MGE UPS Systems EPS 6000, Installation Manual

Page: 33 / 72

Figure
E P S 6 0 0 0 M a j o r I n t e r n a l C o m p o n e n t s ,
1-23
1 5 0 0 k VA S t a t i c S w i t c h C a b i n e t ( S S C )
Following is a description of the EPS 6000 UPS major
internal components. Refer to the single-line diagrams
provided in Figures 1-2, 1-4, 1-6 and 1-8, and the
component locators provided in Figures 1-9 to 1-23.
UPS modules utilized in shared configurations are slightly
different than single-module configurations (as noted), since the functions of the single-module
configuration are split between the shared UPS modules and the SSC.
The rectifier/battery charger converts the AC input voltage
from the utility source into a DC voltage, supplying the
inverter and regulating the charge of the battery system. A
capacitor bank filters the DC voltage.
The inverter chops the DC voltage supplied from either the
rectifier/battery charger or the battery system into a three-
phase AC voltage. An AC output filter is used to achieve a computer-grade sinewave output
voltage waveform, with a total harmonic distortion of less than 2% under linear-load conditions.
1.2.2 Inverter
1.2.1 Rectifier/Battery
Charger
1.2 Description of UPS
Module Major Internal
Components
UPS
BYPASS
UPS
BYPASS
FUSES
(F1, F2, F3, & F4)
ROTARY SWITCHES
(SW1, & SW2)
PCA (EPOZ)
PCA (ACOZ)
PCA (RAUZ)
PCA (ACPZ)
PCA (OBEZ)
CAPACITORS
(C11, C12, & C13)
FAR SIDE OF PANEL
PCA (IBEZ)
CARD CAGE
TRANSFORMER (T12)
CIRCUIT BREAKER
(Q2S)
FUSES (F11, F12, & F13)
FAR SIDE OF PANEL
STATIC SWITCH
STATIC SWITCH PCA
(SSSZ)
PCA (GTCZ)
PCA (SRIZ)
PCA (AROZ) PCA (ALEZ)
CIRCUIT BREAKER
(Q3BP)
CIRCUIT BREAKER
(Q5N)
STATIC SWITCH CABINET
(WITH FRONT DOORS REMOVED)
MAINTENANCE BYPASS CABINET
(WITH FRONT DOOR REMOVED)
PCA (PROZ)
PCA (CBOZ)
TRANSFORMER (T13)
FAR SIDE OF PANEL
1 — 23 Introduction
Installation manual