HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Emergency rescue plan for power station sudden failure

2009-02-19View Original

Thread Content

Emergency rescue plan for power station sudden failure 1. Instantaneous loss of voltage: The power grid lost voltage instantaneously, or lost voltage due to lightning strikes. Two of the three main transformers tripped in a row, but not all compressors tripped. The total load of the entire plant far exceeded the capacity of a single main transformer. emergency measures: If the tripped main transformer cannot be re-closed within one minute, first emergency stop several compressors in the power distribution room until the rated load of the main transformer is 2600A or 3600A. At the same time, one person immediately ran to the compressor workshop and told the operators to send a shutdown signal so that they could handle it in time, and then inform the dispatcher on duty of the reason. two. The compressor cannot stop because of the mechanical problem of the air-conditioning switch, causing the electric circuit to not trip. emergency measures: Use your hand to push up the trip coil lever. If it still cannot stop, you should take a tool or other metal and tap the arc-shaped tripping mechanism of the self-empty switch handle toward the inside of your pocket to cause the handle to automatically trip, disconnect the switch contacts, and the motor stops rotating. Things to note: When pushing the lever with your hand, the person should squat down and see clearly to prevent touching the coil head and getting an electric shock. When knocking on the tripping mechanism, keep your face away from the front of the handle to prevent the reaction force from injuring your face or head when the handle is tripped. three. High voltage phase-to-phase short circuit, single phase to ground short circuit, 35KV switch in the power station. Phase-to-phase short circuit occurs in the line or transformer, or single-phase frame discharge short circuit. emergency measures: If the power grid is not cut off. When the "31" oil switch in the power station is not turned off, emergency press the "31" switch and the stop button to cut off the power. After troubleshooting, follow the power supply procedure to resume power supply. Immediately report to the workshop supervisor after the power outage. At the same time, report to the dispatch and on-duty cadres on duty, requesting support. Four. Capacitor explosion: Capacitor explodes due to phase-to-phase short circuit. Fire. emergency measures: Turn on the automatic switch of the short-circuit capacitor in time. If it cannot be opened, press the low-voltage automatic switch of No. 1 to No. 3 main transformer to cut off the power. The power supply can be restored only after the faulty capacitor is cut open. If the capacitor catches fire, use a dry powder fire extinguisher to extinguish the fire after the power is turned off. When extinguishing the fire, prevent the capacitor oil from spraying and burning people. five. The power cable is short-circuited. The power cable of a certain line in the power station is short-circuited. emergency measures: Turn off the power switch of the short-circuit cable in time. If the switch fails to stop unexpectedly, emergency stop the low-voltage automatic switch of 3 main transformers to cut off the power. After turning off the faulty line switch, resume power supply. Every electrician is required to know how to deal with sudden failures and be able to do so. allow. quick. Electrician workshop

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.