The UPS is interfaced to the Battery Circuit Breaker (BCB) control board using input contacts to retrieve the status of the external switches/breakers and an output contact used to send the trip signal to remotely open the battery circuit breaker.
How does a ups switch to battery mode?
When there is a power outage or some disturbance in the utility, the UPS modules automatically switch to Battery mode. In Battery mode, the battery supplies power to the critical load as in normal UPS system operation. The only difference is that the critical bus in the parallel cabinet is the AC output.
How does a battery circuit breaker work?
The UPS is interfaced to the Battery Circuit Breaker (BCB) control board using input contacts to retrieve the status of the external switches/breakers and an output contact used to send the trip signal to remotely open the battery circuit breaker.
What is an ups & how does it work?
UPS can be used as a protective device for some hardware which can cause serious damage or loss with a sudden power disruption. Uninterruptible power source, Battery backup and Flywheel back up are the other names often used for UPS.
Once the power is restored, the rectifier begins to charge the batteries. To prevent the batteries from overheating due to the high power rectifier, the charging current is limited. During a main power breakdown, this UPS system operates with zero transfer time.
What is a ups single line diagram?
The UPS single line diagram starts with the input power source, which is usually the utility power or generator. This power is fed into the rectifier, which converts the AC power into DC power to charge the batteries. The battery acts as a backup power source, storing energy to be used in case of a power outage.
What is a B connection on a ups?
For power wiring connections or terminal strip locations, refer to Figure 13 in Appendix A of this manual. The B connection is the control wiring connection between the communication panels of the UPS modules and the parallel cabinet.