Schweitzer Engineering Laboratories SEL-352-1 - General Specifications

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
GENERAL SPECIFICATIONS
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.