Static Bypass Switch Circuit Diagram

Schematic diagram of a double conversion ups.

Static bypass switch circuit diagram. When supplies return to normal the static switch automatically transfers the load back to bypass. Lift the transfer switch up to the wall where it is to be installed and label the placement of the mounting screws. Ups bypass mode is when you switch the circuit from going through the ups to going around or. When the ats is isolated for test power is routed through the automatic bypass switch to ensure that critical loads remain powered.

It also shows a static and manual bypass switch. Eaton s bypass isolation contactor type automatic transfer switches include dual automatic switching mechanisms that provide redundancy for critical applications. The purpose of the rectifier is to charge the batteries while at the same time supplying the full inverter. The outback ps2ac comes standard with a dual 50 amp bypass switch and cannot be modified.

The bypass switch is a quick and foolproof way to keep the house powered up from your other ac source. The diagram in figure 2 shows a static bypass switch connected across a ups. The following is a list of the bypass switch part numbers offered for use in the psac and some typical applications. An online system can also use the static switch to transfer the load to bypass if an overload condition drawing excessive current develops.

A rectifier charger to maintain battery charge and to provide input to inverter when utility power is available. In some ups installations the transfer is delayed for a finite time to allow a load protection fuse or circuit breaker to act and clear the fault so avoiding subjecting the load to raw mains or even. If the bypass supply fails the static switch will transfer the load to the inverter output within 3 5 ms for the powerwave 9000dpa and if all mains supplies are missing at the time of transfer the inverter is supplied by the battery. A static switch to transfer load automatically and without disturbance.

Note if you are installing an optional isolation transformer with the mbm refer to the eaton 9155 ups 8 15 kva user s guide for installation instructions. The transfer switch should be placed roughly 1 1 2 feet 45 72 cm away from the midpoint of the main circuit breaker. An inverter to provide power to load during normal operation. The rectifier usually consists of a controlled thyristor bridge which converts the ac mains into dc.

Static bypass switch is employed to provide uninterrupted power to the load during normal to bypass and bypass to normal transitions. A properly designed system should enable this to be performed without loss of power to the load. The ats distributes electrical power to the load while the automatic bypass serves as a backup. Both modules have a make before break mbb maintenance bypass switch.

Ups static bypass switches allow the normal ups normal operation to be circumvented in cases of an overload or fault situation.