1.8
SEL-2414 Transformer Monitor Date Code 20130214
Introduction and Specifications
Specifications
ADC Resolution: 24 bit
Accuracy:
CU10: ±1°C typical at 25°C
PT100, NI100, NI120: ±0.1°C typical at 25°C
CU10, PT100, NI100,
NI120: ±2°C worst case
Resolution: ±0.1°C
Update Rate: 1 s
CMRR (typical): 100 dBv
Noise Rejection: Up to 1 Vrms 50/60 Hz
Universal Temperature Input Card
Number of Channels: Ten (thermocouples or 3-wire RTDs)
Input Type:
Supports the following
RTD or TC types on
each independent input.
100 Ω platinum (PT100)
100 Ω nickel (NI100)
120 Ω nickel (NI120)
10 Ω copper (CU10)
J, K, T, E
Measuring Range
RTDs: –50° to 250°C
TCs
J: –210° to 250°C
K, T, E: –270° to 250°C
ADC Resolution: 24 bit
Accuracy
RTDs
CU10: ±1°C typical at 25°C
PT100, NI100,
NI120, CU10: ±0.1°C typical at 25°C
CU10, PT100,
NI100, NI120: ±2°C worst case
TCs
J, K, T, E: ±1°C with field calibration
±3°C without field calibration
Resolution: ±0.1°C
Update Rate: <3 s
CMRR (typical): 100 dBv
Noise Rejection: Up to 1 Vrms 50/60 Hz
Isolation
Number of Banks: Two Banks (5 channels each)
Max. Working
Common Mode: 250 Vdc
Cold Junction
Compensation: Automatic
Time-Code Input
Format: Demodulated IRIG-B
On (1) State: V
ih
≥2.2 V
Off (0) State: V
il
≤0.8 V
Input Impedance: 2 kΩ
Accuracy: ± 3 milliseconds
Outputs
General
OUT103 is Form C Trip Output, all other outputs are Form A.
Dielectric Test Voltage: 2000 Vac
Impulse Withstand
Voltage (U
imp
): 4000 V
Mechanical Durability: 10M no load operations
DC Output Ratings
Electromechanical
Rated Operational
Voltage: 250 Vdc
Rated Voltage Range: 19.2–275 Vdc
Rated Insulation Voltage: 300 Vdc
Make: 30 A @ 250 Vdc per IEEE C37.90
Continuous Carry: 6 A @ 70°C; 4 A @ 85°C
Continuous Carry
(UL/CSA Derating with
All Outputs Asserted): 5 A @ <60°C; 2.5 A 60 to 70°C
Thermal: 50 A for 1 s
Contact Protection: 360 Vdc, 40 J MOV protection across
open contacts
Operating Time (coil
energization to contact
closure, resistive load): Pickup or Dropout time ≤8 ms typical
Breaking Capacity
(10,000 operations) per
IEC 60255-0-20:1974:
24 Vdc 0.75 A L/R = 40 ms
48 Vdc 0.50 A L/R = 40 ms
125 Vdc 0.30 A L/R = 40 ms
250 Vdc 0.20 A L/R = 40 ms
Cyclic Capacity
(2.5 cycles/second) per
IEC 60255-0-20:1974:
24 Vdc 0.75 A L/R = 40 ms
48 Vdc 0.50 A L/R = 40 ms
125 Vdc 0.30 A L/R = 40 ms
250 Vdc 0.20 A L/R = 40 ms
Fast Hybrid (high-speed high current interrupting)
Make: 30 A
Carry: 6 A continuous carry at 70°C
4 A continuous carry at 85°C
1 s Rating: 50 A
MOV Protection
(maximum voltage): 250 Vac/330 Vdc
Pickup Time: <50 μs, resistive load
Dropout Time: 8 ms, resistive load
Update Rate: 1/8 cycle
Breaking Capacity (10000 operations):
48 Vdc 10.0 A L/R = 40 ms
125 Vdc 10.0 A L/R = 40 ms
250 Vdc 10.0 A L/R = 20 ms
Cyclic Capacity (4 cycles in 1 second, followed by 2 minutes idle for
thermal dissipation):
48 Vdc 10.0 A L/R = 40 ms
125 Vdc 10.0 A L/R = 40 ms
250 Vdc 10.0 A L/R = 20 ms
Note: Per IEC 60255-23:1994, using the simplified method of
assessment.
Note: Make rating per IEEE C37.90
-1989.
AC Output Ratings
Electromechanical
Maximum Operational
Voltage (U
e)
Rating: 240 Vac
Insulation Voltage (U
i
)
Rating (excluding
EN 61010
-1): 300 Vac
Utilization Category: AC
-15 (control of electromagnetic loads
> 72 VA)
Contact Rating
Designation:
B300 (B = 5 A, 300 = rated insulation
voltage)
Voltage Protection Across
Open Contacts: 270 Vac, 40 J
Rated Operational
Current (I
e
):
3 A @ 120 Vac
1.5 A @ 240 Vac
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