Index.php

From Glitches

Charger : in numerous UPS systems because of the character of their design another battery charger is applied, this is more common on sub 60kVA UPS systems and is quite common on small sub 3kVA units.

Battery : this is actually the energy storage section and is kept charged eith...

Rectifier : this section of the UPS converts the incoming alternating current (ac) supply to direct current (dc) and provides charging current for the battery and also the supply requirements for the inverter.

Charger : in numerous UPS systems as a result of nature of their design a different battery charger is applied, this is extremely common on small sub 3kVA products and is more common on sub 60kVA UPS systems.

Battery : here is the energy storage area and is kept charged either by the rectifier or a separate charger. As AH (ampere hour), which is the number of amperes of current that the battery can supply for an hour, Its storage capacity is usually shown. There will be a quantity of limiting factors based upon the application, generally if the design calls for a small autonomy (period of time the battery will support its load for), the batteries could be cleared to a degree, in the case of emergency lighting where there's a need for a autonomy the battery won't be permitted to release so far. These conditions help permit the optimum design life of the battery to be achieved.

Inverter : an ac output is provided by this section of the Uninterruptible power supply to the load which can be in phase with the insight mains supply. Because of the quantity of conversions (ac to dc to ac) and the filter involved it may be termed as a 'clean supply.'

Fixed Switch : this signal is often as easy as an exchange or even more commonly using thyristors, its purpose is to change the load between the application mains supply and the inverter. So that any switching involving the two will undoubtedly be almost seamless as has been mentioned before the result of the inverter is in phase with the utility mains offer. This arrangement means that if the inverter activities an overload situation, due to its very quickly over-current detection circuits it will transfer force to the more resilient mains supply. An average example would be when a server rack is switched on, the inrush current, depending upon the size of your uninterruptible power supplies, may cause the transfer to the utility mains offer, and after switched on the load will transfer back to the inverter offering the inverter has sufficient ability to support the load. Also a fault on the inverter may cause the load to be moved, again practically seamlessly; it'd be unusual for almost any loss of load that occurs over these conditions.

Preservation Bypass : more on average within UPS systems with a capacity of 6kVA or greater. The load is allowed by this arrangement to be transferred under controlled conditions to the UPS and the power mains to be power down without damage. Generally carried out for program UPS maintenance or UPS restore.

External Maintenance Bypass : the installation of an maintenance bypass can allow the UPS to be removed/replaced without disturbance to the load, also, if the actual maintenance bypass is given from a separate supply it can allow load screening in the case of a major UPS repair and/or checking of the independence under simulated load circumstances while the site load has been recognized by the external maintenance bypass circuit. When letting the UPS System to be bypassed onto standby diesel generator power this is often used. Alternately, when batteries are replaced and removed, it may only be achieved by putting the uniterruptible power into additional bypass.