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CHAPTER 2: PRODUCT DESCRIPTION
SPECIFICATIONS
T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
2-27
2
Breaking capacity:
CONTROL POWER EXTERNAL OUTPUT (For dry contact input)
Capacity:
100 mA DC at 48 V DC
Isolation:
±300 Vpk
DIRECT OUTPUTS
Output points:
32
DCMA OUTPUTS
Range:
–1 to 1 mA, 0 to 1 mA, 4 to 20 mA
Max. load resistance:
12 k
Ω
for –1 to 1 mA range
12 k
Ω
for 0 to 1 mA range
600
Ω
for 4 to 20 mA range
Accuracy:
±0.75% of full-scale for 0 to 1 mA range
±0.5% of full-scale for –1 to 1 mA range
±0.75% of full-scale for 0 to 20 mA range
99% Settling time to a step change:
100 ms
Isolation:
1.5 kV
Driving signal:
any FlexAnalog quantity
Upper and lower limit for the driving signal: –90 to 90 pu in steps of 0.001
2.5.8 Communication protocols
IEC 61850
IEC 61850:
Supports IEC 61850 Edition 2.0. See the UR Family Communications Guide and its conformance
statements.
RS232 (Enhanced and standard front panels)
Front port:
19.2 kbps, Modbus RTU
USB (Graphical front panel)
Front port:
USB 2.0 type B
RS485
1 rear port:
up to 115 kbps, Modbus RTU, DNP 3, IEC 60870-5-103
Typical distance:
1200 m
Isolation:
2 kV, isolated together at 36 Vpk
Specification
UL 508
Utility application
(autoreclose scheme)
Industrial application
Operations per
interval
5000 operations,
1 second on,
9 seconds off
5 operations
0.2 seconds on
0.2 seconds off
within 1 minute
10000 operations
0.2 seconds on
30 seconds off
1000 operations
0.5 seconds on,
0.5 seconds off
Break capability
(0 to 250 V DC)
3.2 A at L/R = 10 ms
10 A at L/R = 40 ms
10 A at L/R = 40 ms
1.6 A at L/R = 20 ms
0.8 A
L/R = 40 ms
Summary of Contents for T35
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