





MRCT relay and current transformer test set
The MRCT takes relay and instrument transformer testing technology to the next level
The MRCT takes relay and instrument transformer testing technology to the next level
Key Benefits
- Reduce testing time by 20 % on multi-tap CTs
- Compact, portable, and lightweight
- One button automated test mode
- Enhanced ratio accuracy
Description
The MRCT relay and current transformer tester is a lightweight, robust, portable unit used to perform demagnetisation, ratio, saturation, winding resistance, polarity, phase deviation, and insulation tests on current transformers. The MRCT can be configured to include functionality for performing an excitation test on CTs using DC voltage, allowing measurement of knee points on CTs up to 30 kV. Additionally, the MRCT can be configured to test VTs and single phase relays.
The MRCT simplifies testing by automatically calculating ratio errors, saturation curves, and knee points. It also provides a microprocessor-controlled variable voltage and current output, as well as precision instrumentation, for automatically testing single and multi-ratio CTs, ultimately reducing testing time and increasing productivity.
What’s more, the MRCT will directly connect to multi ratio CT’s and perform all tests – saturation, ratio, polarity, winding resistance, and insulation – on all taps with the push of a button and without changing leads. When the test is finished, your report is generated automatically.
The MRCT can be controlled via Megger’s Smart Touch View Interface (STVI) controller. The STVI is a full colour, high resolution, LCD touch screen that allows you to perform manual and automatic testing quickly and easily via the manual test screen, as well as by using preset test routines. The large display enables you to easily read all pertinent data while the test is being performed, and gives you the ability to view the current transformer’s saturation curve. The unit can also be configured to come without a Megger STVI and can be controlled via a laptop with Megger’s PowerDB software.
Specifications
Frequently Asked Questions
Why integrate a relay test set into a CT test set?
CTs are the communication points between the various assets in the substation and the relays so, if taking something offline in order to test the CTs, it is beneficial to have the ability to perform some standard relay tests, as needed. With the relay testing option, a simple CT tester can be turned into a troubleshooting and multipurpose tool.
If the MRCT has an onboard computer/display, can I still connect my laptop?
Yes. All versions of the MRCT, including those with built in displays, can be connected to your laptop and run via PowerDB.
Can CTs be tested when mounted in transformers, oil circuit breakers, or switchgear?
Yes. However, it is necessary for the parent asset to be completely isolated from the electrical system prior to testing.
Is the MRCT configurable?
Yes, whether you need a simple 2kV CT tester or advanced DC testing methods, VT testing, single phase relay testing, onboard or computer control, the MRCT can be customised to meet your unique testing needs.
Can I upgrade my MRCT in the future?
Yes, the MRCT includes the ability to upgrade testing capability. With various configurations and accessories, the MRCT system can be upgraded as new testing needs emerge.
How can i get technical support on this product ?
Information about Service / Repair / Calibration and Technical Support are available here



