DA05-1 Integrator
DA05-5 is a 5A output rogowski coil integrator with 5-level alternative
rated current ,its power supply is 24V DC or≥15W,
and it complies with standard clamping-track installation.
What does Integrator do?
• Rogowski coil output is weak voltage mV signal,DA05-5 has ability to amplify and convert it to standard signal which could be catched by multi-meter and scope.
• Rogowski coil output is proportional to the frequency of the measured current, the signal equalization ensure a linear response on a wide frequency range. DA05-5 allows to use coils on different electrical network frequencies, keeping the same output level over the frequencies.
• An integrator is essential to equalize and shift by 90° the output signal from the Rogowski coils. It consists of an active electronic circuit with negligible offset and a good linearity.
Feature
- DA05-5 can be combined with any model and size of Y-FCT, NRC or ZRC,MRC Rogowski coils.
- The available values are:0~5A AC.
- 5-level alternative rated current, each levels matches with one soil, a single coil is not permitted to switch between 5 levels.
- High bandwidth from 30 to 5kHz
- On request the input value can be customized according to the application.
- Due to its specific features, flexible Rogowski coil is an extremely comfortable solution for current measurement and can be used in a number of cases where traditional current transducer is not the adequate solution.
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Advantages
• High read accuracy 0.5%
• 5 current measuring ranges
• High bandwidth for measurement 30 to 5kHz
• Output 5A rms
Related Products
• Y-FCT,ZRC,NRC,MRC
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Applications
• Measuring devices, lab instrumentation
• Power monitoring & analysis
• Harmonics and transients monitoring
• Welding machine control
• High current measurement
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What is a Rogowski coil?
Rogowski coils have been used for the detection and measurement of electric currents for decades. They are based on a simple principle: an "air-cored" coil is placed around the conductor in toroidal fashion and the magnetic field produced by the current induces a voltage in the coil. The voltage output is proportional to the rate of change of current. This voltage is integrated, thus producing an output proportional to the current.
By using precision winding techniques, especially developed for the purpose, the coils are manufactured so that their output is not influenced by the position of the conductor within the toroid, and to reject interference from external magnetic fields caused, for example, from nearby conductors.
Basically, a Rogowski coil current measuring system consists of a combination of a coil and conditioning electronics.Rogowski coil current transducers are used for the AC measurement.
They can be used in similar circumstances to current transformers but for many applications they have considerable advantages:
• Wide dynamic range.
• High linearity.
• Very useful with large size or awkward shaped conductors or in places with limited access. Thanks to the structure without hard core, the coil can be easily manufactured according to the application or to the available space.
• Unlike traditional current transducers, there is no danger from open-circuited secondaries.
• They cannot be damaged by large overloads.
• They are non-intrusive. They draw no power from the main circuit carrying the current to be measured.
• They are also light weighted and in some applications are light enough to be suspended on the conductor being measured.
The transducer does not measure direct currents but, unlike a current transformer, it can carry out accurate measurements of AC component even if there is a large superimposed DC component, since there is no iron core causing saturation. This feature is particularly useful for measuring ripple currents for example in battery charging systems.
Specification
| Model |
DA05-5 |
| Rated output |
5A AC rms |
| Maximum Output(overload) |
5.5A AC rms(for short term) |
| Rated ratio(DIP switches) |
S1: 100A
S2: 600A
S3: 1000A
S4: 3000A
S5: 6000A |
| Potential meters |
100A |
MRC-24 (50mV/kA@50Hz) |
| 600A |
MRC-36 (50mV/kA@50Hz) |
| 1000A |
NRC-100 (85mV/kA@50Hz) |
| 3000A |
NRC-150 (85mV/kA@50Hz) |
| 6000A |
NRC-200 (50mV/kA@50Hz) |
| Read Accuracy |
0.5% typical at 1%(≥10A) to 110% of rated Current @25ºC |
| Phase error |
≤0.5° |
| Linearity |
±0.2% of reading(10% to 120% of range) |
| Bandwidth |
30Hz to 5kHz |
| Maximum Burden |
0.2Ω(each phase) |
| Measurement |
Secondary CT to measure output of integrator |
| Power consumption |
≤15W |
| Output on 0A (zero drift) |
≤0.5A@1000A |
| Temperature drift |
50ppm/ºC |
| Weight |
220g |
| Dimension |
105*75*45mm |
| Power supply |
24V DC(≥15W) |
| Operating temperature |
-20ºC to 70ºC |
| Storage temperature |
-30ºC to 90ºC |
| Relative humidity |
80% max.without condensation |
| Protection degree |
IP20 |
| NOTE |
Integrator can not be installing in the load which already flow more than 20% of rated current before integrator power on.
Shut down the primary current(or disconnect the coils) and wait for 10 seconds when Integrator RED light flashes. |
| Other requirements,please contact us to OEM. |
Arc fault current
Smart meter
Rectifier current measurement
Power quality analysis
Motor overload / short circuit protection
Power grid harmonic monitoring, active power filter
Ground fault monitoring of large complex conductors
Power fault indicator, transmission line fault diagnosis device, line spacing ranging
Low voltage monitoring unit
Power frequency and medium frequency welding machine current
Protection system of medium and high voltage switchgear
Electric furnace transformer secondary side current measurement
Capacitance discharge and lightning current detection
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