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类型TIS 1291-2545 (2002) Uninterruptible power systems(英文).pdf

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    TIS 1291-2545 2002 Uninterruptible power systems英文 1291 2545 2002 systems 英文
    资源描述:
    Unofficial Translation
    In the event of any doubt or misunderstanding arising from this translation, the standard in Thai will be held to be authoritative
    Notification of the Ministry of Industry
    (No.3049)B.E.2545(2002)
    issued under the Industrial Product Standards Act B.E. 2511(196
    Subject: Amending to Thai Industrial Standard for
    Uninterruptible Power Systems(Amendment No. 1
    Standara rorc, Whereas it is deemed expedient appropriate to revise the Thai Industrial
    By virtue of Section 15 of the Industrial Product Standards Act BE2511
    (1968), the Minister of Industry hereby issues a notification amending the Thai Industrial
    Standard for Uninterruptible Power Systems(TIS 1291-2538)which is attached to the
    Notification of Ministry of Industry No 2062, dated 8 September, BE2538(199 )as follows
    1. The number of the standard is amended fromts1291-2538 to S
    1291-2545.
    2. The statement in clause 1.2 is withdrawn and replaced with the following
    statement.
    1.2 This standard covers single phase uninterruptible power systems of
    output power not exceeding 20 KVA per single UPS unit and three
    phase uninterruptible power systems of output power not exceeding
    75 KVA per single UPS unit
    Such ministerial notification shall come into force upon their publication in the Government
    Gazette
    Given on 30 April B E2545(2002)
    Minister of Industry
    Published in the Government Gazette Vol. 119, Special Part 98 ngor, dated 10 October, BE2545(2002
    G/TBT/Notif. 00.508
    TIS1291-2538
    THAI INDUSTRIAL STANDARD
    FOR
    UNINTERRUPTIBLE POWER SYSTEMS
    1. Scope
    1.1 This standard defines configurations. service conditions. rated values and
    performances, characteristic requirements, marking and labelling, sampling and
    criteria for conformity and testing for the uninterruptible power systems
    1.2 This standard covers single phase uninterruptible power systems of output
    power not exceeding 75 KVA per single UPS unit and three phase
    uninterruptible power systems of output power not exceeding 1000 KVA per
    single UPS unit
    1. 3 This standard covers only the uninterruptible power systems which are
    designed for electronically converting a.c. supply and capable of storing
    converted d. cpower for use in supplying load, either single or three phase, with
    regulated output voltage and frequency
    2. Definitions
    The meaning of terms used In this standard are as follows
    2.1 Short-circuit Output Current means the current Which flows from the UPS into
    zero impedance load
    2.2 Inrush or Inrush current means a current higher than its steady state value
    drawn by a device when energized or activated
    2.3 Walk-in means a controlled power increase by the UPS from the ac input into
    the UPS
    2.4 Burn-in means the operation of units or systems prior to their ultimate
    application intended to stabilize their characteristics and to identify early
    failures
    2.5 Load Sharing means the simultaneous supplying of power to a load from two o
    more sources
    2.6 Variation means the change in the value of a quantity from its mean or typica
    value
    2.7 Frequency Modulation means the cyclic or random dynamic variation, or both
    of instantaneous frequency about a mean frequency during steady-state electric
    system operation
    2.8 Periodic Output
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