American Power Conversion Symmetra MW - Manual (Page 11)

Symmetra MW 1000 kW 480 V Installation - 990-4112E 7
Electrical Installation
Typical UPS Wiring Principle
Power wiring overview
See also
See separate guide on parallel operation for wiring overview in parallel systems.
1.
2.
3.
4.
5.
6.
7.
8.
SOURCE AND AC CABLING MUST BE 480 VOLT, WYE CONNECTED, 3 PHASE,
3 WIRE + GROUND (CONTACT APC IF OTHER).
DASHED LINES BETWEEN UNITS ( — — — ) REPRESENT AC/DC CABLING PROVIDED BY OTHERS.
ALL AC CIRCUIT BREAKERS ARE 100% CONTINUOUS DUTY RATED
WITH 24 VOLT DC SHUNT TRIPS AND 2A/2B AUXILIARY CONTACTS.
OPTIONAL COMPONENTS
SEPARATE CONDUITS. TWO WIRE + GROUND
UPS INPUT AND OUTPUT CONDUCTORS MUST BE IN SEPARATE AMPERE RATINGS.
UPS AND STATIC BYPASS WITHSTAND 200,000 SYMMETRICAL AMPERES.
INSTALLATION MUST COMPLY WITH ALL APPLICABLE NATIONAL AND LOCAL CODES.
Battery
Breakers
UPS SSW
AC Mains
Input Lugs
Battery 1
480 V, 3PH, 3W & GND
480 V, 3PH, 3W & GND
Battery 2
External
Battery
Output Load Lugs
Q7 Q8
Q2 Q3
Q4
Q6
Q1 Q5
2
2
2 2 2
4 4
4
4
2 2
5
7
7
KK
LBB
KK
KK