73 / 100
PowerSafe – Commercial & Industrial
73
After setting the lastdigit,press&
hold the
button to confirm your
change.
o exit the set-upmenu,press& hold
until the
easurement screen is restored.
. Specifications
.1 Measured Parameters
heHavellsPS7 canmonitor anddisplay the following
arametersof a singlephase supply:
.1.1 Voltage and Current
phase toN
5.1.2 Power factor and Frequency and
Max. Demand
Power factor
.1.3 Energy Measurements
0 to 99999.9 kWh
0 to 99999.9 kWh
0 to 99999.9 kVArh
0 to 99999.9 kVArh
0 to 99999.9 kWh
0 to 99999.9 kVArh
.2 Accuracy
0·5%of rangemaximum
0·5%ofnominal
0·2%ofmid-frequency
1%of unity (0.01)
±1%of rangemaximum
±2%of rangemaximum
±1%of rangemaximum
Class1 IEC 62053-21
±2%of rangemaximum
1%up to 31st harmonic
Voltage and current=
0.013%/°C typical
=0·018%/°C, typical
1s, typical, to>99%of
final reading, at 50Hz.
.3 Interfaces for External Monitoring
hree interfaces areprovided:
forModbusRTUprotocol
(configurable)
heModbus configuration (Baud rate etc.) and thepulse
elayoutput assignments (kW/kVArh, import/export etc.) are
onfigured through theSet-up screens.
.5.1 Pulse Relay Output
hepulse relayoutput canbe set togeneratepulses to
epresent kWhor kVArh.
ate canbe set togenerate 1pulseper:
= 1 kWh/kVArh
5.7 Environment
-25°C to+55°C*
-40°C to+70°C*
0 to90%,
non-condensing
Up to2000m
1minute
10Hz to 50Hz, IEC
60068-2-6,2g
30g in 3planes
*Maximumoperating and storage temperatures are in the
contextof typicaldaily and seasonal variation.
6. Dimensions
7. Wiring Diagram
Type ‘A’ and ‘B’ Digital Metering Devices
PS7 / PS8 -
(PSAM100MID, PSMD1100MID, PSMD3100MID)
Parameters
PS7 - Single Phase Direct Connect 100A
PS8 - Three Phase Direct Connect 100A
Voltage and Current
s Phase to neutral voltage 176 to 276V a.c.
s 0ERCENTAGE TOTAL VOLTAGE HARMONIC DISTORTION 4($ FOR
phase to N
s Phase current
s #URRENT 4($
Power factor and Frequency and
Max. Demand
s Frequency in Hz
s Instantaneous Power Power 0 to999MW
s Reactive Power 0 to 999MVAr
s Volt-amps 0 to 999 MVA
s Maximum demanded power since last Demand reset
Power factor
Energy Measurements
s Imported active energy 0 to 99999.9 kWh
s Exported active energy 0 to 99999.9 kWh
s Imported reactive energy 0 to 99999.9 kVArh
s Exported reactive energy 0 to 99999.9 kVArh
s Total active energy
0 to 99999.9 kWh
s Total reactive energy
0 to 99999.9 kVArh
MID Approved
s Annex B & D
Accuracy
s 6OLTAGE
s OF RANGE MAXIMUM
s #URRENT
s OF NOMINAL
s &REQUENCY
s OF MID FREQUENCY
s 0OWER FACTOR
OF UNITY
s !CTIVE POWER 7 ¢ OF RANGE MAXIMUM
s 2EACTIVE POWER 6!R
¢ OF RANGE MAXIMUM
s !PPARENT POWER 6! ¢ OF RANGE MAXIMUM
s Active energy (Wh)
Class 1 IEC 62053-21
s 2EACTIVE ENERGY 6!2H ¢ OF RANGE MAXIMUM
s 4OTAL HARMONIC DISTORTION UP TO ST HARMONIC
s Temperature co-efficient Voltage and current =
ª# TYPICAL
s !CTIVE ENERGY
s
ª# TYPICAL
s 2ESPONSE TIME TO STEP INPUT
S TYPICAL TO
OF
final reading, at 50 Hz.
Environment
s /PERATING TEMPERATURE
ª# TO ª#
s 3TORAGE TEMPERATURE
ª# TO ª#
s 2ELATIVE HUMIDITY
TO
non-condensing
s !LTITUDE
5P TO M
s 7ARM UP TIME
MINUTE
s 6IBRATION
(Z TO (Z )%#
60068-2-6, 2g
s 3HOCK
G IN PLANES
*Maximum operating and storage temperatures are in the
context of typical daily and seasonal variation.
Wiring Diagram (PS7)
Wiring Diagram (PS8)