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| - | Charger : in several UPS systems due to the character of the design a different battery charger is applied, this is more common on sub 60kVA UPS systems and is extremely common on small sub 3kVA models.
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| - | Battery : here is the power storage section and is kept charged eith...
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| - | Rectifier : this section of the UPS converts the incoming alternating current (ac) supply to direct current (dc) and can offer charging current for the battery and also the supply requirements for the inverter.
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| - | Charger : in numerous UPS systems due to the nature of the design a different battery charger is applied, this is quite common on small sub 3kVA models and is more common on sub 60kVA UPS systems.
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| - | Battery : here is the power storage area and is kept charged either by the rectifier or perhaps a separate charger. Their storage capacity is normally displayed, as AH (ampere hour), which is the amount of amperes of current that the battery can supply for an hour. There will be an amount of limiting factors based upon the application, typically if the design calls for a small autonomy (amount of time the battery will support its load for), the batteries may be released to a level, in the case of emergency lighting where there is a necessity for a autonomy the battery won't be permitted to discharge so much. These conditions help allow the optimum design life of the battery to be performed.
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| - | Inverter : this area of the Uninterruptible power supply provides an ac output to the weight that is in phase with the insight mains supply. Due to the number of conversions (ac to dc to ac) and the filtering involved it can be known as a 'clean supply.'
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| - | Static Switch : this circuit is as easy as a relay or more commonly using thyristors, its function is to move the load between the inverter and the energy mains supply. As has been previously mentioned the production of the inverter is in phase with the electricity mains offer in order that any switching between your two will be virtually seamless. This arrangement means that if the inverter experiences an overload situation, because of its extremely fast over-current detection tracks it'll shift the load to the more sturdy mains supply. A normal example would be each time a machine sheet is switched on, the inrush current, depending upon the size of your uninterruptible power supplies, may cause the transfer to the power mains offer, and once switched on the load will transfer back to the inverter providing the inverter has sufficient capacity to support the load. Also a fault on the inverter may cause the load to be moved, again virtually seamlessly; it'd be unusual for almost any loss in load to happen over these conditions.
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| - | Preservation Bypass : more an average of found in UPS systems with a volume of 6kVA or greater. This arrangement allows force to be moved under controlled conditions to the power mains and the UPS to be shut down without damage. Generally carried out for routine UPS preservation or UPS restore.
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| - | External Maintenance Bypass : the installation of an maintenance bypass can allow the UPS to be removed/replaced without interruption to the load, also, if the true maintenance bypass is given from a separate supply it can allow load testing in the case of an important UPS fix and/or checking of the independence under simulated load conditions while the site load is being supported by the external maintenance bypass circuit. This is often used when allowing the UPS System to be bypassed onto standby diesel generator power. Instead, when batteries are removed and replaced, it may only be done by putting the uniterruptible power into outer bypass.
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