N4L功率分析儀 - 1?6相 - DC＆10mHz?2MHz

功率分析儀產(chǎn)品選擇器

快速比較完整的功率分析儀范圍

低成本 - PPA500
N 4 L P P A 500 2 U高緊湊型功率分析儀
緊湊型 - PPA1500
N 4 L P P A 1500 2 U高功率緊湊型分析儀
1?6相分析 - PPA3500
N4L P P A 3500 2 U高1至3相精密功率分析儀
高性能 - PPA4500
N4L P P A 4500 3U高1至3相精密功率分析儀
 
基本精度
V，A*.05％0.05％0.04％0.03％0.01％
功率rdg錯(cuò)誤0.1％0.1％0.06％0.04％0.02％
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N4L功率分析儀系列采用 苛刻的應(yīng)用中提供快速，準(zhǔn)確和可重復(fù)的測(cè)量。無(wú)論您需要測(cè)量變速電機(jī)驅(qū)動(dòng)器的效率還是變壓器中的損耗，N4L都可為您提供功率分析儀測(cè)量解決方案。結(jié)合多年高頻測(cè)量?jī)x器的經(jīng)驗(yàn)以及模擬和數(shù)字設(shè)計(jì)技術(shù)的創(chuàng)新發(fā)展，生產(chǎn)出新一代*的精密功率分析儀。 N4L的所有功率分析儀都具有實(shí)時(shí)無(wú)間隙分析和高采樣率的特點(diǎn)。所有功率分析儀均配有UKAS ISO17025校準(zhǔn)證書(shū)，由我們的UKAS實(shí)驗(yàn)室（校準(zhǔn)實(shí)驗(yàn)室No.7949）頒發(fā)。

什么是功率分析儀？

一種功率分析器是精密測(cè)試儀器做了措施的裝置，電路或子系統(tǒng)的功率消耗或產(chǎn)生（以瓦特為單位）。因此現(xiàn)代電力分析儀能夠確定礦功率因數(shù)，諧波失真，峰值，平均值和許多參數(shù)的信號(hào)。

功率分析儀對(duì)被測(cè)器件（DUT）進(jìn)行采樣和退出，這種采樣過(guò)程通常每0.5毫秒至1毫秒發(fā)生一次，具體取決于所使用的分析器型號(hào)，來(lái)自其他制造商的一些較低規(guī)格型號(hào)為100ks / s。一旦采樣，數(shù)據(jù)就由高速數(shù)字信號(hào)處理器（也可以在現(xiàn)代FPGA上實(shí)現(xiàn)）處理，并計(jì)算各種派生參數(shù)。

示波器/數(shù)據(jù)采集卡和真正的功率分析儀之間的一個(gè)重要區(qū)別是做一個(gè)功率分析儀（：如N4L PPA）是能夠記錄，存儲(chǔ)，處理和“即時(shí)”刪除樣本。這意味著抽樣過(guò)程中永遠(yuǎn)不會(huì)有差距。這是不常見(jiàn)的，但對(duì)于準(zhǔn)確的功率測(cè)量必要。

ppa5500功率分析儀采樣圖
高性能功率分析儀信號(hào)鏈
N4L的高精度功率測(cè)量信號(hào)鏈

N4L的高精度信號(hào)鏈

N4L功率分析儀能夠以全分辨率在整個(gè)隔離屏障上傳輸原始采樣點(diǎn)。傳統(tǒng)功率分析儀不會(huì)傳輸這種“高速”數(shù)據(jù)，因?yàn)楦綦x階段代表了瓶頸，因此其他分析儀在數(shù)據(jù)傳輸?shù)街鰿PU卡之前執(zhí)行計(jì)算。

FPGA和DSP可以跨相位執(zhí)行相間并行信號(hào)處理。 DFT對(duì)原始數(shù)據(jù)樣本執(zhí)行。 PPA5500-TE的標(biāo)稱(chēng)相位精度為0.003º。的頻率檢測(cè)DSP連續(xù)跟蹤輸入頻率，并能夠并行濾波輸入信號(hào)。這在分析PWM型波形時(shí)很有用，在任何情況下，并行濾波處理都不會(huì)影響原始數(shù)據(jù)。

我們的專(zhuān)有功率分析儀技術(shù)為您提供 精度

是什么讓N4L功率分析儀與我們的競(jìng)爭(zhēng)對(duì)手不同？

市場(chǎng)上有許多功率分析儀選項(xiàng)。每個(gè)制造商都將以清晰簡(jiǎn)潔的方式作出決定。因此，我們開(kāi)發(fā)了各種應(yīng)用模式和復(fù)雜的功率測(cè)量算法，這些算法在動(dòng)態(tài)變化的環(huán)境中是證明理由的關(guān)鍵。值得注意的是，使用正弦參考波形在校準(zhǔn)環(huán)境中進(jìn)行精確讀數(shù)要比失真更容易，例如動(dòng)態(tài)改變電機(jī)驅(qū)動(dòng)或LED功率測(cè)量應(yīng)用。

N4L Power Analyzer’s – 1~6 Phase – DC & 10mHz~2MHz

Power Analyzer Product Selector

Quick Comparison of Complete Power Analyzer Range

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The N4L Power Analyzer range utilizes the latest signal processing technology. Providing fast, accurate and repeatable measurements in the most demanding of applications. Whether you need to measure the efficiency of a variable speed motor drive or the losses in a transformer, N4L have a power analyzer measurement solution for you. Combining years of experience in high frequency measurement instrumentation with innovative developments in analog and digital design techniques to produce a new generation of class leading precision power analyzer. All Power Analyzers from N4L feature real-time no gap analysis as well as high sampling rates throughout all fundamental frequencies facilitating wide band gapless measurements on any input waveform. All Power Analyzers are provided with a UKAS ISO17025 calibration certificate, issued by our internal UKAS Laboratory (Calibration Laboratory No. 7949).

What is a Power Analyzer?

A Power Analyzer is a precision test instrument that measures the power consumption or generation (in Watts) of a device, circuit or sub system. Modern Power Analyzers are also able to determine the power factor, harmonic distortion, peak, mean and many more parameters of a signal.

A Power Analyzer samples the voltage and current wave forms entering or exiting a device under test(DUT), this sampling process typically occurs every 0.5us to 1us depending upon the analyzer model being used, some lower specification models from other manufacturers may sample as low as 100ks/s. Once sampled, the data is processed by a dedicated high speed digital signal processor (which can also be implemented on modern FPGAs) and the various derived parameters are calculated.

One important difference between oscilloscopes/data acquisition cards and true power analyzers is that a high end power analyzer (such as an N4L PPA) is able to record, store, process and delete samples “on the fly”. This means there is never a gap in the sampling process as the memory buffer is continually emptied after the samples are processed . This is uncommon and yet absoluy necessary for accurate power measurements.

N4L’s High Precision Power Measurement Signal Chain

N4L’s High Precision Signal Chain

N4L Power Analyzers are able to transfer raw sample points at full resolution across the isolation barrier. Traditional power analyzers do not transfer this “high speed” data as the isolation stage represents a bottleneck, other analyzers therefore perform computations prior to data transfer to the main CPU card.

The benefit of transferring raw data samples across the isolation barrier means that the FPGA and DSP can perform inter-phase parallel signal processing across phases. The result is exceptional phase accuracy through the implementation of a real time DFT performed upon the raw data samples. The nominal phase accuracy of the PPA5500-TE is 0.003º. A dedicated frequency detection DSP continuously tracks the input frequency and is capable of parallel filtering the input signal. This is beneficial if PWM type wave forms are to be analyzed, in all cases the parallel filtering process does not affect the raw data used to calculate the measured parameters, it only applies a filters to the data used for frequency detection.

Our Proprietary Power Analyzer Technology Provides You Ultimate Precision

What makes N4L power analyzers different to our competitors?

There are many power analyzer options on the market offering varying degrees of accuracy, yet at the top end of metrology you can narrow down your options to only a handful of manufacturers. Each manufacturer will profess that their solution is the best for one reason or another, at N4L we refer to hard facts and traceable data giving our customers clear, concise and useful metrics to make a decision. We have also developed various application modes and sophisticated power measurement algorithms that are key to achieving accurate measurements within dynamically changing environments. It is worth noting that it is a lot easier to achieve accurate measurements within a calibration environment using sinusoidal reference wave forms than it is within a distorted, dynamically changing motor drive or LED power measurement application for example. With this in mind N4L, alongside Oxford University (UK) have developed a 2MHz ISO17025 accredited watts calibrator based upon calorimetric principles utilizing a unique liquid heat transfer medium to enable rapid calibration of a test device. This research has given us a world leading watts reference up to 2MHz in frequency and highlights our philosophy of designing products that perform as well in real applications as they do on a calibration rig. The industry obsession with headline specifications often results in instrument designers neglecting what really matters – accurate measurements within real world environments in the presence of distorted wave forms and wide band power.

Key reasons to choose N4L:

• Best high frequency performance on market – key to achieving accurate power measurements of devices containing high distortion/switching frequencies
• Best Phase accuracy on market – traceable to ISO17025
• Best CMRR (Common mode rejection) on market – Important for floating differential measurements, for example when measurement current upon high common mode potentials
• Only Power analyzer manufacturer to offer power calibration up to 2MHz accredited to ISO17025
• Designed and Manufactured in the UK to ISO9001:2015 quality standards
• Exceptional low power standby measurements compliant to IEC62301
• Compliance to IEC61000-3-2, IEC61000-3-3, IEC61000-3-11 and IEC61000-3-12
• Frequency synchronization range from 10mHz up to 2MHz (PPA5500)

Example Applications

Variable Speed Motor Drive Analysis [PPA3500, PPA4500, PPA5500]

Variable speed motor drives have become the go to technology for motor control in many industries. From industrial automation, utility waste movement, large scale traction drives and now the electrical vehicle market. In particular, variable speed inverter drives pose great challenges to a power analyzer with regards to accurate power measurements and the PPA3500, PPA4500 and PPA5500 have been designed with this in mind.

Key measurements available with N4A PPA’s:

• AC Input to DC Bus power efficiency
• DC Bus to Inverter Output power efficiency
• Electrical to Mechanical efficiency using torque and speed inputs
• Current waveform distortion analysis
• Simultaneous wide-band and Fundamental measurement of electrical parameters
• Connection to high current external sensors such as LEM Zero flux transducers.
• Complete ISO17025 system calibration of signal chain including; PPA, Interface box and External current transducer
• Sophisticated parallel frequency filtering for dedicated frequency tracking DSP, providing rapid frequency tracking during acceleration/deceleration

LED Driver Efficiency Analysis [PPA500, PPA1500, PPA3500, PPA4500, PPA5500]

All N4L PPA series power analyzers are capable of measuring the efficiency and power quality of LED drivers, the PPA range enable the analysis of the following parameters;

• AC Input to DC output power efficiency
• DC Input to DC output power efficiency
• Separate DC content and AC ripple voltage analysis
• Inrush analysis
• PPA3500 – Simultaneous power and integrator/scope analysis
• Very low signal sensitivity
• Fast measurement updates down to 2ms
• High sample rates to ensure wide measurement bandwidth

Why choose N4L Power Analyzers for LED driver analysis?

• All instruments are ISO17025 accredited
• N4L offer fastest update rate in class
• Maximum sampling rate is always maintained, regardless of update rate
• PPA’s are able to separate DC content and AC ripple
• Gapless analysis ensures all data is analyzed
• Extremely stable measurements even at low signal levels

EN50564 + IEC62301 Standby Power Analysis [PPA500, PPA1500, PPA3500, PPA4500, PPA5500]

N4L PPA series power analyzers offer a highly accurate solution to standby power analysis, with custom designed software providing the user with the ability to make quick, simple, compliant measurements with ease. Each N4L Power Analyzer is supplied with UKAS ISO17025 accreditation, providing the user with ultimate confidence that the measurement made is correct and traceable.

Standby Power Measurement Overview;

• ISO17025 traceable measurements
• EN50564 + IEC62301 compliant
• AC Sources also available from N4L
• Start, Stop + Reporting function from custom designed software package – supplied free of charge with every instrument
• Software also analyses AC source for compliance during test
• Cyclic, Non cyclic, varying power and limited duration modes all catered for
• Breakout box available for simple, safe connection

IEC61000 Harmonics and Flicker Analysis [PPA5500, PPA55x1]

The PPA55x1(fully compliant) and PPA5530(pre-compliant) offer IEC61000-3-3, IEC61000-3-2, IEC61000-3-11 and IEC61000-3-12 compliance testing against the latest standards. N4L have developed a comprehensive ISO17025 calibration protocol that is available upon request to cover all aspects of IEC61000 harmonics and flicker. In particular, the d(t) tests performed as part of N4L’s IEC61000 ISO17025(UKAS) calibration protocol are unique to the industry as it is extremely uncommon to find coverage of d(t) tests within an accredited calibration procedure.

Why select N4L PPA55x1 power analyzers for your IEC61000 compliance tests?

• Most comprehensive ISO17025 accredited calibration in industry
• You deal with the manufacturer of the flicker meter/harmonic analyzer directly, rather than a system integrator
• Highly accurate
• AC sources and Impedance networks also available
• AC Source able to be calibrated on site by PPA – no need to ship AC source for calibration
• PPA verifies compliance of AC source during IEC61000 test
• PPA can also be used as a general purpose/development power analyzer in many applications
• PPA accepts up to 50Arms internally, higher currents can be catered for with external current transducers

Transformer loss characterization – IEC60076 [PPA5500-TE]

The N4L PPA5500-TE has been developed specifically for the transformer test and development industry, featuring 0.02% reading + 0.02% range error the PPA5500-TE is a market leader and reference for the transformer test sector. One of the key design features that give the PPA5500-TE’s such a performance advantage is its current shunt design, this proprietary design enables the PPA5500-TE to achieve 0.003deg phase accuracy. No other power analyzer on the market performs as well in this area, which is a key performance parameter for measurement at low power factors – for example during off-load core loss analysis.

PPA5500-TE overview;

• IEC60076-1 compliant
• 0.003deg phase accuracy
• 0.55% watts accuracy at PF = 0.01
• All accuracies accredited to ISO17025
• 3 year warranty
• Highly stable measurement
• Interface to external voltage/current transducers
• Harmonic analysis
• Compatibility with ADI40 temperature/DC sensor interface

Inductance Loss Analysis [PPA4500, PPA5500]

The PPA4500 and PPA5500 feature market leading phase accuracy, as such they are well suited to inductor(choke) loss analysis at both low and high frequencies. Typical power factors during inductor loss analysis are very low, as such great demand is placed upon accurate measurement of the phase shift between voltage and current in order to calculate the correct watts dissipation of the inductor or choke.

• Market leading low power factor performance
• Able to measure extremely low watts values upon a high VA range
• Bandwidth up to 2MHz (PPA5500)
• Excellent dynamic range
• High CMRR(150dB), essential for floating current measurements on top of high frequency noise
• Up to 50Arms internal current measurement range

Solar Inverter Design and Test [PPA500, PPA1500, PPA3500, PPA4500, PPA5500]

Evaluation of solar inverter systems require an instrument to synchronize to both DC waveforms (output of the solar cell) as well as AC waveforms (output of the inverter). This means the analyzer needs at least two independent frequency measurement channels, all PPA’s are capable of such measurements. In addition to this, it is vitally important for the power analyzer to acquire data from each channel synchronously. This ensures that power measurements and subsequent efficiency measurements are made using data that occurs during the same window in time, it is very common for power analyzers to not acquire data synchronously from each channel which leads to incorrect efficiency measurements. All N4L power analyzers can also be used for harmonic analysis of the inverter output waveform in order to verify compliance to relevant standards.

Why choose an N4L analyzer for Solar Inverter Analysis?

• Excellent DC accuracy for solar cell power measurements
• AC+DC coupling, enabling evaluation of both DC and AC content separay
• Harmonic analysis for inverter output distortion compliance
• Synchronous measurement of every input channel, ensuring time aligned power and efficiency measurement
• Fast acquisition options for transient analysis
• Continuous 2Ms/s(PPA5500) high sample rate regardless of window size and update rate
• ISO17025 accredited measurements as standard

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Extended Comparison Table of Complete Power Analyzer Range

 Standard         Option         Not Available

	Low Cost - PPA500	Compact - PPA1500	1~6 Phase Analysis - PPA3500	High Performance - PPA4500	Top of Class - PPA5500
Basic Accuracy
V, A rdg Error	0.05%	0.05%	0.04%	0.03%	0.01%
Power rdg Error	0.1%	0.1%	0.06%	0.04%	0.02%
Phase Options
Internal Shunts	1~3	1~3	1~6	1~3	1~3
Master/Slave	-	-	-	4~6	4~6
Bandwidth
20A & 30A Shunt	DC ~ 500kHz	DC ~ 1MHz	DC~1MHz	DC ~ 2MHz	DC ~ 2MHz
10A & 30A Shunt	-	-	-	DC ~ 2MHz	DC ~ 2MHz
50A Shunt	-	-	-	DC ~ 1MHz	DC ~ 1MHz
Voltage Input
Max Input Voltage	2500Vpk(1000Vrms)	2500Vpk(1000Vrms)	2500Vpk(1000Vrms)	3000Vpk(1000Vrms)	3000Vpk(1000Vrms)
Direct Current Input
10Arms Model	-	-	-
20Arms Model				-	-
30Arms Model
50Arms Model	-	-	-
No. of Ranges	8	8	10	8	9
Features
Scope and Graph Modes	-
USB Memory Port
LAN Port
GPIB Port	-	-
RS232 Port
Real Time Clock
19in Rack Mount Option
Torque and Speed	-	-
IEC61000 Mode (Harmonics and Flicker)	-	-	-	-	Pre Compliance PPA55x1 Full Compliance
Delta -Star & Star-Delta Conversion	-	-		-
PWM Motor Drive Mode	-	(Limited Functionality)
Oscilloscope	-
Transformer Mode	-	-	-
PWM Filter Options	-	2	7	7	7
Speed/Harmonics/Sec Computation	300/sec	300/sec	600/sec	600/sec	1800/sec
Internal Datalogging	4 Parameters	4 Parameters	32 Parameters	16 Parameters	16 Parameters
Datalog Records	16000	16000	5M	5M	10M
ADB0100.1.8 Interharmonic Mode	-	-	-	-
Internal Memory	192kB	192kB	500MB	500MB	1GB
Harmonics	50	50	100	100	417
Minimum Window Size	10ms	2ms	5ms	10ms	2ms
Dimensions Excl. Feet (HxD mm)	92 x 215 x 312	92 x 215 x 312	92 x 404 x 346	130 x 400 x 315	130 x 400 x 315
Weight	3.3 - 4k g	3.3 - 4 kg	5 - 7kg	5.4 - 6kg	5.4 - 6kg

Calibration and Warranty

N4L have developed unique power analyzer calibration rigs in order to provide calibration throughout the entire frequency range of the instruments we supply. This has resulted in calibration procedures which would not be possible when utilizing off the shelf commercially available calibrators. Using traceable calibration equipment combined with N4L proprietary signal generation equipment, every power analyzer is supplied with a comprehensive calibration certificate. Our UKAS 17025 laboratory scope accompanies our high frequency calibration test rigs (utilizing traceable calibration instrumentation) providing total coverage of our power analyzer bandwidth. During 2016, N4L became the first power calibration laboratory to be ISO17025 accredited for calorimetric power calibration up to 2MHz with an uncertainty of <0.3%. This technology has been utilized to validate the design of all N4L Power Analyzers across their entire frequency range with exceptional accuracy.

All N4L power analyzers are supplied with a 3 year warranty, software is free to download from our website and firmware upgrades are also free of charge. Please see our tutorial series which covers an array of applications, including PWM motor drive analysis, AC/DC converters and standby power. To obtain more information on any of our power analyzers, please do not hesitate to contact us

Why not check out our AC Power Sources, these are available from 3kVA up to 67kVA in both single and three phase configuration. Our Programmable AC Power Sources are capable of arbitrary waveform generation and half cycle sequencing events, harmonic and inter-harmonic generation as well as a full signal bandwidth of 1kHz (Small signal 15kHz).

Products in this series

• PPA5500-TE Transformer Edition

  The PPA5500-TE is a specialized Transformer Power Analyzer, compliant to IEC60076-8 and featuring 0.003deg phase accuracy – certified to ISO17025.

   View Product Details

• PPA3500 – 1 ~ 6 Phase Power Analyzer

  

  The PPA3500 is a 2U form factor 1~6 phase precision power analyzer designed specifically for inverter drive applications.

   View Product Details

• PPA500 – Compact Power Analysis

  PPA500 Power Analyzer: Affordable compact precision power analyzer range

   View Product Details

• PPA1500 – Compact Power Analyzer

  PPA1500 Power Analyzer: High performance compact power analysis

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• PPA4500 – Precision Power Analyzer

  The PPA4500 Power analyser features an excellent phase accuracy of 0.005 deg, an absolute necessity for low power factor transformer loss analysis.

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• PPA5500 – Precision Power Analyzer

  PPA5500 Power Analyzer: Class leading accuracy, speed and flexibility

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• PPA55x1 IEC61000 Harmonics and Flicker Analyzer (IEC61000-3-2/3-3 & IEC61000-3-11/3-12)

  PPA55x1: IEC61000-3-2, IEC61000-3-3, IEC61000-3-11 and IEC61000-3-12 Compliant Harmonics and Flicker Analyzer.

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• PPA2600 – Discontinued Mar 2014 (See PPA4500 Model for Replacement)

  PPA2600 Power Analyzer: Rack mounted Power Analyzer offering up to 50Arms

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• PPA2500 – Discontinued Mar 2014 (See PPA4500 Model for Replacement)

  PPA2500 Power Analyzer: versatile and cost effective solution to many power measurement applications

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