Power Measurement 3300 ACM User Manual

3300 ACM Installation and Operation Manual Power Measurement Ltd.
2-6 Installation
MODEL: 3300 ACM
SERIAL NUMBER:
OPTIONS:
ELECTRICAL RATINGS
POWER
MEASUREMENT
LTD.
6703 RAJPUR PLACE
VICTORIA, B.C.
CANADA V8X 3X1
MADE IN
CANADA
+
-
I32
I31
I22
I21
I12
I11
V3
V2
V1
L
N
G
NOTES: 1. VOLTS MODE = 4 WIRE WYE 2. Note the polarity of each CT and PT.
Figure 2.5.4b 4 Wire WYE: 3 Element Connection Using 3 PTs
ABC N
CT SHORTING SWITCH
OR TEST BLOCK
LINE
CTs
EXPORT/REVERSE/NEGATIVE
IMPORT/FORWARD/POSITIVE
2A
2A
2A
Base Module
LOAD
SWITCHGEAR CHASSIS
GROUND
SWITCHGEAR CHASSIS
GROUND
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.
For Wye system voltages over 347/600 Volts, PTs must be
used. When PTs are used, both the PT primary and second-
ary must be wired in a Wye (Star). Voltage sense leads
should be protected by breakers or fuses at their source. If
the power rating of the PTs is over 25 Watts the secondaries
should be fused.
This configuration is shown in Figure 2.5.4b below. Wiring
must be exactly as shown for correct operation. VOLTS
MODE should be set to 4 WIRE WYE.
Courtesy of NationalSwitchgear.com

Power Measurement 3300 ACM Specifications

General

Brand	Power Measurement
Model	3300 ACM
Category	Measuring Instruments
Language	English