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Programmable Power Sources AC+DC 3kVA ~ 67kVA | N4A

Programmable Power Sources - Overview

The N4A range of Programmable AC Power Sources offers complete flexibility for a wide range of applications. All N4A sources feature dual-channel arbitrary waveform generators utilising direct digital synthesis, providing the user with simultaneous multiple harmonic generations, frequency sweeping, and long sequencing capabilities. The metrology of the arbitrary generator permits long custom waveform sequences to be produced without a reduction in the resolution of each waveform. The N4A AC Source also features a 10-bit vertical resolution and a maximum waveform resolution of 16,384 points to produce a single periodic waveform. There is also an internal storage function for imported custom waveforms featuring user-intuitive library menus that display the waveform graphically on the display.

The N4A AC power sources feature an extremely flexible waveform generator capable of mathematical waveform generation, data point waveform upload, and many sequencing functions. Traditionally, switching topologies have struggled to provide total harmonic distortion (THD) figures below 2%. The N4A “6-legged topology” provides less than 0.3% THD and typically 0.1%, the N4A range of AC Power Sources should be considered the best value power generator on the market. Ranging from the N4A06 6kVA model (300Vrms, 20A) to the N4A67 67kVA model (67kVA, 75A /phase) – the N4A will suit a wide range of applications including;
- Aerospace
- Renewable Energy
- Compliant to IEC61000-3-2/12 and IEC61000-3-3/11 Harmonics and Flicker Testing
- Compliant to IEC61000-4-11 Voltage Dips and Interrupts immunity test standard
- IEC61000-4-13 harmonic and inter-harmonic susceptibility test standard
- PWM Inverter Drive Development
- Automotive
- Standby Power
- Battery Development
Programmable Power Sources -Features
- Low THD <0.3% (0.1% typical)
- DC+AC Output - DC-1kHz (10kHz small signal bandwidth)
- Single Phase and 3 Phase systems available
- EMC Compliance - IEC61000-3-2/3/11/12, IEC61000-4-11/13/17/29
- Market Leading Inrush - 2x Continuous Output for 3 seconds
- Fast Switch on Time - Proprietary Design
- Versatile interfaces - RS232, USB, LAN
- Arbitrary Waveform - Custom Arbitrary Waveform, Sequencing and More
- Pre Set Waveforms - Stored in Hardware for Fast Recall
- High Efficiency >80%
- Up to 67kVA 3 Phase Solutions
- Compact Design - High Power Density
Datasheet

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Power Analyser | PPA1500

Power Analyser PPA1500 - Overview

The PPA1500 Power Analyser offers higher performance compared to its sibling – the PPA500 unit. N4L power analysers provide optimum solutions in almost any power measurement application and budget. The PPA1500 offers a 1Mhz Bandwidth and full graphic display, this includes harmonic bar graphs and graphic data logging. It features sophisticated parallel digital filtering algorithms enabling the PPA1500 to be used in various Pulse Width Modulated applications.

While being only half-rack width and 2U high, the PPA1500 is available in 1, 2 or 3-phase configurations and offers a level of performance normally found only in larger and more costly instruments. With modes such as “Inrush Current and “Standby Power”, the PPA1500 provides fast, accurate and easy measurements in challenging environments.

The PPA1500 series analysers now have a 6 Phase 2U Rack option in which two PPA1530 units are installed on the same rack side by side to give the ability to perform 6 Phase 0.1% accurate power measurement whilst only occupying a height of 2U in any rack.

All PPA1500 units are supplied with UKAS ISO17025 certification as standard, this is performed at N4L in the UK in our accredited ISO17025 Laboratory.

Power Analyser PPA1500 - Features
- High contrast full-colour graphic display
- Simple BNC connection of N4L shunts for high-current applications
- RS232, USB, LAN, Extension and Auxiliary ports
- 0.05% Basic accuracy
- Frequency range DC and 10mHz to 1MHz
- High-precision internal shunts – Superior accuracy to any external shunt
- 10 millidegree phase accuracy – Necessary for low power factor applications
- 20 Arms (300 Apk) & 1000 Vrms (2500 Vpk) direct input
- Unique x10 gain mode for Standby Power measurement
- 1MS/s High-speed sampling on all channels
- True real-time analysis with no measurement gap
- 1, 2 or 3 phase versions
https://www.youtube.com/watch?v=AUGd54KrkfE

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High Accuracy 0.01dB 35MHz | PSM1735

High Accuracy 0.01dB 35MHz - Overview

Utilising an innovative design that incorporates both direct digital analysis and heterodyning techniques, the High Accuracy PSM1735 provides a broad range of measurement functions over a wider frequency range than any other instrument available today. Typical applications include switched-mode power supply feedback loop analysis, filter test, and design, LVDT testing, sweep frequency response analysis of wound components, and much more. The PSM1735 NumetriQ utilises the latest DSP and FPGA technology to optimise the use of its analogue hardware providing speed and measurement flexibility without compromising the performance of each measurement function. The N4L PSM1735 features 0.01dB gain accuracy, 0.02° phase accuracy, and a frequency range of up to 35 MHz.

High Accuracy 0.01dB 35MHz - Features
- Frequency range 10µHz to 35MHz
- Floating differential inputs – 10 Vpk
- Gain accuracy at < 1 kHz 0.01 dB
- Phase accuracy at < 1 kHz 0.01°
- Frequency response analyzer
- Impedance analyzer
- Vector Volt Meter / Phase Angle Volt Meter
- RMS Volt Meter
- Loop response analysis
- Harmonic analyzer
Datasheet

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Benchtop Power Analyzer up to 8 Phase Analysis | PPA3500

High-Performance PPA3500 up to 8-Phases Power Analysis Overview

The PPA3500 is a high accuracy 3~6 phase power analyzer able to perform reliable, accurate power analysis in a variety of applications. DUT to innovative analogue card design, the PPA3500 is packaged in a compact 2U chassis. The PPA3500 is available in 3, 4, 5 or 6-phase configurations. The PPA3500 power analyzer benefits from a full colour “Dual” TFT display, this concept employs two TFT displays within one instrument, allowing for a large widescreen display area in a 2U form factor. There is also the option to install the unit in a 19"| rack providing a 2U 6 Phase solution, see accessories for more details.

Proprietary Technology featuring the industry-renowned planar shunt technology (A shunt design topology developed by N4L) and FPGA based real-time no-gap analysis techniques, the PPA3500 is able to provide groundbreaking 6-phase analysis performance. Real-Time no gap analysis ensures efficiency measurements are entirely synchronized between input and output.

All PPA3500 units are supplied with UKAS ISO17025 certification as standard, this is performed at N4L in the UK in our accredited ISO17025 Laboratory.

6 phase Power Analyzer Features
- Designed specifically for inverter drive applications
- Excellent Accuracy 0.03%
- Wide Bandwidth ideal for distorted signal analysis such as PWM Inverter drives
- 1MHz Bandwidth
- Torque and Speed inputs fitted as standard +/- 10V, Analogue DC and Pulsed Inputs
- Extremely high accuracy phase measurement of 0.01deg
- Real-time monitoring and efficiency calculation of Electrical to Electrical and Electrical to Mechanical
- ISO17025 (UKAS) traceable certification supplied
- 8 Phase Analysis Use 3P2W + CH3 + 3P2W + CH3 to measure 8 phases including 3 Phase Input Power, DC Bus and 3 Phase Output Power
- Low profile – 2U High, up to 6 Phase measurement
- DFT Based Power Calculation Utilize the Power of DFT Fourier analysis, made possible using top-of-the-range DSPs and FPGAs
- PWM Motor drive mode for quick easy setup
https://www.youtube.com/watch?v=ntKljPrXvYM

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Transformer Edition Power Analyzer | PPA5500-TE

Transformer Edition Power Analyzer - Overview

The PPA5500-TE provides unrivalled measurement integrity, reliability and accuracy. Each and every PPA5500-TE is rigorously tested within N4L’s ISO17025 Accredited Power Laboratory in which specialised power calibration from 40Hz to 450Hz is performed alongside N4L’s well-documented wideband calibration, up to 2MHz. The PPA5500-TE is compliant to IEC60076-8 and provides a 3-year warranty as well as a 2-year calibration interval. Power Transformer loss analysis becomes challenging when the transformer is off-load (for example whilst performing core loss analysis), this test condition requires the power analyzer to exhibit exceptional phase angle accuracy and repeatability. The PPA5500-TE provides market-leading low power factor analysis, supplied with UKAS ISO17025 certification.

Transformer Edition Power Analyzer - Features
- 0.07% Nominal Power Accuracy
- 0.55% Power Accuracy at PF=0.01
- 0.003° Phase accuracy
- Widest Voltage, Current and Frequency range in the market
- Unrivalled Performance, Unquestionable Traceability
Datasheet

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4
Power Analyzer Compact Three Phase – PPA500

Power Analyzer Compact Three Phase - Overview

The PPA500 is a high-performance power analyser at a low cost. Primarily aimed toward applications that require precision measurement without complex features, the PPA500 series is ideally suited to a production or test environment. This power analyser achieves a level of performance previously available only in costly instruments while maintaining the intuitive operation and clarity of measurement presentation for which the PPA series has become renowned. The unit benefits from a full-colour TFT display that provides great flexibility and combines performance, ease of use and value. While being only half-rack width and 2U high, the PPA500 is available in 1, 2 or 3 phase configurations. Features such as the planar shunt (A shunt design topology developed by N4L) and FPGA based real-time no gap analysis techniques all contribute to the PPA500’s fantastic offering. The low cost of the PPA500 Power Analyser presents a great opportunity for system integrators looking for accurate, traceable, reliable power analysis.

Power Analyzer Compact Three Phase - Features
- 0.05% Basic accuracy (Traceable to ISO17025)
- Frequency range DC and 10mHz to 500kHz
- High precision internal shunts Superior accuracy to any external shunt
- 10 milli degree phase accuracy – Necessary for low power factor applications
- 20 Arms (300 Apk) & 1000 Vrms (2500 Vpk) direct input
- Unique x10 gain mode for Standby Power measurement
- High-speed sampling on all channels
- True real-time analysis with no measurement gap
- 1, 2 or 3 phase versions
- High contrast full-colour graphic display
- Simple BNC connection of N4L shunts for high current applications
- RS232, USB, (LAN Option), Extension and Auxiliary ports
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EPA Zones Insulation Resistance Meter | MIC-2511 EPA

EPA Zones Insulation Resistance Meter - Overview

The Epa Zones Insulation Resistance Meter measures insulation resistance up to 2 TΩ / 2500V. It has robust casing with IP65 protection level. It has low battery power consumption and can be recharged during measurements. The meter is both reliable and versatile. It is ideal for checking industrial installations, catenary networks, and residential buildings. Sought after by electricians working in maintenance, testing motors, cables and street lighting. It is also useful for measurements during construction and maintenance of photovoltaic installations. It is a reliable solution created for the needs of telecommunications network installers and heating network operators, facilitating the control of the alarm system of pre-insulated pipes.

EPA Zones Insulation Resistance Meter - Features
Measurement of leakage current during measurement of R_ISO

Capacitance measurement during measurement of R_ISO

Low-voltage measurement of circuit continuity and resistance

Temperature measurement (with the use of the optional ST-1 temperature probe)

Measurement of direct and alternating voltages within the range of 0...1500 V

9999-entry memory, data transmission to PC via USB cable

Power supplied by rechargeable battery

Backlit keyboard

The instrument meets the requirements laid down by standard EN IEC 61557

Measurement voltage within the range of 10…2500 V

Insulation resistance measurements with a voltage of 10 V of the supervisory loop of fire alarm systems

Testing surge protecting devices (SPD)

Charts plotted on display during measurements

Measurements in electrostatic protected areas (EPA)

Correction of insulation resistance result to reference temperature

Continuous reading of measured insulation resistance or leakage current

Automatic discharge of the measured object’s capacitance upon completion of insulation resistance measurement

Sound signaling of five-second time intervals

Timing of measurement times T₁, T₂ and T₃ for measurement of one or two absorption coefficients (Ab1, Ab2 or DAR, PI) within the range of 1… 600 s

Automatic measurement of all resistance combinations of 3-, 4- and 5-core cords and power cords by means of the optional AutoISO-2511 adapter

Reading of actual measurement voltage during measurement

Measurement current <2 mA

Protection against measurement of live objects

Two- or three-lead method of insulation resistance measurement
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Winding Single Phase Resistance Meters | RMO-TT

Winding Single Phase Resistance Meters - Overview

The RMO-TT series is designed for winding resistance measurement of inductive objects. It uses advanced switch-mode technology. It is an accurate (0,1% rdg + 0,1% F.S.), and powerful portable instrument (up to 100 A). It generates a true DC ripple-free current with automatically regulated measurement and discharging circuit. It can perform simple, quick and reliable transformer on-load tap changer condition assessments. This series enables measurements of a winding resistance in every tap position, current ripple values and transition times during the tap changes. Problems with the connection, contacts, and selector/diverter switch operation can be detected with these measurements. It is equipped with thermal and overcurrent protection. It has the ability to cancel electrostatic and electromagnetic interference that exists in HV electric fields. This is achieved by a proprietary filtration solution applied to both the hardware construction and the application software implementation. Applications include: winding resistance measurement of inductive test objects; dynamic resistance measurement (DVtest) of on-load tap changers; measurement of on-load tap changer motor current by using a dedicated channel; heat run test, which enables obtaining the Hot Spot temperature along with resistance graph during the cooling process 1; and single-phase automatic transformer demagnetisation.

Winding Single Phase Resistance Meters - Features
- On-load tap changer dynamic resistance measurement
- Three resistance measurement channels
- Four temperature measurement channels
- Vibration measurement channel
- Tap changer motor current monitoring channel
- Automatic measurement for the Heat Run test
- Rapid automatic demagnetisation
- Automatic discharge circuit
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Precision Power Analyzer | PPA5500

Precision Power Analyzer - Overview

The PPA5500 Power Analyzer is a compact, cost-effective, leading power measurement performance instrument. It has exceptional accuracy and stability in the most demanding of power applications. The Power Analyzer 5500 series extends the power analysis range for those who require the ultimate power analysis product.

The PPA5500 adds increased voltage and current measurement ranges, greater processing power, increased memory, a real-time clock, high contrast visible colour display, 1GB non-volatile internal memory, external USB memory port, wide frequency range and exceptional noise rejection. A 2MS/s sample rate, alongside “True Real-Time” no gap analysis is a formidable combination for power analysis. The analogue front-end design includes the proprietary "Planar shunt technology". This instrument provides exceptional measurement stability and accuracy. The phase angle accuracy of the PPA5500 is 0.005 degrees which are perfect for transformer loss analysis testing at very low power factors.

Precision Power Analyzer - Features
- 0.01% Basic accuracy
- Frequency range DC and 10mHz to 2MHz
- High precision internal shunts Superior accuracy to any external shunt
- 5 millidegree phase accuracy necessary for low power factor applications
- Up to 50 Arms (1000 Apk) & 1000 Vrms (3000 Vpk) direct input
- Low current (10Arms), Standard (30Arms), and High current (50Arms) options
- High-speed sampling on all channels
- True real-time analysis with no measurement gap
- 1, 2, or 3 phase versions master-slave mode for 4, 5, or 6 phase
- Real-time Digital, Tabular, Graphic, and Oscilloscope displays
- Simple BNC connection of N4L shunts for high-current applications
- RS232, IEEE 488, USB, LAN, Torque, Speed and Extension ports
https://www.youtube.com/watch?v=ntKljPrXvYM

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Tool and Appliance Safety Tester | D255

Tool and Appliance Safety Tester - Overview

The D255 provides industry-standard appliance test solutions for the Equipment Hire and Service / Repair Industries. The D255 brings an improved user experience by giving a large, clear indication of the measured values and providing more accurate readings. With only one single value displayed for the test being performed the D255 will ensure the correct logging of the test results every time. Perfect for the workshop environments with the ability to perform testing of Class I and Class II products in accordance with the HAE EHA Code of Practice for Electrical Safety Testing in the Hire Industry, and international standards, including BS EN 60335 and BS EN 62841.

Tool and Appliance Safety Tester - Features
- Clear & accurate digital readout of test measurements
- Measurement hold of result at end of test for convenience
- Provides a full suite of electrical safety tests including earth/ground bond, hipot/flash testing, load/run and leakage testing
- Visual Alarm
- Audible Alarm
- Digital Display
- Accurate Readings (Earth/Power/Leakage)
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Compact Clamp Meter | CMP-401

Compact Clamp Meter - Overview

The Compact Clamp Meter is a surprisingly versatile tool. It is used for direct AC and DC current measurements up to 400 A. The additional functions of the device include the measurement of direct and alternating voltages up to 600 V (with the use of test leads), resistance measurement, continuity of connections measurement with acoustic signalling, capacity measurement and temperature measurement with the use of a probe which is included in the basic equipment of the device.

Compact Clamp Meter - Features
AC current measurement up to 400 A

DC current measurement up to 400 A

DC and AC voltage measurements up to 600 V

Resistance measurement

Continuity test with acoustic signalling (beeper) for resistance below 50 Ω

Temperature measurement (Fahrenheit or Celsius)

Frequency measurement

Capacitance measurement

Diode test
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Turns Ratio Tester | TRT Advanced Series

Turns Ratio Tester - Overview

TRT advanced series are true three-phase, fully automatic test devices specially designed for turns ratio, phase shift, and excitation current measurements of power, distribution, and instrument transformers. It determines the transformer turns ratio by applying voltages across high-voltage windings, accurately measuring voltages across the unloaded transformer windings, and then displaying the ratio of these voltages. The test set can be used to test single-phase and three-phase transformers, both with and without taps in accordance with the requirements of the IEC 60076-1 standard. It has a very high ability to cancel electrostatic and electromagnetic interference in HV electric fields.

Turns Ratio Tester - Features
- Automatic vector group detection
- Built-in tap changer control unit
- Interchangeable test leads with Three-phase Winding Ohmmeters & Tap Changer Analysers TWA Series
- Single-phase test voltages up to 500 V AC
- True three-phase test voltages up to 3x290√3V AC
- Up to 5 kV AC with additional CVT20 for testing capacitive voltage transformers
- The best turns ratio accuracy of 0.03% • Large 10.1” or 7” graphical touch screen display
https://www.youtube.com/watch?v=V8ktNqs6SPE

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Impedance Analysis Package 10uHz ~ 35MHz | IAI + PSM1700

Impedance Analysis Package - Overview

The Impedance Analysis Interface is an optional measurement interface intended to be used with the PSM1700 and PSM1735 to form a high-accuracy Impedance Analyser. The IAI provides all of the functionality of the LCR Active Head but with a wider frequency and impedance measurement range plus higher nominal accuracy. This is achieved by a more sophisticated design that includes an additional internal shunt range, a current amplifier to increase low impedance signal levels and calibration together with the PSM1700/PSM1735 with which it will be used. Applications include passive component analysis and detailed wideband characterisation (capacitors, inductors and resistors), material analysis (corrosion, surface finish analysis etc), electrochemical impedance analysis (battery/cell as well as general electrochemistry), biomedical applications, cable impedance measurements and Input/Output Impedance Measurement of Sub Circuits.

Impedance Analysis Package - Features
- Wide Frequency Range
- Wide Impedance Range
- High phase accuracy
- Excellent Impedance accuracy
- Ability to control remotely
- Highly selective DFT analysis
- Flexible features
- Full graphical display
- Automatic range switching
- 4-wire Kelvin Connections
- DC to 35MHz frequency range
- Signal level: ±10V peak max.
- Shunts: 5Ω, 50Ω, 5kΩ, 500kΩ
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Winding Resistance Meters Single Phase with DRM | RMO-TD Series

Winding Resistance Meters Single Phase with DRM - Overview

The RMO-TD series is designed for winding resistance measurement of inductive objects. It is based on the most advanced switch-mode technology available today. It is accurate (0,1% rdg + 0,1% F.S.), and powerful (up to 60 A). It generates a true DC ripple-free current with automatically regulated measurement and discharging circuit. It can perform simple, quick and reliable transformer on-load tap changer condition assessments. This series enables measurements of a winding resistance in every tap position, current ripple values and transition times during the tap changes. Problems with the connection, contacts, and selector/diverter switch operation can be detected with these measurements. It is equipped with thermal and overcurrent protection. It has a high ability to cancel electrostatic and electromagnetic interference that exists in HV electric fields. This is achieved by a proprietary filtration solution applied to both the hardware construction and the application software implementation.

Winding Resistance Meters Single Phase with DRM - Features
- On-load tap changer (OLTC) dynamic resistance measurement DVtest
- Three measurement channels
- One temperature measurement channel
- Tap changer motor current monitoring channel
- Built-in tap changer control unit
- Automatic resistance measurement for the Heat Run test
- Rapid automatic demagnetisation
- Automatic discharge circuit
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Handheld Winding Ohm Meter | RMO-TH Series

Handheld Winding Ohm Meter - Overview

The handheld winding ohm meter device is a DV Power single-phase instrument specially designed for measuring transformer winding resistance and performing transformer demagnetisation. Winding resistance is determined by injecting DC current through a winding, accurately measuring DC voltage across the winding, and then calculating resistance as the ratio of voltage and current. The device generates true DC ripple-free currents. Both the injection of the current and the discharge of energy from the transformer magnetic circuit are automatically regulated. The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output a maximum of 2 A DC and is designed for injecting current into the transformer’s high-voltage winding. The second DC source can output a maximum of 10 A DC and is designed for testing the transformer’s low-voltage winding. Having two separate DC sources is especially useful when measuring the winding resistance of distribution transformers. These transformers have a large turns ratio. Because of that, the difference between resistances of high voltage and low voltage windings is very big. This requires different levels of test currents for high-voltage and low-voltage windings. Applications include: winding resistance measurement of distribution and instrument transformers, motors, and generators, and demagnetisation of distribution and instrument transformers, motors, and generators.

Handheld Winding Ohm Meter - Features
- Two Output DC Sources
- Memory
- DV-TR Software
- Internal Li-Ion battery
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