CHAPTER 1: OVERVIEW
INTRODUCTION
PQM POWER QUALITY METER – INSTRUCTION MANUAL
1–3
FIGURE 1–2: PQM Feature Highlights - 2
1.1.3
Applications
•
Metering of distribution feeders, transformers, generators, capacitor banks, and
motors
•
Medium and low voltage three-phase systems
•
Commercial, industrial, utility
•
Flexible control for demand load shedding, power factor, etc.
•
Power quality analysis
•
System debugging
823755A
L.
CDR
FUSE ACCESS
ANALOG
I
NPUT
Contro
l
power fuse access
i
b
l
e under s
li
d
i
ng
door
.
Accept
4-
20mA ana
l
og
i
nputs for transducer
i
nterface
.
VT
I
NPUTS
:
0
-
600
V
, 3 w
i
re or
4
w
i
re vo
l
tage
i
nputs
.
D
i
rect
(
up to 600
V)
or
V
T
(>
600
V
for
i
so
l
at
i
on
)
connect
i
ons
.
CT
I
NPUTS
:
GROUND
:
3
i
so
l
ated phase CT
i
nputs
1
i
so
l
ated neutra
l
CT
i
nput
1 Amp or 5 Amp secondary
Separate safety and f
il
ter ground
A
ll i
nputs meet C37
.9
0 and
IE
C 801
-
2
E
M
I
, S
W
C, R
FI i
nterference
i
mmun
i
ty
.
AC
/
DC CONTROL PO
W
ER
Un
i
versa
l
contro
l
power
9
0
-
300
V
DC
70
-
265
V
AC
CO
M
PACT DES
I
GN
Pane
l
mount rep
l
aces many d
i
screte
components w
i
th one standard mode
l.
PROGRA
M
UPDAT
I
NG
Fl
ash memory storage of f
i
rmware for f
i
e
l
d
updat
i
ng v
i
a commun
i
cat
i
ons port
. E
nab
l
es
product updat
i
ng on
-
s
i
te for
l
atest features
.
CO
MM
UN
I
CAT
I
ONS
Dua
l
RS
4
85 comm ports Modbus protoco
l.
Cont
i
nuous mon
i
tor
i
ng/contro
l
v
i
a
SCADA system rear
(
RS
4
85
).
F
ront
(
RS232
)
or rear
(
RS
4
85
)
access
a
ll
ows s
i
mu
l
taneous commun
i
cat
i
on
v
i
a a PC or for redundant comms
.
®
CO
M
1
CO
M
2
/
3
ANALOG OUTPUTS
4 i
so
l
ated 0
-
1mA or
4-
20 mA outputs rep
l
ace
8 transducers
.
Programmab
l
e
i
nc
l
ud
i
ng:
A,
V
,
W
, var,
V
A,
W
h varh, P
F
,
H
z
S
WI
TC
H I
NPUTS
A
B
C
D
Programmab
l
e for re
l
ay act
i
vat
i
on,
counters,
l
og
i
c, demand synchron
i
zat
i
on,
setpo
i
nt access, a
l
arm pos
i
t
i
on
4
OUTPUT RELAYS
ALAR
M
AUX1
AUX2
AUX3
Programmab
l
e a
l
arm cond
i
t
i
ons
actuated by programmab
l
e
setpo
i
nts, sw
i
tch
i
nputs, remote
commun
i
cat
i
on contro
l.
}
}
Содержание Multilin PQM
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