GE Industrial Solutions ISM - Manual (Page 9)

Modifications reserved Page 9/34
OPM_ISM_OPT_10K_M50_0GB_V021.doc Operating Manual ISM – Intelligent Synchronization Module
Features & benefits:
•
Redundant Power Supply providing highest reliability.
• Redundant Communication Bus tolerating an accidental cable cut.
• CRC Code (Cyclic Redundancy Check) for error free communication.
• High Precision Synchronization offering seem less transfer from one source to the other.
• Top and Bottom Cable access for easy installation.
• Compatible with GE SitePro (only series 6) and SG Series UPS and with GE’s unique RPA concept.
• Global Power Supply Voltage for worldwide usage (208, 400 or 480 VAC – 50 / 60 Hz).
• Synchronizes 2 groups of max. 6 UPS units (ranging from 10 - 500 kVA) each offering great
flexibility.
• User Friendly Control Panel providing complete information on the spot.
2.1.1 STS - Static Transfer Switch
Fig. 2.1.1-1 STS - Static Transfer Switch block diagram
The STS is designed for the switching of two alternative
power sources without interruption of the supply to
energy receivers.
The STS is connected to two sources of electrical power
with terminal X01 for the Group A source and X02 for
the Group B source.
Depending on current settings and system status, one
of the two sources (Group A or Group B) is connected to
the output terminal X03 (STS Output).
K1, K2, K3, K4 and K5 are manually operated circuit
breakers.
K1 and K2 are normally open, while K3, K4 and K5 are
normally closed.
X01, X02 and X03 are terminals.
NOTE !
For installation procedures and functional descriptions of the STS, please
consult the appropriate Operating Manual.