Record three-phase power quality and monitor for power quality disturbances with the new Fluke 1750 Power Recorder and the Fluke Power Analyze software. These power meters automatically record every power quality parameter and event, on every cycle – all the time.

Applications

• Long-term analysis: Uncover hard-to-find or intermittent issues; monitor critical equipment, capturing power quality events to correlate with equipment malfunction
• Power quality surveys: Quantify power quality throughout a facility, documenting results with professional reports
  
• Quality of service compliance: Validate incoming power quality at the service entrance
  
• Equipment Installation/Commissioning: Benchmark: power system prior to install to insure quality of service

 

Technical Specifications

Power quality measurement standards

Conformance  IEC 61999-1-4 Class 1, IEC 61000-4-30 Class A or B depending on measurement function, IEEE519, IEEE1159, IEEE1459 and EN50160 Clock/calendar  Leap years, 2 4-hour clock Real-time clock accuracy  Not more than ± 1 s/day Internal memory capacity for data  At least 2 GB Maximum recording period  At least 31 days Measurement time control  Automatic Maximum number of events  Limited only by the size of the internal memory Power requirements  100 to 2 40 V rms ± 10 %, 47-63 Hz, 40 W Operating time during interruptions (internal UPS operation)  5 minutes per interruption, 60 minutes total operating time without recharging Dimensions  215 mm x 310 mm x 35 mm (8.5 in x 12.2 in x 3.5 in) Mass (weight)  6.3 kg (14 lb)

Input

Measurement types  One Phase Plus Neutral, One Phase IT No Neutral, One Phase Split Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three Phase High Leg, Three Phase Open Leg, 2 Element Delta, 21/2 Element Wye Input channels  Voltage: 4 channels, ac/dc    Current: 5 channels Voltage channels  Input resistance: 2 MΩ    Input capacitance: < 2 0 pF Current input characteristics  2 V rms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs Measuring method  Simultaneous digital sampling of voltage and current. Digital PLL synchronized sampling, internal frequency reference used during voltage drops.

Synchronization and sampling

PLL-synchronization source  The PLL synchronizes to the A-N voltage for wye power types, and to the A-B voltage for delta power types. All listed power types can be characterized as either wye or delta. PLL lock range  42.5 to 69 Hz Sampling frequency  Voltage and current: 2 56 samples/cycle Inter-harmonics per IEC 61000-4-7: 2 560 points/10 cycles (50 Hz), 3072 points/12 cycles (60 Hz) Transient Voltage: 5 MHz A/D resolution  Voltage and current: 2 4 bits    Transient voltage: 14 bits

Voltage and current measurements

Voltage measurement range  AC voltage: 1000 V rms ± 10 % over range    DC voltage: ± 1000 V + 10 % over range Voltage crest factor  3 or less Current measurement range  Depends on current probe used Current crest factor  4 or less

RMS voltage

Measurement type  True rms calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by IEC 61000-4-30. Measurement uncertainty  AC: ± 0.2 % reading ± 0.1 % full scale, above 50 V rms    DC: ± 0.5 % reading ± 0.2 % full scale, above 50 V dc

RMS current

Measurement type  True rms calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards

Transient voltage (impulse)

Measurement type  Waveshape sampling Full scale  8000 V pk Sample resolution  200 nS Measurement uncertainty  ± 5 % reading ± 2 0 V (test parameters: 1000 V dc, 1000 V rms, 100 kHz)

Voltage swell (rms swell)

Measurement type  True rms (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines) Displayed data  Amplitude and duration of swell Measurement  Same as rms voltage

Voltage dip (rms sag)

Measurement type  True rms (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines) Displayed data  Amplitude and duration of dip or interruption Measurement  Same as rms voltage

Voltage dropout (interruption)

Measurement type  Same as voltage dip

LAN interface

Connector  RJ-45 Speed and type  10/100 Base-T, auto MDIX Communications protocol  TCP/IP over Ethernet

Wireless controller interface

Connection  wireless (2.4 GHz radio) Speed  up to 700 kbit/second Communications protocol  Bluetooth SPP

 

Power Measurements

Power, battery life

Measurement type  True rms calculated continuously: every cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards

Frequency

Measurement range  42.5 to 69 Hz Measurement source  Same as PLL synchronization source Measurement accuracy  ± 10 mHz (10 to 110 % of range, with sine wave)

Power Factor

Measurement range  0.000 to 1.000 Measurement accuracy  ± 1 digit from the calculation of each measured value (±3 digits for total)

Displacement power factor

Measurement method  Calculated from the phase difference between voltage fundamental and current fundamental Measurement range  - 1.000 (leading) to + 1.000 (lagging) Measurement accuracy  ± 0.5 % reading ± 2 % full scale ± 1 digit

Voltage unbalance and phase sequence

Measurement method  Positive sequence voltage divided by negative sequence voltage, per IEC 61000-4-30

Harmonic voltage and current

Analysis window  rectangular Analysis order  1st to 50th order Measurement accuracy  Voltage / Current: 1st to 2 0th orders: ± 0.5 % reading ± 0.2 % full scale, 2 1st to 50th orders: ± 1 % reading ± 0.3 % full scale (current sensor accuracy must be included for current and power) Measurement method  IEC 61000-4-7

Inter-harmonic voltage and current (intermediate harmonics)

Analysis window  rectangular Analysis orders  1.5 to 49.5th order Measurement method  IEC 61000-4-7

Flicker

Measurement method  IEC 61000-4-15    Plt for 2 hours and PSt for 10 minutes Measuring range:  0,1 to 5 (25) depending on voltage level, modulation and frequency

 

Environmental Specifications

Environmental

Operating environment  Indoors or in covered area outdoors, up to 2 000 m altitude Storage temperature and humidity  -20 °C to 50 °C, 80 % RH max, non-condensing Operating temperature and humidity  0 °C to 40 °C, 80 % RH max, non-condensing

Maximum rated working voltage

Voltage terminals  1100 V rms Voltage durability  5550 V rms ac for 1 minute, between voltage input terminals, voltage input terminals and current probes, and voltage input terminals and case (50/60 Hz, 1 mA sense current) Enclosure protection  IP30 (per EN 60529)

Standards:

EMC  EN 61326-1:1997+A1:1998 Class A    EN 61000-3-2:1995+A1:1998+A2:1998    EN 61000-3-3:1995 Safety  EN 61010-1 2 nd Edition; 2 000    Voltage input unit: Contamination Level 2 , Overvoltage Category 1000 V CAT III, 600 V CAT IV (anticipated overvoltage: 8000 V)