Description
Class-A compliance for the most demanding power quality tests
The Fluke 1760 Three-Phase Power Quality Recorder is fully compliant to IEC 61000-4-30 Class-A, for advanced power quality analysis and consistent compliance testing. Designed for analysis of utility and industrial power distribution systems, in medium- and low-voltage networks, this power quality monitor provides the flexibility to customize thresholds, algorithms, and measurement selections. The 1760 power recorder captures the most comprehensive details on user-selected parameters.
Applications
- Detailed disturbance analysis – Perform high-speed transient analysis and uncover root cause of equipment malfunction for later mitigation and predictive maintenance. The fast transient option, with its 6000 V measurement range, allows capture of very short impulses such as lightning strikes.
- Class-A quality-of-service compliance – Validate incoming power quality at the service entrance. Thanks to Class A compliance, the Fluke 1760 allows undisputable verification.
- Event correlation at multiple locations – Utilizing GPS time synchronization, users can quickly detect where a fault occurred first, either inside or outside the facility.
- Galvanic separation and DC coupling – Allows complete measurements on dissimilar power systems. For example troubleshoot UPS systems by simultaneously recording the battery voltage and power output
- Power quality and power load studies – Assess baseline power quality to validate compatibility with critical systems before installation and verify electrical system capacity before adding loads.
| Overview of Measurement Functions | |
| Statistical Evaluation | Power quality statistics according to EN50160 and DISDIP tables like ITIC, CEBEMA, ANSI |
| Continuous Recording | Fluke 1760 records rms values together with corresponding minimum and maximum values for:
continuously with the following time aggregations: |
| Triggered Recordings | rms: Aggregation time is adjustable between 10 ms (1/2 cycle), 20ms (1 cycle), 200ms (10/12 cycles) or 3 sec (150/180 cycles). Calculating rms values, Harmonics and Interharmonics is performed synchronous to the power frequency. Basic aggregation for harmonics and interharmonics is 200ms Oscilloscope: Sample rate is 10.24 kHz for all 8 channels Fast Transients: Sample rate is selectable from 100 kHz to 10 MHz for channel 1-4 FFT of Fast Transients |
| Mains Signalling | Phases and N-conductor, Voltage and current |
| Online Mode | Variable refresh rate. This feature allows verification of instrument set up and delivers a quick overview of oscilloscope, transients and events. |
| General Data | |
| Intrinsic uncertainty | refers to reference conditions and is guaranteed for two years |
| Quality system | developed, manufactured as per ISO 9001: 2000 |
| Environment conditions | |
| Operating temperature range: | 0 °C to +50 °C; 32 °F to +122 °F |
| Working temperature range: | -20 °C to +50 °C; -4 °F to +122 °F |
| Storage temperature range: | 20 °C to +60 °C; -4 °F to 140 °F |
| Reference temperature: | 23 °C ± 2 K; 74 °F ± 2 K |
| Climatic class: | B2 (IEC 654-1), -20 °C to +50 °C; -4 °F to +122 °F |
| Max. operating altitude: | 2000 m: max. 600 V CAT IV*, power supply: 300 V CAT 2000 m: max. 600 V CAT IV*, power supply: 300 V CAT III 5000 m: max 600 V CAT III*, power supply: 300 V CAT II * depending on sensor |
| Reference conditions | |
| Environment temperature: | 23 °C ± 2 K ; 74°F ± 2 K |
| Power supply: | 230 V ± 10 % |
| Power frequency: | 50 Hz / 60 Hz |
| Signal: | declared input voltage Udin |
| Averaging: | 10 minute intervals |
| Housing | insulated, robust plastics housing |
| EMC | |
| Emission: | Class-A as per IEC/EN 61326-1 |
| Immunity: | IEC/EN 61326-1 |
| Power supply | |
| Range: | AC: 83 V to 264 V, 45 to 65 Hz DC: 100 V to 375 V |
| Safety: | IEC/EN 61010-1 2nd edition 300 V CAT III |
| Power consumption: | max. 54VA |
| Battery pack: | NIMH, 7.2 V, 2.7 Ah In case of a power supply failure an internal battery maintains the supply for up to 40 minutes. Afterwards, or in case of discharged accumulators the Fluke 1760 is turned off and continues the measurements with the latest settings as soon as the supply voltage returns. The battery can be replaced by the user. |
| Display | |
| Fluke 1760 features LED indicators for the status of the 8 channels, phase sequence, power supply (mains or accumulator), memory usage, time synchronization, and data transfer. | |
| Power LED: | • Permanent light: normal power supply from mains. • OFF: supply via internal accumulator in case of a power failure. |
| Channel LEDs | 3-color LEDs per channel for: • overload condition • under load condition signal level in nominal range |
| Data memory | 2 GB Flash memory depending on model |
| Memory model | Linear |
| Interfaces | Ethernet (100MB/s), compatible to Windows® 98/ME/NT/2000/XP RS 232, external modem via RS 232 |
| Baud rate for RS 232 | 9600 Baud to 115 kBaud |
| Dimensions | 325 mm x 300 m x 65 mm; 2.8 x 11.8 x 2.6 in. (H x W x D) |
| Weight | appr. 4.9 kg; 10.8 lbs. (without accessories) |
| Warranty | 2 years |
| Calibration interval | 1 year recommended for Class-A, otherwise 2 years |
| Signal Conditioning | |
| Range for 50 Hz systems | 50 Hz ± 15 % (42.5 Hz to 57.5 Hz) |
| Range for 60 Hz systems | 60 Hz ± 15 % (51 Hz to 69 Hz) |
| Resolution | 16 ppm |
| Sampling frequency for 50 Hz power frequency | 10.24 kHz, The sampling rate is synchronized to mains frequency. |
| Uncertainty for frequency measurements | < 20 ppm |
| Uncertainty of internal clock | < 1s / day |
| Measurement intervals | |
| Aggregation of the interval values as per IEC 61000-4-30 Class-A | |
| Min-, Max-values: | Half cycle, e.g.: 10 ms rms values at 50Hz |
| Transients: | Sample rate 100 kHz to 10 MHz per channel |
| Harmonics | as per IEC 61000-4-7:2002: 200 ms |
| Flicker | as per EN 61000-4-15:2003: 10 min (Pst), 2 h (Plt) |
| Measurement Inputs | |
| Number of inputs | 8 galvanically isolated inputs for voltage and current measurements. |
| Sensor safety | up to 600 V CAT IV depending on sensor |
| Basic safety | 300 V CAT III |
| Nominal voltage (rms) | 100 mV |
| Range (peak value) | 280 mV |
| Overload capacity (rms) | 1000 V, continuously |
| Voltage rise rate | max. 15 kV / µs |
| Input resistance | 1 MΩ |
| Input capacitance | 5 pF |
| Input filter | Each channel is equipped with a passive low-pass filter, an anti-aliasing filter and a 16-bit A/D converter. All channels are sampled synchronously with a common quartz-controlled clock pulse. The filters protect against voltage transients and limit the signal rise rate, reduce high frequency components and especially the noise voltage above half the sampling rate of the A/D converter by 80 dB, thus achieving very small measuring errors in an exceptionally large amplitude range. This is also valid under extreme operating conditions like transient voltages at the output of converters. |
| Uncertainties | |
| Uncertainty at reference conditions | |
| Uncertainty including the voltage sensors is in compliance with IEC 61000-4-30 Class-A. All voltage sensors are suitable for DC up to 5 kHz | |
| With Sensor 1000 V | 0,1% at Udin = 480 V and 600 V P-N |
| Sensor 600 V | 0,1% at Udin = 230 V P-N |
| Intrinsic uncertainty for harmonics | Class I as per EN 61000-4-7:2002 |
| Reference conditions | 23 °C ± 2 K < 60 % rH; 74 °F ± 2 K < 60 % rH Warmed up instrument > 3h Power supply: 100 V to 250 V ac |
| Temperature drift | 100 ppm / K |
| Aging | < 0.05 % / year |
| Common mode rejection | > 100 dB at 50 Hz |
| Temperature drift | Change of amplification through temperature: < 0.005 %/K |
| Aging | Change of amplification due to ageing: < 0.04 %/year |
| Noise | Noise voltage, input short-circuited: < 40 µV |
| DC | ± (0.2% rdg + 0.1% sensor) |
Power Measurement/Power Quality Analyzer Template
Type (Power Quality) 3 Phase
Maximum Voltage AC 1000 V
Maximum Voltage DC 1000 V
True Power / Work ( W) Yes
Apparent Power (VA) Yes
Reactive Power (VAR) Yes
Measurement Frequency (Power Quality) 50 Hz, 60 Hz
Display (Power Quality) Digital
Alarms Yes
Transient Capture Yes
Displays Waveform Yes
Energy Yes
Phasor Diagrams No
Power Factor (Power Quality) Yes
Harmonics Yes
Maximum Harmonics Range 200
Current Clamps Included No
Class A Compliant Yes
Crest Factor Yes
CAT Rating IV
Country of Origin: Germany
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