DANSK DS/EN 62040-3 PDF

This standard applies to movable, stationary and/or fixed electronic uninterruptible power systems (UPS) that deliver single or three-phase fixed frequency a.c. output voltage not exceeding 1000V a.c. and that present, generally through a d.c. link, an energy storage system. This standard is intended to specify performance and test requirementys of a complete UPS and not of individual UPS functional units. The individual UPS functional units are dealt with in IEC publications referred to in the bibliography given in annex O that apply so far that they are not in contradiction with this standard. The primary function of the UPS covered by this standard is to ensure continuity of an alternating power source. The UPS may also serve to improve the quality of the power source by keeping it within specified characteristics.UPS have been developed over a wide range of power, from less than hundred watts to several megawatts, to meet consumer requirements for continuity and quality of power to a variety of loads.. Refer to annexes A and B for information on typical UPS configurations and topologies.. This standard also covers test and performance for power switches that form integral part of a UPS and that are associated with its output. Included are interrupters, bypass switches, isolating switches, and tie switches. These switches interact with other functional units of the UPS to maintain continuity of load power. This standard does not cover - conventional a,c, input and output distribution boards or d.c. boards and their associated switches (e.g. switches for batteries, rectifier output or inverter input) - stand-alone static transfer systems covered by IEC 62310-3 - systems wherein the output voltage is derived from a rotating machine NOTE 1 – This standard recognises that the major market for UPS application is in conjunction with information technology equipment that employs power supplies presenting a non-linear load to the UPS. UPS output ratings are specified to be compatible with non-linear and with linear loading but subject any limitation stated in the manufacturer’s declaration. References within this standard to linear loading are retained for test method reasons or validation of manufacturers additional declaration. NOTE 2 – Non-linear loads may be tolerant to non-sinusoidal voltage waveforms for a limited time duration. The use of UPS presenting a non-sinusoidal output voltage waveform, beyond the stored-energy time recommended in this standard, should be the subject of an agreement from of the load equipment manufacturer. NOTE 3 – For UPS output frequencies other than 50 Hz or 60 Hz, performance specification is subject to agreement between manufacturer and purchaser. NOTE 4 – Variations of single phase or three-phase voltage UPS covered by this standard include, but are not limited to UPS supplying single-phase, two-wire; single-phase, three-wire; two-phase, three-wire, three-phase, three-wire and three-phase, four-wire loads.