Sel 2414 - Page 26

1.10
SEL-2414 Transformer Monitor Date Code 20130214
Introduction and Specifications
Specifications
AC Metering Accuracies
Current
Phase Current: ± 0.5% typical, 25°C, 60 Hz, nominal
current
Neutral Current: ±0.5% typical, 25°C, 60 Hz, nominal
current
Negative Sequence (3I2): ± 0.5% typical, 25°C, 60 Hz, nominal
current (calculated)
Residual Ground Current: ±0.5% typical, 25°C, 60 Hz, nominal
current (calculated)
Voltage
Line-Neutral Voltage: ±0.08% typical, 25°C, 60 Hz, nominal
voltage
Line-Line Voltage: ±0.08% typical, 25°C, 60 Hz, nominal
voltage
Negative-Sequence
(3V2): ±0.5% typical, 25°C, 60 Hz, nominal
voltage (calculated)
Power
Three-Phase Real Power
(kW): ±1% typical, 25°C, 60 Hz, nominal
voltage and current with 0.10 to 1.00
power factor
Three-Phase Reactive
Power (kVAR): ±1% typical, 25°C, 60 Hz, nominal
voltage and current with 0.00 to 0.90
power factor
Three-Phase Apparent
Power (kVA): ±1% typical, 25°C, 60 Hz, nominal
voltage and current
Power Factor
Three-Phase
(wye connected): ±1% typical, 25°C, 60 Hz, nominal
voltage and current (between 0.97
and 1)
Sampling and Processing Specifications
Without Voltage Card or Current Card
Analog Inputs
Sampling Rate: Every 4 ms
Digital Inputs
Sampling Rate: 2 kHz
Contact Outputs
Refresh Rate: 2 kHz
Logic Update: Every 4 ms
Analog Outputs
Refresh Rate: Every 4 ms
New Value: Every 100 ms
Timer Accuracy: ± 0.5% of settings and ±4 ms
With Either Voltage Card, Current Card, or
Both Voltage and Current Cards
Analog Inputs
Sampling Rate: 4 times/cycle
Digital Inputs
Sampling Rate: 32 times/cycle
Contact Outputs
Refresh Rate: 32 times/cycle
Logic Update: 4 times/cycle
Analog Outputs
Refresh Rate: 4 times/cycle
New Value: Every 100 ms
Timer Accuracy: ±0.5% of settings and ±1/4 cycle
Processing Specifications
AC Voltage and
Current Inputs: 16 samples per power system cycle
Frequency Tracking
Range: 44–66 Hz
Digital Filtering: Cycle cosine after low-pass analog
filtering. Net filtering (analog plus
digital) rejects dc and all harmonics
greater than the fundamental.
Control Processing: 4 times per power system cycle or 4 ms if
no current or voltage card
(except for math variables and analog
signals used in logic, which are
processed every 100 ms)
Type Tests
Environmental Tests
IP Code: IEC 60529:2001
IP34
Vibration: IEC 60255-21-1:1988, Class 1
IEC 60255-21-3:1993, Class 2
IEC 60255-21-2:1988, Class 1
Cold: IEC 60068-2-1:2007
–40°C, 16 hours
Damp Heat, Cyclic: IEC 60068-2-30:2005
25–55°C, 6 cycles,
95% relative humidity
Dry Heat: IEC 60068-2-2:2007
85°C, 16 hours
Dielectric Strength and Impulse Tests
Dielectric Strength: IEC 60255-5:2000
IEEE C37.90-2005
2.5 kVac on analog inputs, contact I/O
3.1 kVdc on power supply and analog
outputs
Impulse: IEC 60255-5:2000
0.5 J, 5.0 kV
RFI and Interference Tests
EMC Immunity
Electrostatic Discharge
Immunity: IEC 60255-22-2:2008
IEC 61000-4-2:2008
Severity Level 4
8 kV contact discharge
15 kV air discharge
Radiated RF Immunity: IEC 60255-22-3: 2007
IEC 61000-4-3:2010
10 V/m
IEEE C37.90.2-2004, 35 V/m
Fast Transient, Burst
Immunity: IEC 60255-22-4:2008
IEC 61000-4-4:2011
4 kV @ 5 kHz
2 kV @ 5 kHz for comm. ports
Surge Immunity: IEC 60255-22-5:2008
IEC 61000-4-5:2005
2 kV line-to-line
4 kV line-to-earth