Date Code 20010731
Introduction and Specifications
1-7
SEL-352-1, -2 Instruction Manual
Digital Filtering:
Half-cosine filter for the 50FT overcurrent element.
Cosine filter for all other elements.
Processing Intervals:
1/8-cycle:
Event Report Triggers
Targets
Optoisolated
Inputs
Local
Bits
Remote
Bits
SEL
OGIC
Control Equation SET A Elements
Fault Current Protection Elements
86BF Trip and Reset Elements
Contact Output Elements
SEL
OGIC
Control Equation Analog Compares
1/4-cycle:
All other elements
G
ENERAL
S
PECIFICATIONS
Tightening Torque:
Terminal Block:
Minimum:
7-in-lb (0.8 Nm)
Maximum:
12-in-lb (1.4 Nm)
Connectorized:
Minimum:
4.4-in-lb (0.5 Nm)
Maximum:
8.8-in-lb (1.0 Nm)
Terminal Connections:
Terminals or stranded copper wire. Ring terminals are recommended. Minimum temperature
rating of 105°C.
AC Current Inputs:
5 A nominal: 15 A continuous, 500 A for 1 s, linear to 100 A symmetrical.
1250 A for 1 cycle.
Burden: 0.27 VA at 5 A, 2.51 VA at 15 A.
1 A nominal: 3 A continuous, 100 A for 1 s, linear to 20 A symmetrical,
250 A for 1 cycle.
Burden: 0.13 VA at 1 A, 1.31 VA at 3 A.
AC Voltage Inputs:
120 V
L-N
, three-phase, four-wire connection.
150 V
L-N
continuous (connect any voltage up to 150 Vac).
365 Vac for 10 s.
Burden: 0.13 VA @ 67 V; 0.45 VA @ 120 V.
Power Supply:
Rated:
125/250 Vdc or Vac
Range:
85–350 Vdc or 85–264 Vac
Burden:
<25
W
Interruption: 30 ms at 125 Vdc
Ripple:
100%
Rated: 24/48
Vdc
Range:
20–60 Vdc polarity dependent
Burden:
<25
W
Interruption: 30 ms at 48 Vdc
Ripple:
5%
Note:
Interruption and Ripple per IEC 60255-11 [IEC 255-11]: 1979.
Содержание SEL-352-1
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