PQM-702
Power quality analyzer
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- Thông số Specs Details Overview Components Packages Resources Additional Modules Complementary products Architecture Tools Benefits Features Customer Ordering
ANALYZER MEASURES AND RECORDS ACCORDING
TO THE IEC 61000-4-30
CLASS A STANDARD
- Power to the analyzer is supplied from tested mains (internal power supply) and is used in all types of networks from 64 V to 760 V.
- With particular emphasis on measurements at low voltage poles, due to the ease of connection.
- Has an independent power supply socket, especially suited for voltage measurements for transformers and DC circuits.
- Remote control and data transfer through a built-in GSM modem (GPRS).
- Anti-theft feature – SMS notification in the event of position change – built-in GPS receiver.
- Real-time clock synchronized to GPS protocol.
Possible measurements:
- Measurements according to EN 50160
- Voltage L1, L2, L3, N-PE
– average, minimum, maximum and instantaneous values, range to 760V, ability to work with voltage transformers, - Current L1, L2, L3, N (four inputs)
– average, minimum, maximum and instantaneous values, measurement current with range to 3 kA (depends on used clamp), ability to work with current transformers, - Crest factor for voltage and current,
- Frequency from 40Hz to 70Hz ,
- Active, reactive, distortion, apparent power, including the type of reactive power (capacitive, inductive),
- Power recording:
– Budeanu method,
– IEEE 1459, - Active, reactive, apparent energy,
- Power factor, cosφ, tgφ,
- K factor (transformer overload caused by the harmonics),
- Up to 50th harmonics for voltage and current,
- Total Harmonic Distortion (THD) for voltage and current,
- Short-term (PST) and long-term (PLT) flicker,
- Unbalance of voltage and current,
- Current events detection including waveforms recording,
- Current and voltage waveforms recording after each averaging period.
The device is designed to work with networks:
- with nominal frequency 50/60Hz,
- with nominal voltage:
64/110 V; 110/190 V; 115/200 V; 127/220 V; 220/380 V; 230/400 V; 240/415 V; 254/440 V; 290/500 V; 400/690 V, - DC network
Supported networks:
- single-phase,
- two-phase with common N conductor,
- three-phase star connection with and without N conductor,
- three-phase delta.
| Specification | Range | Resolution | Accuracy | |
AC | – | 0,0…760,0 V | 0,01 % Un | ±0,1% Un |
| Crest Factor | Voltage | 1,00…10,00 (≤1,65 for voltage 690 V) | 0,01 | ±5% |
| Current | 1,00…10,00 (≤3,6 Inom) | 0,01 | ± 5% m.v. | |
| AC current TRMS | – | depends on the clamp* | 0,01 % of nominal range | ±0,1% of nominal range (add clamps accuracy) |
| Frequency | – | 40,00…70,00 Hz | 0,01Hz | ±0,01 Hz |
| Active, reactive, apparent power and distortion | – | depends of configuration (transformers, clamp) | up to 4 decimal places | depends on configuration (transformers, clamp) |
| Active, reactive apparent energy | – | depends of configuration (transformers, clamp) | up to 4 decimal places | the same as above |
| cosφ and Power Factor (PF) | – | 0,00…1,00 | 0,01 | ±0,03 |
| tgφ | – | 0,00…10,00 | 0,01 | depends on Active and Reactive power accuracy |
| Harmonics | Voltage | same as for AC voltage TRMS | same as for AC voltage TRMS | ±5% Uh for Uh ≥ 1% Un ±0,05% Un for Uh < 1% Un |
| Current | same as for AC current TRMS | same as for AC current TRMS | ± 5% Ih for Ih ≥ 3% In ± 0,15% In for Ih < 3% In | |
| Total Harmonics Distortion | Voltage | 0,0..100,0% | 0,1% | ±5% |
| Current | ±5% | |||
| Harmonics active and reactive power | – | depends on configuration (transformers, clamp) | depends on current and voltage minimum value | – |
Angle | – | -180,0…+180,0o | 0,1o | ±(h x 1o) |
| K-Factor | – | 1,0…50,0 | 0,1 | ±10% |
| Flicker | – | 0,20…10,00 | 0,01 | ±5% |
| Unbalance | Voltage and Current | 0,0…20,0% | 0,1% | ±0,15% (absolute error) |
*Clamp F-1/F-2/F-3:0..3000 A (10000 Ap-p) *Clamp C-4: 0..1000 A (3600 Ap-p)*Clamp C-5: 0..1000 A (3600 Ap-p)*Clamp C-6: 0..10 A (36 Ap-p) (without current transformers) *Clamp C-7: 0…100 A (360 Ap-p )
