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Flexible rogowski coil – MRC Series – 100A to 600A
Price range: R 690.00 through R 750.00
The MRC series is a new generation of flexible Rogowski coil (Rogowski® coil) current sensors, which are especially suitable for measuring in combination with portable devices. MRC coils have different sizes to cope with different conductors.
These coils can be easily install, especially in areas with limited space, unlike large cumbersome CTs (Current transformers)
It can be installed by opening up the coil and with out the need to switch of the electricity or disconnecting any wires.
The new generation of MRC coil strengthens the shielding layer and greatly reduces the influence of external magnetic fields; it can be directly connected to our rail-mounted and panel-type meters without the need for external integrators.
| Weight | N/A |
|---|---|
| Available Sizes | MRC-24, MRC-36 |
| Connector Type | 2 Pin, BNC |
Available sizes
| Model | MRC-16 | MRC-24 | MRC-36 |
|---|---|---|---|
| Window size | 16mm | 24mm | 36mm |
| Reference Rated current | 100A | 300A | 600A |
If you need to measure larger currents, then have a look at our NRC range of Rogowski coils…
Advantages of Rogowski coils:
- Easy to install in limited spaces, as is it soft and flexible
- Can be installed without having to switch off power or disconnect power supply
- Easy to install around large bus bars
- Excellent linearity
- Wide dynamic range
- Not damaged by large overloads
- Excellent degree of rejection to the external current conductor
- No danger from open-circuited secondary
- Zero power consumption
- Small position error
- Long-term stability
- Wide dynamic range
- IP67 protection level
Applications of Rogowski coils:
- Smart meters
- Rectifier current measurement
- Power quality analysis
- Motor overload/short circuit protection
- Current monitoring of power frequency and intermediate frequency welding machine
- Medium and high voltage switchgear protection system
- Remote Terminal Units (RTU)
Specifications:
At 25℃, RL = 100 kΩ
Product Downloads:
Frequently Asked Questions
Warranty
These energy loggers has been field tested to be reliable and with a very low failure rate. If in the rare case something does go wrong, we will swop it out if still under guarantee. This energy logger has a two-year swop-out guarantee. As an authorised Meatrol repair centre, we can also repair Meatrol energy loggers and have stock of replacement parts.
AmpX Management
Technical support
If you have any difficulty with the meter setup, installation, data analysis, or anything else, we will gladly support you.
Please contact our technical support department for technical support on WhatsApp at +27 82 940 1858, or by email: info at AmpX.co
Free Demonstration
We can offer you a free demonstration of our energy meters at our premises or within 100 km. If further away, we will need to charge for our travel expenses.
Alternatively we can also do an online video consultation and demonstration.
Click here to request a demonstration if 100 km from our address.
Click here to schedule an online video call and demonstration.
What is a Rogowski coil?
Rogowski coils have been used for the detection and measurement of electric currents since 1912. They are based on a simple principle: an “air-cored” coil is placed around the conductor in a 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.
They can be used in similar circumstances to CTs (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 weight and in some applications are light enough to be suspended on the conductor being measured.
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