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CET Electric Technology
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Current THD for each 1-Ø SM
Non-Volatile Memory and Logs
1GB On-Board Non-Volatile Memory
Interval Energy Recorder (IER) Log
Complete energy profiling of Mains-I/II, 1-Ø , 2-Ø and 3-Ø SMs, VMs as well as the Mains-I/II and
VMs for Tariffs T1 and T2
Programmable Interval at 5, 10, 15, 30 or 60 minute intervals
Fixed Log Depth at 10,000 entries, capable of recording for 3 months @ 15-min interval or 1 year
@ 60-min interval
Max/Min Log
Mains U & I, Frequency, kW, kvar, kVA, Loading Factor, PF, Unbalance, THD, TOHD, TEHD
1-Ø SMs: I, kW, kvar, kVA, PF, Loading Factor and I THD
2-Ø and 3-Ø SMs: I avg, kW, kvar, kVA, PF and Loading Factor
RTD1 and RTD2
Max./Min. Timestamp for Historical, This Month and Last Month
SOE Log
1000 FIFO events time-stamped to ±1ms resolution
Setup changes, Power-On/Off, Alarms, Diagnostics and I/O operations
Data Recorder (DR) Log
10 Data Recorders of 64 parameters each for a total of 640 Real-time parameters
Programmable Log Depth (65535 max.) and Recording Interval (60-345600s)
Waveform Recorder (WFR) Log
Support up to 16 WFR Log entries
Record V1-V3 and I1-I3 for both Mains-I and Mains-II
Programmable resolutions (samples/cycle x # of cycles) at 64x150, 64x75, 32x300, 32x150, 16x600
and 16x300
Triggered by Dip/Swell and Interruption Setpoints
Alarming
Support powerful alarming functions for Mains, Branches, RTDs and DIs
Support High-High, High, Low, Low-Low and OFF Alarms
Configurable Threshold and Time Delay for each branch
Support Current, Voltage, Power, PF, Frequency, Unbalance, Harmonic Distortion, Temperature and
DI status change Alarms and their respective Alarm Counters
Support Dip/Swell and Interruption Setpoint Alarms, Phase Reversal Alarm and Phase Loss Alarm
since Firmware V1.00.05
All alarms are recorded in the SOE Log
Inputs and Outputs
Digital Inputs
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2 standard or 4 optional* DI channels, volts free dry contact, 24VDC internally wetted
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Support up to 4 External DI Modules from CET (e.g. PMC-521D) via Port 2 (RS-485)
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1000Hz sampling for status monitoring with programmable debounce