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SPECIFICATIONS
Controls
Inputs/Outputs
10
CLOCK
Setup: ....................................................................... Date and time
IRIG-B: ...................................................................... Auto-detect (DC shift or Amplitude Modulated)
Accuracy with IRIG-B: ....................................... ± 1 ms
Accuracy without IRIG-B:................................ ± 1 min / month
LOGIC ELEMENTS
Number of logic elements:............................. 16
Trigger source inputs per element: ............ 3
Block inputs per element: ............................... 3
Supported operations: ..................................... AND, OR, NOT, Pickup / Dropout timers
Pickup timer: ......................................................... 0 to 60000 ms in steps of 1 ms
Dropout timer:...................................................... 0 to 60000 ms in steps of 1 ms
BREAKER FAILURE
Pickup Level: ......................................................... 0.05 to 20.00 x CT in steps of 0.01 x CT
Dropout Level:...................................................... 97 to 98% of pickup
Timer 1 Delay: ...................................................... 0.03 to 1.00 s in steps of 0.01 s
Timer 2 Delay: ...................................................... 0.00 to 1.00 s in steps of 0.01 s
Time Delay Accuracy:....................................... 0 to 1 cycle (Timer 1, Timer 2)
Level Accuracy:.................................................... per CT input
Reset Time: ............................................................ <14 ms typical at 2 x pickup at 60 Hz
AMBIENT TEMPERATURE
High Temperature Pickup:.............................. 20°C to 80°C in steps of 1°C
Low Temperature Pickup: ............................... -40°C to 20°C in steps of 1°C
Time Delay:............................................................ 1 to 60 min in steps of 1 min
Temperature Dropout:...................................... Configurable 90 to 98% of pickup
Temperature Accuracy: ................................... ±10°C
Timing Accuracy:................................................ ±1 second
CONTACT INPUTS
Inputs: ...................................................................... 10
Selectable thresholds: ...................................... 17, 33, 84, 166 VDC
Tolerance:............................................................... +/- 10%
Recognition time:................................................ 1/2 cycle
Debounce time: ................................................... 1 to 64 ms, selectable, in steps of 1 ms
Maximum input voltage & continuous
current draw:................................................... 300 VDC, 2 mA, connected to Class 2 source
Type: ......................................................................... opto-isolated inputs
External switch: ................................................... wet contact
Daylight Saving Time
Amplitude modulated: 1 to 10 V pk-pk
DC shift: 1 to 10 V DC
Input impedance: 40 kOhm ± 10%
<16 ms typical at 2 x pickup at 50 Hz
345 TRANSFORMER PROTECTION SYSTEM – QUICKSTART GUIDE
CHAPTER 1: INTRODUCTION
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