April, 2013: Power analysers measure all aspects of power and power quality. Earlier, a power meter could only display electric data numerically. Since the arrival of new kinds of electrical equipment in the market, power meters now offer a slew of functions. Today, power analysers are more than just measuring instruments. They allow a wide measurement bandwidth and high precision multi-channel and synchronised measurements, while featuring current waveform displays, analysis functions and environment-friendly designs. Here are the latest power analysers launched in 2012-13
Model: N7747A and N7748A, Brand: Agilent, Manufacturer: Agilent Technologies, USA
Launched in March 2013, N7747A and N7748A are optical power meters that enable engineers to make parallel multiport measurements, and monitor weak signals and small signal changes with high precision. The meters can detect power levels down to -110 dBm and log data at intervals down to 25 µs with up to 1 million points per channel.
Key features
(1)Eight power meter channels fit in a single 48.26 cm rack-height unit
(2)Each channel has a front panel BNC connector delivering analogue output voltage proportional to the measured signal
(3)Computer interfaces are provided for USB 2.0, LAN and GPIB
(4)High sensitivity, low noise, solid stability and high relative accuracy; 81634B modules
Contact details: Ph: 1800-11-2929 (toll free); www.agilent.com
India office: Agilent Technologies Pvt Ltd
___________________________________________________________________________________
Model: MPQ 3033, Brand: Motwane, Manufacturer: The Motwane, Manufacturing Company Pvt Ltd, India
Launched in February 2013, MPQ 3033 offers a compact, easy to operate and affordable power quality analysis instrument, suited to measure the power quality anomalies. The harmonics of current and voltage are measured in three different parameters up to the 50th order, and the imbalances of voltage and current are displayed in numerical as well as in vector form.
Key features
(1)Records data of different power parameters for 960 hours with selectable time intervals
(2)Measures inrush current up to 2000 A
(3)Comes with a portable design and touchscreen with phase colour code
(4)Voltage range of up to 700V and current range of up to 3000A AC
(5)Comes with an inbuilt memory of 128 MB
(6)High sampling speed of 25k/second
Contact details: Prashant Das, GM, Sales and Marketing; Ph: +91-253-2463752/53; [email protected], www.motwane.com
___________________________________________________________________________________
Model: Nvis 7070A, Brand: Nvis, Manufacturer: Nvis Technologies Pvt Ltd, India
Launched in January 2013, Nvis 7070A provides a complete solution for electrical parameter measurements. It has a 2.4 GHz wireless interface for PC connectivity and is equipped with AC and DC measurement facilities. It is also provided with a sensor interface port for torque and speed sensing.
Key features
(1)AC and DC measurement facility in a single instrument
(2)Microcontroller based accurate and reliable design
(3)Wireless connectivity at 2.4GHz for monitoring parameters on a computer
(4)CTs and PTs are used for parameter monitoring
(5)Frequency: 45-55 Hz, speed: up to 2500 RPM
Contact details: Yatindra Upadhyay, manager, marketing; Ph: 0731-4211500; [email protected], www.nvistech.com
___________________________________________________________________________________
Model: WT300 series, Brand: Yokogawa, Manufacturer: Yokogawa Electric Corporation, Japan
Launched in January 2013, WT300 series is the latest addition to a range of digital power meters. This is the fifth generation of this high performance, low cost product group. It offers updated and innovative measurement functions. It is the ideal measurement solution for stand-by-power measurements, energy star and IEC62301 testing.
Key features
(1)Basic accuracy: 0.1 per cent of the reading
(2)DC measurement: 0.5 Hz to 100 kHz frequency range
(3)Standard USB, and GPIB or RS232 interfaces
(4)Low current measurements down to 50 micro-Amps (WT310 only)
(5)High current measurements up to 40 Amps RMS (WT310HC only)
(6)High-speed data update (up to 10 readings per second)
(7)Simultaneous normal and harmonic measurements
(8)Optional Ethernet interface
(4)WTViewerFreePlus software included
Contact details: Ph: 1-800-888-6400; [email protected], www.yokogawa.com
India office: Yokogawa India Ltd
___________________________________________________________________________________
Model: PHA-5850 A/B/C/D, Brand: Meco, Manufacturer: Meco Instruments Pvt Ltd, India
Upgraded in 2012, PHA 5850 is a state-of-art versatile instrument using microcontroller technology. It is ideal to carry out vigilance checks, surveys, audits and periodic visits. It can be used to take measurements on live loads. It can do the analysis for 1 and 3-phase quality power systems. It has a large dot matrix LCD display with a backlight. It has an inbuilt memory of 512K for 17,000 records and optical isolated RS-232. It also comes with a USB interface with user friendly software, and the facility to retrieve power data and harmonics on meter screen at site.
Key features
(1)Ideal to carry out surveys, audits and during periodic visits to check industrial sites and other installations
(2)CTR and PTR programmable
(3)Inbuilt memory of 512K for 17000 records
(4)Optical isolated RS-232 ~ USB interface
(5)Displays harmonics up to the 99th order, THD with waveform and peak value
Contact details: Haren Shah, senior marketing executive; Ph: 09820093232; [email protected], [email protected], www.mecoinst.com
___________________________________________________________________________________
Model: MS 2205, Brand: Mastech Manufacturer: Precision Mastech Enterprises Corporation, Taiwan
Launched in December 2012, MS 2205 is a harmonic power clamp meter that measures voltage, current, peak voltage/current, effective/reactive/apparent power (single-phase), power factor, reactivity, phase angle, frequency, phase detection (3-phase), voltage/current harmonic levels (up to 20th) and total harmonic distortion (THD-F and THD-R). Its TRMS value can enforce the accuracy of measuring the non-sinusoidal waveforms or distorted waveforms.
Key features
(1)Phase detection: Normal/reverse/missing (at 3-phase balanced load)
(2)Record: max value and min value (effective in the voltage, current and effective/apparent power functions)
(3)Data storage: Can store up to 100 measuring values in memory, and download them to PCs via an RS-232 interface
(4)Low-battery indicator
(5)Data hold
(6)Auto power-off
(7)PC-link: RS-232C interface by optical insulating coupler
Contact details: Ph: +886-2-2521-7079; [email protected], www.p-mastech.com
Indian distributor: Metro Electronic Products
___________________________________________________________________________________
Electronics Bazaar, South Asia’s No.1 Electronics B2B magazine
