Theory, Advantages, Disadvantages, How to Install, Why Split core, types, selection guide, manufactures, suppliers and many more..

[sc_fs_faq sc_id=”fs_faqhf0ac2hfi” html=”true” headline=”h2″ img=”19836″ question=”What is Split Core Current Transformer?” img_alt=”Split Core Current Transformer” css_class=”” ]The split core current transformer is designed for electrical metering applications specifically designed to be installed around primary current-carrying conductors without disconnecting wires or breaking the monitoring circuit. These current transformers are the best solution for applications in energy measurement and management.

This CT are specially designed for easy installation in applications like portable metering.[/sc_fs_faq]

What is Split Core Current Transformer?

split core current transformer Manufacturers & Suppliers

The split core current transformer is designed for electrical metering applications specifically designed to be installed around primary current-carrying conductors without disconnecting wires or breaking the monitoring circuit. These current transformers are the best solution for applications in energy measurement and management.

Split core current transformer produced for easy installation in applications like portable metering.

[sc_fs_faq sc_id=”fs_faqxbmr7liwu” html=”true” headline=”h2″ img=”20282″ question=”How split Core Current transformer works?” img_alt=”How to Split Core Current Transformers Work?” css_class=”” ]Split core current transformers are designed for semi-permanent installations systems. They contain a transformer in which one of the cores to position around the conductor can be opened or moved and then locked with a latch or some other sort of flange. These can be mounted in electrical control panels to remotely track devices that occasionally monitored in inaccessible or harsh conditions while avoiding complex wiring. The working principle of Split core current is the same as normal current transformers. ” When the flowof AC current in the primary winding genrate an alternating magnetic field in the magnetic core, which then mutually induces an alternating current in the secondary winding.”[/sc_fs_faq]

The advantage of the split-core is that they can be retrofitted without disrupting it into a live network, which often makes them the unique alternative for engineers designing power meters. Split-core, or clamp-on, CTs provide an alternative to directly wiring to measurement or relay CTs in substation upgrade or retrofit applications when it is desired to add monitoring and SCADA data. This noninvasive approach provides for quicker installation with no disruption of service.

Applications of Split Core Current Transformer

  • Sub-metering
  • Power factor correction devices  
  • Metering (electrical energy meters)
  • Active power filter
  • Power measurement device for PLC
  • Sensing Overload Current
  • Ground fault detection
  • Digital fault recorder
  • In-factory display or in-home display
  • Inverters for solar and wind turbine systems
  • Electrical testing equipment and relay protection
  • Current, power, energy monitoring devices

Advantages and benefits of Split Core Current Transformer

The main advantages of split core CT over closed CT is

  • Split core allows you to directly monitor AC current without breaking or interrupting supply.
  • Easy to remotely monitor devices that place in inaccessible or harsh environments.
  • They are easy to install
  • Easily snapped over pre-existing wires
  • Ideal for Portable electricity monitoring devices

Disadvantages 

  • Split core CTs may be more expensive
  • Engineers also consider them to be somewhat less accurate than a solid core transformer.
SpecificationsDiscriptions
Rated input currentMax Current you have to measure
Rated output currentSelect as per measurment leval
phase angle errorPhase Shift angle in Seconday waveform
Isolation withstand voltageInsulation Breakdoun Volatge leval
Turns RatioSecondary turns: Primary Turns e.g. 2000:1
Accuracy ClassClass of accuracy in electrical measurements, if the class of accuracy is 0.2 that means an error of 0.2 A in a full scale 100A reading.
Linearity% linearity  w.r.t. change in input current
InstallationPCB mounting / wired
Operating FrequencySupply voltage frequency in Hz
operating temperatureDesired Temp range in ℃
Inside Diameterin mm( Also Check for Square/Rectangle)

Split Core Current Transformers key Specifications

Current Sensor Requirements and specifications you must know before selecting one for your application

  • Accuracy

In most applications, measurement accuracy directly impacts the efficiency of an overall system. The accuracy of the power calculation is dependent on the accuracy of the current sensors. A class 1 power meter requires current sensors with accuracy much better than 1%.

  • Drift

The drift of a sensor is related to the sustainability of a reading over time. Some variations of its characteristics may be caused by changes in the ambient humidity and temperature, component aging, and so on.

  • Linearity

The linearity of the sensor refers to the stability of its characteristics within the full operating mode. A high linearity of the analog-sensing part is essential to measure a wide range of primary currents accurately, especially at low current levels.

  • Phase shift

The accuracy of the true active power or energy calculation is not only related to the accuracy and linearity of the AC current and voltage sensors in terms of amplitude, but also to the phase shift that may occur between the measurement of these correlated values. The phase shift should be as low as possible.

  • Integration

Being self-powered, the CTs do not require any other wiring than a 2-wire output connection to the main power monitor unit. The typical 1-A and 5-A or 333-mV outputs are compatible with most standard power meters on the market. Current outputs are also almost insensitive to interferences and are preferable to voltage outputs when long cables are required to connect the sensors to the power meter.

  • Price

The price of the sensors is important when accurate current sensors are required for 3-phase power measurement.

Types of split core CT

Depends on core material there are several different types of split core current transformer are available in the market that can be used in different applications.

1. FeSi split core CT 

FeSi split core current trnasformer is the most affordable option. but, it have poor linearity, especially at lower currents.It is better suited for high current measurements only where precision is not as important as getting a rough figure for electricity consumption. Such CT are also large and weighty, so it has specific physical limits for use.

2. FeNi split core CT 

If you’re searching for something more precise,a FeNi split core CT does a great job. Those provide a better measuring performance, including low current conditions. They’re also more expensive though. FeNi split core CT struggle with linearity and take up more space in your panel.

3. Ferrite split core CT 

The modern ferrite core transformers have increased permeability and can be used in a wide variety of power monitoring applications, replacing both FeSi and FeNi transformers, even with low magnetic saturation. It provides an affordable alternative to transformers from FeSi and FeNi.

Split Core Current Transformer Price

Split core current transformer price will change brand to brand for latest price contact the below seller

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