The diagram in figure 2 shows a static bypass switch connected across a ups. Fig1 shows how the static switch connects the critical load to either conditioned power from the ups or raw mains from the bypass supply.
How Ups Uninterruptible Power Supply Systems Works
Ups static switch diagram. Explains the differences between transient voltage and surge suppr. A static ups system usually consists of a battery to provide continuous source of electrical power. A ups bypass switch is a non essential addition to an uninterruptible power supply system that while not integral to ups operation is definitely useful in the event of maintenance or repair. A rectifiercharger to maintain battery charge and to provide input to inverter when utility power is available. The static ups is called static because throughout its power path it has no moving parts although it has auxiliary moving parts such as cooling fans. Silicon controlled rectifiers of which the internal structure is made up of.
One of these is the static switch which allows the ups output to be transferred seamlessly between conditioned power and raw mains in response to different threats and failure modes. Gold medal at the 74th poznań international fair for the static transfer switches series ss ssn sst sstn. The ups could be a double conversion or a delta conversion or rotary type. In some installations the bypass supply could be provided by an on site generator. Also the static bypass switch is used to bypass the ups so that. A static power transfer switch consists of three basic parts.
A typical static ups consists of the components shown in figure 2. A static bypass switch automatically and instantaneously transfers the load to the mains electricity supply when theres an internal fault or failure with the ups system. Below we look at the static switch and its role within the ups. A breaker or a bus assembly. Ups components showing static switch. A static switch to transfer load automatically and without disturbance.
Below we look at the static switch and how it contributes to ups functionality. In effect running on bypass the circumvents the ups ie. Rectifier batteries and inverter and ensures power continuity while the ups is fixed or swapped out. Control system and metering system. The static bypass switch provides a means to accomplish high speed transfer to the bypass path in case of ups failures. An explanation of how uninterruptible power supplies operate with animated block diagrams.
The core items you need in order to be protected in the event of power failure are a ups and a battery to supply the power under standard operation this should be all that is required. The block diagram of a static switch is shown below. Static transfer switch sstn400ac400 the quality system has an iso90012000 certificate which covers research and development design production and servicing of industrial electronic products. An inverter to provide power to load during normal operation. Double conversion topology is shown because it is the most common design. Ups components showing static switch.
Parts of a static transfer switch.
Gallery of Ups Static Switch Diagram
