Schweitzer Engineering Laboratories SEL-352-1 - Fixed Timers; Internal Logic Timers

Date Code 20010731 Introduction and Specifications 1-15
SEL-352-1, -2 Instruction Manual
62L2 Loss-of-Dielectric Timer
62UF Phase Discordance Failure Timer
62UP Phase Discordance Pending Failure Timer
62T3 General Purpose Timer 3
62T4 General Purpose Timer 4
62RT Delayed Trip Time
62RC Staggered Close Time
setting range .....................................................................0.00–16383.00 cycles, 1/4-cycle steps
pickup setting ......................................................................... ±0.25 cycles or ±0.25% of setting
62ZCA A-Phase Zero-Crossing Timer
62ZCB B-Phase Zero-Crossing Timer
62ZCC C-Phase Zero-Crossing Timer
62PCA A-Phase Peak-Crossing Timer
62PCB B-Phase Peak-Crossing Timer
62PCC C-Phase Peak-Crossing Timer
setting range ..................................................................................0.00–40.00 ms, 0.01-ms steps
pickup setting .............................................................................................................. ±200
msec
62VN Voltage Nulling Delay Timer
setting range ...................................................................... 0.00–240.00 minutes, 0.01-min steps
pickup setting ........................................................................ ±0.25 cycles or ±0.25% of setting
Fixed Timers
62F1 Flashover Voltage Time Delayed Dropout Timer ..................................5 cycles ±0.25 cycles
62F2 Load Current Pickup Timer (Flashover Logic) ...................................... 5 cycles ±0.25 cycles
62F3 Trip or Close Dropout Timer (Flashover Logic) ....................................6 cycles ±0.25 cycles
62M1 86BF Reset Signal Duration Timer .................................................... 60 cycles ±0.125 cycles
62M4 86BF Reset Time Delay, MOD Logic Enabled................................ 300 cycles ±0.125 cycles
62LT1 Loss-of-Dielectric Input Debounce Timer............................................60 cycles ±0.25 cycles
62LT3 Loss-of-Dielectric Input Debounce Timer............................................60 cycles ±0.25 cycles
MCT Manual Close Input Dropout Timer .......................................................2 cycles ±0.25 cycles
SEN Synchronism Calculation Enable Pickup Timer................................... 15 cycles ±0.25 cycles
SS Slip Security Pickup Timer .................................................................4.5 cycles ±0.25 cycles
Internal Logic Timers
62XZPB B-Phase Positive Zero-Crossing Delay Timer for X Side ...................................... 0.33 cycles
62XZNB B-Phase Negative Zero-Crossing Delay Timer for X Side..................................... 0.33 cycles
62XZPC C-Phase Positive Zero-Crossing Delay Timer for X Side ...................................... 0.66 cycles
62XZNC C-Phase Negative Zero-Crossing Delay Timer for X Side..................................... 0.66 cycles
62YZPB B-Phase Positive Zero-Crossing Delay Timer for Y Side ...................................... 0.33 cycles
62YZNB B-Phase Negative Zero-Crossing Delay Timer for Y Side..................................... 0.33 cycles
62YZPC C-Phase Positive Zero-Crossing Delay Timer for Y Side ...................................... 0.66 cycles
62YZNC C-Phase Negative Zero-Crossing Delay Timer for Y Side..................................... 0.66 cycles
62T Trapped Charge Trip Input Dropout Timer .................................................................4 cycles
62V Trapped Charge Voltage Dropout Timer.....................................................................7 cycles
TCDpu Trapped Charge Detection Pickup Timer..................................................................... 1 cycle
TCDdo Trapped Charge Detection Dropout Timer................................................................ 12 cycles
62BALRM Breaker Alarm Dropout Timer ..................................................................................60 cycles
62OI Operation Input Dropout Timer for Breaker Alarms...................................................5 cycles
62BDNC BDNC Breaker Alarm Close Inputs Pickup Timer .................................................. 3 seconds
62TWO Trip Input Dropout Debounce Timer...................................................................... 0.25 cycles