Launch of Consumer/Home Owner registration process!
We are pleased to announce the commencement of the Consumer/Home Owner Registration Process on Community. Consumers/Home Owners may now proceed to register by clicking on Login/Register. The process is straightforward and designed to be completed in just a few steps.
Relays X Voltage surges.
APC UPS for Home and Office Forum
Support forum to share knowledge about installation and configuration of APC offers including Home Office UPS, Surge Protectors, UTS, software and services.
Search in
Improve your search experience:
Exact phrase→Use quotes " "(e.g., "error 404")
Wildcard→Use * for partial words(e.g., build*, *tion)
AND / OR→Combine keywords(e.g., login AND error, login OR sign‑in)
Keep it short→Use 2–3 relevant words, not full sentences
Filters→Narrow results by section(Knowledge Base, Users, Products)
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2021-06-2908:05 PM. Last Modified: 2024-03-2101:06 AM
Relays X Voltage surges.
The electrical engineers know that a sudden change in the state of the electrical current is one of the many causes of voltage surges. One of these sudden changes in the state of the the current slow occurs inside every UPS, specially the cheaper ones.The component that causes this is the very well known, relay. This information is available in one of the Schneider Electric document about voltage surges available at:
"A sudden change in the established operating conditions in an electrical network causes transient phenomena to occur. These are generally high frequency or damped oscillation voltage surge waves (see Fig. J1).
They are said to have a slow gradient: their frequency varies from several ten to several hundred kilohertz.
Operating voltage surges may be created by:
- The opening of protection devices (fuse, circuit-breaker), and the opening or closing of control devices (*relays*, contactors, etc.)
- Inductive circuits due to motors starting and stopping, or the opening of transformers such as MV/LV substations
- Capacitive circuits due to the connection of capacitor banks to the network
- All devices that contain a coil, a capacitor or a transformer at the power supply inlet: *relays*, contactors, television sets, printers, computers, electric ovens, flters, etc.
My Question is:
What APC do to deal with this problem in all products that uses relays like UPSes, Voltage regulators, Audio/Video power Conditioners... I've once read that there are many techniques to solve this problem, but that there are very cheap products, specially those made in third world countries that do not do anything to avoid surges coming out of relays...