1. Power Sensors Ltd – www.PowerSensorsLtd.com
Introducing PQube 3
Power Sensors Ltd –

2. PQube® 3 PQube3/PQube comparison 1/4
PQube Classic
PQube 3
Power Quality uses IEC methods -
HF impulse detection – no recording -
Power Quality IEC Class A Ed kHz-150kHz cond. emissions measurements 4MHz HF impulse detection & recording Rapid voltage Changes (RVC)
Energy Metering– Accuracy class : ANSI C12.20 Accuracy Class 0.5
Energy Metering– Accuracy class : IEC Class 0,2s
ANSI C12.20 Class for the entire chain including CT’s
Hardware Voltage channels
External Module for Current (4, 5 chan.)
2 analog AC/DC inputs External Ethernet module
Embedded UPS with up to 9 mins
8 Current inputs channels embedded
4 analog AC/DC inputs Ethernet embedded, 3 USB ports External UPS with up to 30 mins/3 hours battery autonomy (configurable)
Power Sensors Ltd –

3. PQube® 3 PQube3/PQube comparison 2/4
PQube Classic
PQube 3
Sampling frequency samples per cycle
Sampling frequency samples per cycle - 1MHz/4MHz High Frequency impulse - 1MHz for 2kHz-150kHz measurements
Voltage inputs Accuracy: ±0.2% rdg ±0.2% FS spec
Voltage inputs Accuracy: ±0.01% rdg ±0.01% FS typical
Current inputs Accuracy (amplitude): ±0.2% rdg ± 0.2% FS spec
Excluding external CTs
Current inputs Accuracy (amplitude): ±0.05% rdg ±0.05% FS typical Including the whole chain! PQube3 + CT’s
Current inputs Accuracy (angle): ±1deg typical
Current inputs Accuracy (angle): ±0.07° typical Including the whole chain! PQube3 + CT’s
Power Sensors Ltd –

4. PQube® 3 PQube3/PQube comparison 3/4
PQube Classic
PQube 3
Environment Probes TH1 Temperature
Humidity
Environment Probes EnviroSensor ENV2 Temperature
Humidity Barometric pressure
3 axis Acceleration (mechanical shocks, seismic disturbances..)
Communications
External Ethernet module
Web server
server
FTP
Modbus TCP/IP
Communications 3 USB ports for probes and data copy
Embedded Ethernet module
Web server (HTTP and secure HTTPs)
server with secure layer SSL
FTP and FTP secure (FTPs)
Modbus TCP/IP SNMP (polling, v1,v2 and v3 with traps)
Simultaneous FTP/ Modbus/HTTP sessions
Power Sensors Ltd –

5. PQube® 3 PQube3/PQube comparison 4/4
PQube Classic
PQube 3
Clock synchronization
SNTP
NTP
GPS
Storage
4 GB SD Card
Data extraction locally by removing the SD card (measurements are interrupted)
Internal 16GB flash memory
Removable 16GB micro SD Card
Data can be extracted locally with no measurement interruption
Power Sensors Ltd –

6. PQube® 3 Performance improvements PQube classic
Modbus : approx. 150 parameters performance impacted upon event generation or trend generation
Modbus refresh rate : 1 Hz
Simultaneous data download sessions
Performance :
Modbus : >3000 parameters no impact upon event generation or trend generation
Modbus refresh rate: 2-5 Hz
Faster event generation
Faster daily trend generation (3 Phase PQube w PQDIF generation): indicative values: PQube 3: received < 10mins after end of day PQube Classic : received 45 mins or more after end of day
Power Sensors Ltd –