Emerson Liebert Static Transfer Switch Especificações Página 1

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SL-20610 (R 11/02) 1
CSI 16262 - Static Transfer Switches
Liebert Static Transfer Switch 2
Automatic Static Transfer Switch
GUIDE SPECIFICATIONS
for 100A 1000A
1.0 GENERAL
1.1 SUMMARY
These specifications describe the requirements for an automatic static transfer switch (STS). The STS is a
solid-state, three-pole, dual-position transfer switch designed to automatically and manually switch
between two synchronized three-phase AC power sources without an interruption of power to the load
longer than 1/4 cycle. The input power shall be supplied from two different AC power sources, which are
nominally of the same voltage level, phase rotation, and frequency. The primary purpose of the STS is to
allow virtually uninterrupted transfer from one source to the other in case of failure of one source or by
manual initiation for test or maintenance. The switching action shall not connect together the two sources
of power that would allow back feeding one source to the other. The STS shall allow for either source to
be designated as the “preferred source” to which the switch will automatically transfer to and remain
transferred to until manually initiated to transfer or until the selected source fails, at which time, the STS
shall transfer without interruption greater than 1/4 cycle to the other source, or “alternate source”. The
STS shall be furnished with key-interlocked static switch isolation and bypass breakers to each source
which allow uninterrupted manual transfer to and from either source for maintenance.
1.2 STANDARDS
The specified system shall be designed, manufactured, tested, and installed in accordance with:
American National Standards Institute (ANSI)
Canadian Standards Association (CSA)
Institute of Electrical and Electronics Engineers (IEEE)
ISO 9001
National Electrical Code (NEC)
National Electrical Manufacturers Association (NEMA)
National Fire Protection Association (NFPA)
Underwriters Laboratories (UL) (ULc)
EN 50091-2
EN 61000-6-3 & 6-2
EN 60947-6-1
IEC 62310
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Página 1 - SL-20610 (R 11/02) 1

SL-20610 (R 11/02) 1 CSI 16262 - Static Transfer Switches Liebert Static Transfer Switch 2 Automatic Static Transfer Switch GUIDE SPECIFICATIONS f

Página 2 - 2 Guide Specification

Liebert Static Transfer Switch 10 Guide Specification An audible alarm shall be activated when any of the alarms occurs. All alarms shall be disp

Página 3 - SL-20610 (R 11/02) 3

100 – 1000 Amps SL-20610 (R 11/02) 11 software to communicate (via SNMP and HTTP) to any I.P.-based Ethernet network through a RJ-45 connector. Th

Página 4 - 4 Guide Specification

Liebert Static Transfer Switch 12 Guide Specification 2.3.12 Export Crating Heavy-duty solid wood crating with vapor barriers and desiccant shall

Página 5 - SL-20610 (R 11/02) 5

100 – 1000 Amps SL-20610 (R 11/02) 13 throughout the country. Recommended spare parts shall be fully stocked by local field service personnel wit

Página 6 - 6 Guide Specification

Liebert Static Transfer Switch 2 Guide Specification The STS shall be UL and UL listed per UL Standard 1008 for Automatic Transfer Switches. The

Página 7 - SL-20610 (R 11/02) 7

100 – 1000 Amps SL-20610 (R 11/02) 3 settings. All setting must be adjustable; the settings shall be adjusted/configured from the LCD display. A.

Página 8 - 8 Guide Specification

Liebert Static Transfer Switch 4 Guide Specification components without access to hazardous voltages when the unit is in maintenance bypass. 1.4.

Página 9 - SL-20610 (R 11/02) 9

100 – 1000 Amps SL-20610 (R 11/02) 5 hours. To the fullest extent practical, redundant circuits and components shall be used to eliminate single p

Página 10 - 10 Guide Specification

Liebert Static Transfer Switch 6 Guide Specification • Description of equipment to be furnished, including deviations from these specifications.

Página 11 - SL-20610 (R 11/02) 11

100 – 1000 Amps SL-20610 (R 11/02) 7 Provision shall be made for power and control cables to enter or leave from the top or bottom of the STS cabi

Página 12 - 12 Guide Specification

Liebert Static Transfer Switch 8 Guide Specification The STS shall be equipped with 5 molded-case, plug-in, non-automatic circuit breakers. The br

Página 13 - SL-20610 (R 11/02) 13

100 – 1000 Amps SL-20610 (R 11/02) 9 2.2.2.1 Metering The following metering parameters shall be displayed: • Input AC voltage both sources, li

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