Power Measurement 3300 ACM User Manual

3300 ACM Installation and Operation Manual Power Measurement Ltd.
Installation 2-9
MODEL: 3300 ACM
SERIAL NUMBER:
OPTIONS:
ELECTRICAL RATINGS
POWER
MEASUREMENT
LTD.
6703 RAJPU
R
VICTORIA, B.
C
CANADA V8
X
MADE IN
CANADA
+
-
I32
I31
I22
I21
I12
I11
V3
V2
V1
L
N
G
2A
2A
OPTIONAL PT POLARITY CONNECTION
V
AB
CT SHORTING SWITCH
OR TEST BLOCK
SWITCHGEAR CHASSIS
GROUND
2A
2A
V
CB
LOAD
EXPORT/REVERSE/NEGATIVE
IMPORT/FORWARD/POSITIVE
ABC
SWITCHGEAR CHASSIS
GROUND
LINE
Base Module
Figure 2.5.5a 3 Wire DELTA: 2½ Element Using 2 PTs and 3 CTs
CTs
SWITCHGEAR
CHASSIS GROUND
SUPPLY POWER
(dependent on equipped
power supply option - see
Section 2.3)
{
250 mA SLO BLO
FUSES PT's FUSES
! IMPORTANT !
It is important that all 3300 ACM
installations include communica-
tions wiring. Refer to Section 2.6
for more information.
2.5.5 CONNECTION FOR THREE PHASE
DELTA SYSTEMS
For ungrounded (floating) 3 wire Delta systems, the 3300
ACM always requires PTs and senses the line-to-line
voltages between each of the phases.
The 3300 ACM may be connected in either of two ways:
using 2 or 3 CTs. Figure 2.5.5a below shows ungrounded
Delta connection using 3 CTs. VOLTS MODE should be set
to 3 WIRE DELTA.
NOTES: 1. VOLTS MODE = 3 WIRE DELTA 2. Note the polarity of each CT and PT.
Courtesy of NationalSwitchgear.com

Power Measurement 3300 ACM Specifications

General

Brand	Power Measurement
Model	3300 ACM
Category	Measuring Instruments
Language	English