
1.9
Date Code 20090730
Instruction Manual
SEL-734 Meter
Introduction and Specifications
Specifications
Processing Specifications
AC Voltage and Current Inputs
16 samples per power system cycle for instantaneous quantities.
8000 samples per second for rms quantities and harmonics.
3 dB low-pass filter cut-off frequency of 3000 Hz.
Control Processing
25 ms processing interval
SEL
OGIC
Pickup and Accuracies
SEL
OGIC
Timers:
± 25 ms
Analog Values:
± 3%
Timers
Pickup Ranges:
0.000–250.000 s, 25 ms steps
Pickup and Dropout
Accuracy (for all timers):
± 1 processing interval (25 ms)
Metering/Monitoring
Metering Accuracy, One-Second Average (rms)
ANSI C 12.20 (1998) Accuracies are specified
at 23°C and at nominal system frequency, nominal
voltage, and nominal current unless noted otherwise.
Voltages V
A
, V
B
, V
C
:
± 0.15%
Voltages V
AB
,
V
BC
, V
CA
:
± 0.15%
Currents I
A
, I
B
, I
C
:
± 0.15%
Current, Neutral I
N
:
± 1.0%
Frequency:
± 0.01 Hz
Energy (kWh),
Imported/Exported
Total:
class 0.2
Peak Power
Demand (kW):
class 0.2
Power (kW) Total:
class 0.2
Power (kW), per Phase:
class 0.2
Reactive Energy
(kVARh) Import/
Export per Phase
and Total:
class 0.2
Apparent Energy (kVAh): class 0.2
Reactive Power (kVAR)
per Phase and Total:
class 0.2
Apparent Power (kVA)
per Phase and Total:
class 0.2
Reactive Power (kVAR)
Peak Demand:
class 0.2
Apparent Power (kVA)
Peak Demand:
class 0.2
Metering Accuracy, Instantaneous (25 ms)
Accuracies are specified at 23°C and at nominal system
frequency unless noted otherwise.
Voltages V
A
, V
B
, V
C
:
± 1%
Voltages V
AB
, V
BC
, V
CA
: ± 1%
Currents I
A
, I
B
, I
C
:
± 1%
Current, Neutral I
N
:
± 2%
Frequency:
± 0.01 Hz
Power (kW) per
Phase and Total:
± 2%
Reactive Power (kVAR)
per Phase and Total:
± 2%
Apparent Power (kVA)
per Phase and Total:
± 2%
Power Factor, at Unity PF:
± 2%
Harmonic Accuracy per IEC 61000-4-7 (2002-08)
Quantity
Condition
Max Error for n
≤
25
Voltage
UH
n
≥
1% U
N
5% UH
n
UH
n
< 1% U
N
0.05% U
N
Current
IH
n
≥
3% I
N
5% IH
n
IH
n
<
3% I
N
0.15% I
N
Power
PH
n
>
150 W sec
PH
n
• 5%
PH
n
<
150 W sec
PH
n
±
7.5 W
Note:
U
N
and I
N
are nominal voltage and current. UH
n
, IH
n
, and
PH
n
are
n
th order harmonic voltage, current, and power.
U
N
= 120 V or 240 V (metering voltage option)
I
N
= 0.5 A (CL2) or 5.0 A (CL10 and CL20)
THD:
± 5% typical, ±10% worst case
K-Factor:
± 5% typical, ±10% worst case
Distortion Power:
± 3% typical, ±10% worst case
Flicker
P
ST
:
± 5% over the range 0.5–25 P
ST
(10-min. interval)
P
LT
:
± 5% over the range 0.5–25 P
LT
(2-hour interval)
Integration/Automation
Communications Ports
A total of five ports is available.
bps:
300 to 38400
Standard Ports
Optical
(ANSI C12.18 Type 2):
Front Panel
EIA-232:
Rear Panel
Optional Ports
EIA-232/
EIA-485/Modem:
Rear Panel, 1.5 kVdc isolation
for EIA-485/Modem
10BASE-T
Ethernet Port:
Rear Panel
Note
: The EIA-232/EIA-485/Modem card functions as a single
port, therefore, only one port is available at a time. The
optional internal modem complies with Part 68 of the FCC
Rules and Regulations.
Type Tests
Electromagnetic Compatibility Immunity
Surge Withstand
Capability:
IEEE C37.90.1-1989 Elec.
relays, 3 kV oscillatory,
5 kV fast transient
IEC 60255-22-1:1988,
2.5 kV peak common and
2.5 kV peak differential mode
1.0 kV peak common mode on
communication ports
Содержание SEL-734
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