PPA5500-TE Transformer Edition

The Worlds Most Accurate Power Transformer Analyzer*

The PPA5500-TE is a high accuracy transformer power analyzer compliant to relevant testing within IEC60076-1, dedicated to the transformer industry. The PPA5500-TE build’s upon years of knowledge and experience within the transformer industry bringing a power analyzer with exceptional performance. Transformer analysis required very specific performance requirements including

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Specification Highlights
IEC Compliance IEC60076-1 Compliant
Voltage and Current Input Accuracy 0.02%rdg + 0.02%rng
45-65Hz Phase Accuracy 0.003deg
UKAS ISO17025 All accuracies certified to ISO17025
45-65Hz Power Accuracy (Watts) Total % error, PF 1 ~ 0.5 0.15%
45-65Hz Power Accuracy (Watts) Total % error, PF 0.5 ~ 0.05 0.23%
45-65Hz Power Accuracy (Watts) Total % error, PF 0.05 ~ 0.02 0.52%
45-65Hz Power Accuracy (Watts) Total % error, PF 0.02 ~ 0.01 0.55%
Measurement Bandwidth DC, 10mHz ~ 2MHz
Calibration Interval 24 Months
Communication Ports RS232, LAN, GPIB or USB
Warranty 3 Years

Featuring the industry renowned planar shunt technology (A shunt design topology developed by N4L) and FPGA based real time no gap analysis techniques, the PPA5500 is able to provide ground breaking low power factor analysis performance.

*According to N4L market research, Nov 2016

ISO17025 Calibration and Verification

Every PPA5500-TE is supplied with a comprehensive UKAS ISO17025 certificate, featuring power calibration at a range of power factors from unity to 0.01, as well as a UKAS Traceable calibration certificate up to 2MHz. N4L have developed a number of bespoke power calibrators in order to verify the accuracy of every power analyzer supplied over its entire frequency range, this is surprisingly uncommon within the instrumentation industry. Furthermore, development of an ISO17025 (UKAS) accredited Closed Loop Calorimeter in partnership with Oxford University (UK) has verified the performance of the N4L custom designed power calibration rigs with a very low uncertainty level, providing absolute confidence that the wide band performance of all N4L power analyzers is market leading.

Calibration Options

1. Standard Recalibration - Included with new instruments – Included with RMA Calibration
Wideband calibration (DC-2MHz) with optimisation of measurements on all ranges over the complete instrument bandwidth. Traceable to UKAS but not ‘accredited’.
2. UKAS (ISO17025) Calibration – Included with new instruments – Optional with RMA Calibration
UKAS Accredited calibration of Voltage, Current, Phase (PF) and Power on all ranges from 55-850Hz.
This option includes option 1 calibration.
In addition to the calibration certificates, the PPA will be fitted with a UKAS calibration label.
3. System Calibration – Standard - Optional with new instruments or RMA calibration
UKAS accredited calibration of a PPA together with an external sensor.
This option is separate to option 1 which must also be ordered when system calibrating.
Note: This is end-to-end calibration of the of the PPA+sensor ‘system’ at an N4L defined test point or points and does not include UKAS calibration of the PPA alone (option 2).

4. System Calibration – Non-Standard - Optional with new instruments or RMA calibration
As Option 3 but applied at customer requested test points. This will be UKAS only for frequencies between 16-850Hz.

5. UKAS IEC61000 H+F Calibration - Optional with new instruments or RMA calibration
UKAS accredited calibration of PPA55x1 series units that includes all prevailing type test protocols for fully compliant Harmonic and Flicker testing.
This option includes option 1 and option 2 calibration.
6. PPA55xx-TE Calibration – Included with PPA-TE order – Optional with RMA Calibration
Custom UKAS calibration that includes a series of low power factor tests down to 0.01 PF over the frequency range of 16-450Hz.
This option includes option 1 calibration.
7. UKAS calorimeter power calibration – Optional with new instruments or RMA calibration
UKAS accredited power calibration via calorimetry. Available at customer requested frequency(s) and with sinusoidal or harmonically distorted wave shapes within a frequency range of 45Hz to 2MHz.
This option includes options 1 and 2.


PPA5500-TE_brochure Feb 2019 PDF, 1Mb
PPA55xx-Dimensions PDF, 85kb
PPA55xx-Rack-Dimensions PDF, 225kb
PPA45_5500 Brochure March 2016 PDF, 6Mb



PPA55xx_ v2_169_user-manual PDF, 1.45Mb
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PPA55xx Comms Manual v2_159 PDF, 840kb
PPA55 Start up Manual v2.169 PDF, 3.58Mb
PPA Datalogger User Manual PDF, 3.1Mb

PPA5500 Options, Software and Accessories

COMMS_ICON Communications Interfaces:
  • Standard: LAN, USB, RS232 and GPIB Communication Ports
PROBE_ICON Probes and Probe Accessory Options:
  • ULCP Ultra Low Capacitance Probes (Active, For use with DUT's susceptible to capacitive loading) - 1.5pF, 1000Vrms, dc to 2MHz, 1000:1
  • TT-HV 250 High Voltage Probe (Passive) - 2.5kVpk, 100:1
  • TT-HVP 15HF High Voltage Probe - 15kVpk, 1000:1
  • ATT20 - 20:1 Attenuator (For use when voltage probe output does not meet PPA ext. input 3Vpk max rating) - For connection to PPA ext input and external attenuating probes.
EXTENSION_ICON Extension Port and Accessory Options:
  • ADI40 40 Channel Analogue <> Digital IO Interface
  • PCIS - Phase controlled inrush for (Use when control of DUT source with respect to phase angle is required
CONNECTOR_ICON Leads, Connection and Interface Options:
  • 20A Connection lead set for one phase (supplied as standard) - 20Arated, 1.5m long + Alligator Clips
  • 36A Connection lead set for one phase - 36A rated, 1.5m long + Alligator Clips
  • Voltage Breakout Lead set - 3 x 2m BNC to BNC with 4mm Banana Voltage break out leads + 2 x voltage low shorting leads (For use when distance between analyser and DUT is large and HF series external shunt is being used, facilitates short voltage connections.
  • Universal Breakout Box - Single Phase 10Arms Universal Breakout box
  • RS232 Cable (Supplied as Standard) - 9 Pin null modem cable
  • USB Cable (Supplied as standard) - 2m long A Male to B Male USB Cable
CASES_ICON Carry Cases:
  • PPA45/55xx Soft Carry Case - Black Nylon Padded Case with accessory space, handle and strap
  • PPA45/55xx Hard Carry Case - PPA45/55xx Hard Aluminium Flight Case with accessory space, handle and lock (Ideal for Aircraft Hold)
RACK_ICON Rack Mounting Kit Options:
CALIBRATION_ICON Calibration and Documentation (Unit supplied with UKAS ISO17025 certificate as standard when new):
  • Standard Recalibration (ISO17025 Traceable) - Single Phase PPA (PPA5510)
  • Standard Recalibration (ISO17025 Traceable) - Two and Three Phase PPA (PPA5520 & PPA5530)
  • ISO17025 UKAS Calibration + Standard Calibration - Single Phase PPA (PPA5510)
  • ISO17025 UKAS Calibration + Standard Calibration - Single Phase PPA (PPA5520 & PPA5530)
  • PPA55xx Loan Instrument available upon request during Calibration or Repair (Available in Europe only)
  • Spare set of user manuals - Hard copy of user and communications manual
CLAMP_ICON Current Measurement Options:
PC_ICON PC Software (Free of charge):

Application Notes and Related Articles

Video Tutorials Tutorial 1 : Power Analyzer Turn on and External Shunt Configuration Tutorial 2 : PWM Motor Drive Efficiency Measurements Tutorial 2a : PWM Motor Driver Efficiency Measurements (Extended version) Tutorial 3 : Standby Power Measurement of a USB Mains Adaptor Tutorial 4 : AC/DC Converter Efficiency Measurements Application Notes APP012 - N4L's Unique Current Shunt Design Topology Explained APP013 - AC-DC Switch Mode Power Supply Efficiency Measurements APP014 - 3 Phase 2 Wattmeter Power Analysis Explained APP015 - IEC62301/EN50564 Standby Power Testing the N4L Power Analyzers APP017 - PWM Inverter Drives - Pulse Wide Modulation Theory APP018 - Transformer Loss and Efficiency testing with N4L Power Analyzers APP019 - RMS and Peak range consideration in Precision Power Analyzers APP021 - Master/ Slave Efficiency testing with N4L Power Analyzers APP023 - Harmonic analysis in Power Applications APP025 - High Speed PWM Motor Drive Analysis APP035 - Low Power Factor Measurement & Calibration

PPA5500 Full Instrument Specification

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