PQA 7700 Power Quality Analyser

PQA7700 Power Quality Analyser

The PQA7700 is a handheld, simple to use, portable power quality analyser with four current and four voltage measuring channels. Integrated in a rugged housing and packed withpowerful functions it can be effectively used formonitoring, troubleshooting and analysing of power quality conditions in power distribution networks either in industry or utilities. 

Features:

• 4 voltage channels with wide measurement range: 0 ÷ 1000 Vrms, CAT III/1000V
• 4 current channels with support for automatic clamp recognition and  ‘on instrument’ range selection
• Compliance with power quality standard IEC 61000-4-30 Class S. Predefined recorder profile for EN 50160 survey
• Power measurements compliance with IEC 61557-12 and IEEE 1448
• Simultaneous 8 channels - 16bit AD conversion for accurate power measurements (minimal phase shift error)
• Simple to use and powerful recorder with possibility to record 509 different power quality signatures
• Voltage events and user defined alarms capture
• 15 hour of autonomous (battery) supply.

The following measuring functions are represented:

• Voltage: True RMS, peak, crest factor (4 channel)
• Current: True RMS, peak, creast factor (4 channel)
• Power: active, reactive, apparent
• Power factor, cos φ
• Unbalance, flicker measurement
• Harmonic analysis up to 50th
• Energy (active, reactive, generated, consumed)
• Power quality analysis according to EN50160
• Capturing and recording of power supply events (shut downs, interruptions, swells, dips
• Inrush currents monitoring and recording
• Recording up to 10 adjustable alarms
• Waveform displaying and snapshot

Application

• Power quality assessment and troubleshooting in low and middle voltage electrical systems
• Checking power correction equipment performance
• Harmonics spectrum analysis for selection of harmonic filters
• UPS, voltage generators and regulators, checking and troubleshooting·         Voltage, current, power monitoring and recording
• Consumption profile recording

AC voltage input

Number of inputs
4

Input voltage range
20 … 1500 Vrms L - N (20 … 2600 Vrms L - L)

Basic accuracy & resolution
0.2% of reading, 10 mV, 100 mV

Sampling rate & frequency range
1024 samples per 10 periods / 10 … 70 Hz

AC Current inputs

Input voltage range
20.0 mVrms … 2 Vrms

Current measuring range
3 … 6000 A (for current clamp A 1227)

Resolution
0.1 mV (0.1 A for current clamp A 1227)

Basic accuracy @ sampling rate
0.25% of reading / 1024 samples per 10 periods

Function

Frequency
10.00 … 70.00 Hz

Resolution & accuracy
2 mHz / ±10 mHz

Power (W, VA, VAR)
0.000 k … 9.999 M

Resolution & accuracy
4 digits / ±0.5 % of reading

Power factor
-1.00 … 1.00

Resolution & accuracy
0.01 / ±0.02

cos ϕ
0.00 … 1.00

Resolution & accuracy
0.01 / ±0.02

Harmonics analysis up 50th component
UhN < 3% Unom / 3% Unom < UhN < 20% Unom / IhN < 10% IN / 10% IN < IhN < 100% IN

Resolution & accuracy
10 mV / 0.15 %·Unom / 5 %·UhN / 0.15 %·IN / 5 %·IhN

THD
0 % Unom < THDU < 20% Unom / 0 % IN < THDI < 100% IN / 100 % IN < THDI < 200% IN

Resolution & accuracy
0.1% /