N4L Ltd. (UK) Precision Measurement Instrumentation UK Based, est AC POWER SOURCES POWER ANALYZERS FREQUENCY RESPONSE ANALYZERS SELECTIVE LEVEL METERS IMPEDANCE ANALYZERS

Company Overview  Relocated to new manufacturing facility April 2015  Location : Leicester, UK  3x Increased manufacturing capacity  Improvements to Calibration facility  Stable platform for N4A Power Source production  Continuous Innovation Slide 1 of 14

N4A Power Sources  N4A03 + N4A06 Single Phase Output Solutions up to 6kVA (20Arms)  N4A18, N4A30 + N4A67 3 Phase + Single Phase output solutions up to 67kVA (75Arms)  X2 short term overload current capability  Equivalent to linear amplifiers low output distortion  Arbitrary waveform generator  Wideband response above 1kHz, up to 15kHz small signal  Sequencing  Harmonic generation

3 Phase Output Programmable Power Sources  N4A18, N4A30 and N4A67 Three Phase Output Power Sources  “Parallel Option” enables Single Phase output from three phase source  Removable Inverter modules for easy maintenance, no need to return entire power source  Feature same response and distortion as N4A03/N4A06

N4A Power Sources N4A Power Source Output Power ModelOutput Power Maximum Continuous Phase Current (3 second inrush) N4A033kVA10Arms (20Arms) N4A066kVA20Arms (40Arms) N4A1818kVA20Arms Per Phase (40Arms) N4A3030kVA32Arms Per Phase (64Arms) N4A6767kVA75Arms Per Phase (100Arms) Slide 2 of 14  3kVA to 67kVA  2x Output Current for 3 seconds (N4A67 x1.33)  3 Phase sources capable of single phase parallel output  Arbitrary waveform generation, including harmonic generation, phase angle, frequency, sequencing, amplitude modulation and much more

Amplifier Topology  Unique switching output technology provides typical output distortion (THD) of 0.1%  Ability to generate AC + DC  1kHz full signal bandwidth Slide 3 of 14

User Interface  Most parameters accessible from main screen  Use “Home” button to activate the onscreen menu, then <>  Ability to change Voltage, Frequency, adjustment parameters, output ON/OFF, sense, waveform type and coupling from main screen  More complex parameters in separate menus ^ ^

THD of Sinusoidal Output  Typical <0.1% THD  Measurement of output utilising PPA5500  PPA5500 benefits from isolated input, eliminating requirement for differential probe + oscilloscope 230Vrms, 50Hz Sinusoidal Output

Square Wave Generation  Ability to generate high frequency square waves due to bandwidth up to 15kHz. 50Hz Square wave, excellent signal integrity 500Hz square wave, good signal integrity within 3V/us slew rate limitation

Triangle Wave Generation 50Hz triangle wave, excellent signal integrity 500Hz triangle wave, excellent signal integrity

Harmonic Synthesis  All N4A units feature the ability to generate harmonics up to 10kHz  N4A units are calibrated up to 10kHz  Future implementation of various IEC61000 standards for EMC compliance Example: Fundamental 500Hz, 7 th Harmonic Generation 20Vrms

Harmonic Synthesis 230Vrms, 500Hz Fundamental 20Vrms 7 th Harmonic (3.5kHz) 230Vrms, 50Hz Fundamental 20Vrms 7 th Harmonic (350Hz)

Sequencing – Example IEC Application  Utilisation of existing “Sequence” mode  Future upgrade -Full automation of IEC tests  Future expansion to other IEC x tests Sequence mode allows the user to perform dropouts, sags, surges etc.

IEC In this example, the sequence function in the PPA is programmed to produce compliant waveforms to IEC Example Class 1 230Vrms reference Voltage waveforms are shown below Class 2 – 0% during 0.5 cycle Class 2 – 70% during 25 cycles Class 2 – 0% during 1 cycle

EMC Compliance  IEC  IEC  IEC  IEC  IEC  IEC  IEC

Power Analyzers  Best Phase Accuracy in Market (0.003deg)  Best High Frequency response in Market  Most comprehensive calibration protocol in Market  UKAS Calibrated upon supply (Only manufacturer to provide ISO17025 as standard)  Only Power analyzer Manufacturer to be accredited to ISO17025 for IEC and IEC  Unique “Planar” current shunt design  Real time “no gap” analysis  Continuous high sample rate, regardless of fundamental frequency (2Ms/s – PPA5500)

Power Analyzer Models

Transformer Testing – PPA5500-TE PPA5500-TE : Transformer Edition deg Phase accuracy % Power accuracy at PF= %rdg %rng error No load Tests Full Load Tests ADI40 – Temperature data collection

Industrial Motor Testing  High frequency performance of N4L Power analyzers are market leading (<10% 1MHz, typical market performance of 40% 1MHz.  “PWM Inverter Drive Mode” provides simple intuitive configuration, parallel filtering frequency detection algorithms, wideband power analysis, dynamic frequency tracking.  Efficiency Measurements, PPA3500, PPA4500 and PPA5500  Up to 24 phase measurements (Via PPALoG with 4xPPA3560’s)  Inrush testing – 2MS/s (PPA5500) sample rate to capture high frequency events  DFT based harmonic analysis, no spectral leakage, square windowing

Standby Power Testing  CF20 Measurement capability, typical waveforms exhibit CF=15  No gap analysis – No missing data, vital for accurate measurements of asynchronous current signals  Excellent Dynamic Range  Single shunt low noise technology

N4L Measurement Technology Traditional Approach N4L Approach

N4L Current Shunt Design

Field Cancellation

Calibration

ADI40 – Analogue Digital Interface  Multi-Channel DC output Analogue<>Digital Data Logger with Multiple Analogue Output

ADI40

Example Configuration

ADI40 - Specification

Frequency Response Analyzers PSM1700/PSM1730 Up to 100V 10uHz to 35MHz SMPS Development Filter Design Feedback Loop Analysis PSM3750 Up to 500V 10uHz to 50MHz High Voltage SMPS Development Isolated Generator Filter Design Feedback Loop Analysis

PSMComm2 FRA/LCR Software

Impedance Analyzers PSM3750+IAI Impedance Analyzer Component Testing Automated Test Systems Material Analysis Piezo Analysis EIS (Electro Chemical Impedance Spectroscopy) Cable Impedance Analysis Fruit/Vegetable Quality Testing Dielectric Analysis 10uHz ~ 35MHz

EIS and LCR Mode : Nyquist Presentation (Linear/Log also available) Piezo Analysis PSM3750+IAI+PSMComm2 Piezo characterisations and analysis Equivalent Circuit modelling 10Hz~50MHz Nyquist representation

Electrochemical Impedance Spectroscopy

Sweep Frequency Response Analyzers (Power Transformer Analysis) SFRA45 Model Compact Portable Instrument Battery Powered Bespoke Cable reel (3x18m BNC) Bespoke Bushing Clamps Earthing Braids Travel Case Long Battery Life SFRAComm Software Package Automated “GO-NOGO” analytics Database function

SFRA45

SFRAComm

SLM3505 – Selective Level Meter SLM3505 – Power Line Carrier Communications [PLCC] Utilities Power Industry Government Units Supplied Worldwide dBm dBu dBv dB VSWR Impedance FRA (dB, phase) Oscilloscope 3Hr Battery Life Hand Held Generator + Receiver in Single Chassis

Selective Level Meter Accessories Custom Lead Set Directional Coupler Flight Case BAL01 – Balanced Output Accessory

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