Spécifications Micro Pmu
MAINS VOLTAGE INPUT CHANNELS
| Connection | L1, L2, L3, N PQube 3 screw terminals (max torque 5 inch-pounds (0,6Nm)) |
| Frequency Range | Nominal 50 Hz, 60 Hz |
| Mains Configuration | Single-phase, split-single-phase, delta, wye/star |
| Range of Nominal Input Voltage | 100 VAC ~ 960 VAC L-L (69 VAC ~ 480 VAC L-N) |
| Measurement Channels | Line-to-Earth, Neutral-to-Earth |
| Sampling Rate | 25,600 samples/s @ 50Hz and 30,720 samples/s @ 60Hz |
| Measurement Range | 0 VAC ~ 750VAC L-N (0 VAC ~ 1300 VAC L-L) |
| Isolation |
PQube 3 tested up to 5100VAC isolation to Earth UL/IEC 61010 tested, approval pending |
| Installation Category |
CAT IV UL/IEC 61010 for voltages up to 300 VAC L-N (equivalent to 480 VAC L-L), CAT III for voltages up to 600VAC L-N. Pollution degree 2. UL/IEC 61010 test pending |
| TVE (Total Vector Error) | Typical TVE | ±0,01% Typical short-term TVE stability for differential measurements: ±0.002% |
| Amplitude Resolution | 0,0002%FS (2 PPM) |
| Amplitude Accuracy (±% rdg ±% FS) | ±0,050% (10VAC – 750VAC L-N). Typical :±0,010% (120V – 600VAC L-N) |
| Angle Resolution | 0.001°- | (noise floor – useful for short-term difference measurements) |
| Angle Accuracy (±% rdg ±% FS) | ±0,010° 1 Standard Deviation Typical : ±0,003° |
CURRENT INPUT CHANNELS
| Measurement Type | External current transformer, voltage-type secondary – Screw terminal (Max torque 2 inch-pounds (0,25Nm)) |
| CT Input Ratio Range | 1:1 to 50000:1 |
| Nominal Input | 0.333 V RMS |
| Input Impedance | 33.3kΩ |
| Crest Factor | 3.5 (±1.17 Vpk) |
| Sampling Rate | 25,600 samples/s @ 50Hz and 30,720 samples/s @ 60Hz |
| Wire Connection | Min. 28AWG (0,8 mm2), Max. 16AWG (1,31mm2). 600V UL- recognized insulation required |
POWER MEASUREMENTS
| POWER (8 calculated channels) | I1 ~ I8 | Range: 0.333Vrms, 10Vpk, 0 ~ 6000 Amp with CTs, impedance: 33.3 kΩ |
| Total Power | Up to four (3-phase) loads |
| Peak Power | Intervals: 1 sec, 1 min, or user defined (up to one hour) |
| Reactive Power | VAR (per-phase and total) |
| Apparent Power | VA (per-phase, peak, and total) |
| Power Factor | TPF or DPF method (per-phase and total) |
MODES OF OPERATION
| ULTRA PRECISE MODE | Recordings to Internal Memory |
| Streaming according to C37.118.2-2011 (both simultaneously) | |
| Parameters | 3 voltage and 3 current phasors, frequency Active / reactive powers, power factor (recorded only) |
| LOW LATENCY MODE | Using P-Filter* (streaming according to C37.118) |
| Using M-Filter* (streaming according to C37.118) | |
| Latency: 50 ms typical | |
| Parameters | 4 voltage and 8 current phasors, frequency, 4 analog channels |
TECHNICAL SPECIFICATIONS
| Dimensions (L x W x H) | 4.33 in X 2.89 in X 3.08 in (metric: 11.0 cm X 7.34 cm X 7.82 cm), 35 mm DIN rail mountable |
| Operating Environment (temp., hum., alt.) | -20 ~ 65 °C (55 °C with PM2 AUX load), 5 ~ 95% RH (inside use), <2000 m above sea level (for EMC immunity, overvoltage, and other conditions, see full specs) |
| Power Supply (AC) | 24 VAC ±10% at 50/60/400 Hz, 1.5A max (PSL’s PM1 and PM2 modules supply PQube 3 compatible power at 100~240 VAC 50/60 Hz, and 120~370 VDC) |
| (DC) | ±24 ~ 48 VDC ±10% (polarity independent), 1A max. Power over Ethernet (PoE) compatible |
| Internal memory | 32 GB up to 30 days of synchrophasor data |
| Data backup | 16 GB (up to 128GB) micro SD card or USB 2.0 thumb drive |
| Clock Synchronization | GPS Mandatory |
| Communication | Ethernet port RJ-45, 10/100 (optional wireless and cell modem) |
| Communication protocols | FTP or HTTP (secure FTPS and HTTPS) |
Spécifications complètes sur demande
*Amplitude & angle accuracies are dependent when using the low latency mode