Go to HomePage ELECTRONIC-INFO.EU
QRcode

Precise and price-convenient measuring of AC current

Precise

With current transformers, you can measure AC current simply and with a sufficient accuracy, moreover with maintaining of a high safety level thanks to a galvanic isolation.

General purpose AC current measurment, overload and shortcut protection, load drop or shutdown detection and similar application require simple and reliable solution. Current transformers meet all these requirements and they add further bonuses like galvanic isolation, no intervention to a measured circuit and a convenient price.

Advantages / Features:

  1. simple measuring with a galvanic isolation
  2. high sensitivity
  3. no influence to a measured circuit
  4. long lifetime
  5. severe condition resistant
  6. price-convenient solution

As we know, one of AC current measurement methods is based on the usage of a current transformer. Alternating magnetic field around a wire lead, which in a continual proportion to a current flowing through a wire, will induce an AC voltage in a measurement transformer. At a suitable construction and a right transformer loading, is the output voltage in a continual proportion to a current in a measured lead. Perhaps the biggest advantage of this method is the fact, that a measuring circuit is galvanically isolated from a measured lead and at the same time, the transformer doesn´t indtroduce any added load neither any influence. If we´d like to go to a detail, the transformer consumes a negligible amount of energy of few tens of mW/10A from a measured lead, which is being lost in the winding and a load of the transformer.

Every current transformer is designed for a certain load, i.e. at a certain load it provides most accurate results. For example for the type AC-1050 it is 100 Ohms. In such a case is valid a transfer ration 1000:1, i.e. to the load flows a 10 mA current at a 10A current in a measured lead. It means, that on a 100 Ohm we will measure a voltage with a value of 1V. Output of a current transformer can be connected to a panel meter, digital voltmeter, oscilloscope or an AD converter input. By using an AD converter, it is also possible to monitor a course of a current and to discover various nonlinearities in a power consumption. 

Talema current transformers are top quality components with an outstanding quality / price ratio. Transformers are designed for soldering into a PCB. In our offer you can find more types, up to 100A maximum current. Currently we can offer you type AC 1050 also from the producer´s stock (ca. 8000 pcs) with 1-2 weeks delivery time (standard delivery time uses to be 20 weeks). Detailed information will provide you datasheets at given types.


SOS electronic s.r.o. Source: http://www.soselectronic.com/?str=1069

© SOS electronic s.r.o.

SOS electronic s.r.o.

2012042069 / 30.4.2012 / Test & measurement / SOS electronic s.r.o.


High currents, small spaces - a breeze for Wago 221
Perhaps the hottest this-year novelty from company Wago - 221 series terminal blocks are here.
..more
Try to go easier way
Embedded modules may surprise you by their contribution and an overall costs savings.
..more
UT204 is able to measure DC current and also True RMS
Clamp multimeter UT204 measures reliably even in real conditions of nowadays mains supplies and for an affordable price moreover.
..more
Round panel meter by means of a display?
New 1,4“ round display module from company 4D Systems with a round pixel placing is able to truly display various analog variables.
..more
One impulse is able to set intensity of luminance
Pulse-controlled dimmers of lighting - Finder series 15 offer an elegant solution of lighting dimming controlled by a single switch.
..more
Direct 10 000V where ever you need
If you have an application, where you work with kilovolts and you need a suitable diode, we have a solution for you.
..more
Marquardt 1841 - above standard classics
Pleasant actuation characteristics and reliable features of a push button switch Marquardt series 1840 make it attractive for all applications where you require control by a push.
..more
How do you cool in these hot days?
New 200mm fans EBM-Papst will cool down your devices while not making a lot of noise.
..more
IPETRONIK offers compact high voltage thermocouple module for safe temperature measurements on hybrid and electric vehicles
IPETRONIK offers compact high voltage thermocouple module for safe temperature measurements on hybrid and electric vehicles
New developments in the field of hybrid and electric vehicles present entirely new challenges to the manufacturer's testing departments. Not only in regard to the new technology but also especially in terms of safety aspects.
..more
UT204 is able to measure DC current and also True RMS
Clamp multimeter UT204 measures reliably even in real conditions of nowadays mains supplies and for an affordable price moreover.
..more
HSS-624 M: High-current Probe for up to 100 A - with Kelvin Contact
The new screw-in High-current Probe HSS-624 M is a market-driven development for transferring high-currents and, at the same time, carrying out a voltage measurement directly on the contact pads (4 pole measurement).
..more
K520 series kits (K521-K526)
K520 series kits (K521-K526)
The M520 family offers six reliable devices usable for the common measurements. These devices are optimized for great price/performance ratio. The devices use metal casing, which withstand rough manipulation and is fully recyclable. The M520 series offers precise electronic engineering (as is usual in all ETC devices) and automated calibration processes during manufacturing. Each kit contains the traceable calibration certificate. Since the M520 series devices use USB 2.0 for communication (with automatic fallback to USB 1.1), the device provides you with high refresh rates comparable to the stand-alone devices.
..more
M595 - 350MHz Digital Storage Oscilloscope 
M595 - 350MHz Digital Storage Oscilloscope
M595 is a dual channel USB oscilloscope compatible with USB 2.0 and USB 1.1 interface. The ease of installation and connection to computer makes M595 extremely portable. The device is connected to computer using standard USB 2.0 cable. It is powered from power adaptor compatible with European, UK, USA and Australian power system (part of the standard package).
..more
M525 - 150MHz Digital Storage Oscilloscope
M525 - 150MHz Digital Storage Oscilloscope
The M525 is a dual channel USB oscilloscope compatible with USB 2.0 and USB 1.1 interface. The ease of installation and connection to computer makes M525 extremely portable. The device is connected to computer using standard USB 2.0 cable and is powered directly from computer. The maximum power consumption of 2.25W makes this instrument highly usable with battery-powered notebooks.
..more
Interface interpreting signals from the CAN automotive bus
Interface interpreting signals from the CAN automotive bus
CAN-01 is a universal interface that interprets signals from the CAN automotive bus and generates analogue signals informing about:
..more
KPWR - The kit for power system measurements
KPWR - The kit for power system measurements
The kit for power system measurements is designed to meet requirements for measuring on power systems. The oscilloscope probes with 1:100 attenuation can measure voltages up to 2kV. They provide (together with oscilloscope isolated inputs) necessary tools for comfortable measurements of the power systems (shape of the waveform, harmonic analysis ...).
..more

All trademarks are the property of their respective owners. ISSN 1801-3813 , Kontakt: FANDA elektronik s.r.o, Těrlická 475/22, 735 35 Horní Suchá, tel. 00420-603531605, info@elektronika.cz