time. But once the responsibility is pursued afterwards, it will change in the face of substantial gains and losses.

"Let's talk about the final accident report. Zhang Guodong was reluctant to talk more, "The direct cause is the misoperation of the relay protection, the expansion is that another relay is mistakenly set up to overload action tripping, and the further expansion is due to the refusal of the substation safety and stability device." ”

"Is it all a matter of succession?" Zhang Yifu sighed.

"Yes. The relay operation is under the dispatching management. Zhang Guodong pointed to himself, "So no matter what happens in the middle, my responsibility cannot be shirked." ”

"I understand, I understand, but are no one else responsible? Shouldn't the quality of this batch of relay devices be traced? The production department is responsible for purchasing the equipment. They stopped your order in the dispatch room, shouldn't you feel guilty when you are held accountable? Take a step back and say, even if you are fully responsible, you will not end up with this result? Give a punishment and deduct a bonus. Wouldn't it be nice to reflect on it for a year or two?"

Zhang Guodong didn't explain again, just took a sip of wine: "In short, it's my full responsibility, I can deal with it as the organization does, those dispatchers, the heads of those regional power grids, and those people in the city and provincial bureaus should not be punished, what I can do in the end." It's about keeping the others. ”

Zhang Yifu especially wanted to scold.

You're not great!

You're stupid, Dad!

Check out today!

These so-called people you keep!

Which has pulled you even a handful!

As for the one you take care of the most!

The one who is responsible for patting his chest at a critical moment!

has grown into such a behemoth!

What a sin to protect him?!

But no matter how turbulent the wind is in his heart, Zhang Yifu has to gag his mouth.

This is the style of a father. Father's belief, father's persistence, mentioning these thoughts at this time will only make him chill, make him regret, and make him unwilling. The past cannot be changed.

The rest of the story, he can already think of it.

Bagan disappeared immediately, and his alleged responsibility was not mentioned again.

Several people met secretly and tacitly introduced a willing scapegoat.

As for whether Zhang Guodong's work was done in the middle of the bagan, and whether there was a promise that "we brothers have to live at least one" and something like that. I don't know, Zhang Yifu only knows that Zhang Guodong is obviously not so likable to the leader at work, and this time the matter can be used to play the topic, and Zhang Guodong is so willing.

"What about the problem of the protective device? What about the problem of the components of the initiator? Is there no accountability?" Zhang Yifu can not ask anything else, just this sentence, I can't help it, from beginning to end it is a problem of protection.

"Later, the protection of that manufacturer was discontinued for a while. ”

"What about then? Didn't you investigate deeply?"

"The accident investigation team is not interested in going deeper. Zhang Guodong wanted to say something, but finally held back.

Ning Lan, who was in the distance, suddenly put down his sweater and pointed at Zhang Guodong.

"Isn't it because Bagan collects money from others? What can't you say?"

"Ning Lan, shut up! They just have a good relationship, how could Bagan make such a disciplinary mistake!" Zhang Guodong's head was bruised, "Besides, it's my responsibility, relay protection operation management is under scheduling, it's my responsibility!"

"I don't tell you, I tell my son. Ning Lan looked at Zhang Yifu, "Yifu, you remember, that bagan is not a thing, after the accident, our family knelt on the ground and begged your father, don't drag him in, look at it now!"

Right now?

Run Chang knows too well now.

Bagan's family history is obvious to all, he just didn't expect that there was a poor character of his old Zhang family in the middle.

"Dad, Mom, don't mention this, I know, you don't want to mention it. Zhang Yifu immediately stopped the topic and looked at his parents, "I shouldn't have brought this up at the dinner table." ”

Zhang Guodong was not angry, poured himself full of wine, and drank it all.

You say he's great, he doesn't hate anyone, it's impossible.

At the very least, he should regret that he had mistrusted someone.

If you let him know what Bagan said to Zhang Yifu in the end, I'm afraid he will be directly dizzy.

Zhang Yifu also discovered for the first time that there was such a catastrophe hidden in this family, and the parents just now were different from the previous bickering, and it was a real quarrel.

For more than ten years, I am afraid that there has been a lot of noise about this matter, all when Zhang Yifu is asleep or not present.

What man can withstand accusations of "wretchedness" and "stupidity"?

What woman would want to complain about her man like this?

At least Zhang Yifu can be sure that no son can endure this matter anymore.

Things that have been in the dust for a long time have come to the table again.

Zhang Yifu understands his father and mother, and they are all right.

For him, the relationship with Bagan is no longer a contradiction, but hatred.

Contradictions have contradictory methods, and hatred has means of hatred. (To be continued......)