Do hospitals have an extra power supply in case the electricity goes out? | Top Quora Answers

By Yousuf Mahtab

Yes, they definitely have. Hospitals, Power plants, power systems facilities, plants, manufacturing industries, they all have the extra power supply for backup.

Hospitals have the very advanced, reliable and stable extra power supply in the form of:

1. Automatic backup generators
2. DC Batteries
3. Spare Generators
4. UPS
5. VFDs etc.

Hospitals have usually power coming from two or more sources One from the Power Utility or Grid and other from the generator. Consider the attached screenshot.

1. One power source is coming from the Utility.
2. 2nd power source is coming from the Generator.

There is an Automatic Transfer Switch (ATS) that is usually used in between the generators and Utility.

So if utility power goes out or blackout occurs then ATS will transfer the switch to the Generator side and it will then feed the power to the whole system.

In addition to that, there are some back-up generators and DC batteries are present to tackle any abnormal condition or blackout or when electricity goes out.