The Current Transformer is one of the important types of transformers used in an electrical system. Usually, the high-power circuits and power lines have a high current level which creates problems in measuring the current. With the help of a current transformer it is possible to step down the current level; making it possible to measure current. The Current Transformers step down the current level by stepping up the voltage level. It is easy and safe to process the lower current level through the monitoring equipment, relays, and meters.
The Current Transformer is also known as Series Transformer due to the primary winding being connected in series to the line load. In the current transformers, the secondary and the primary winding current is directly proportional to each other. To support different applications, different types of current transformers are used in an electrical system. To help you understand better, we are sharing about the different types of current transformers below.
Types of Current Transformers
Bar-Type Current Transformer – It is made using a hollow-metal bar of suitable metal and required size which is considered as the primary winding. The power conductor carrying the current produces the magnetic field that helps in the measurement of the current induced in the metal bar. The bar-type current transformers are designed for mainly high-voltage power systems like power plants or substations.
Wound-Type Current Transformer – In this type of current transformer, both the primary and secondary windings are wounded around the magnetic core. The current is induced in the secondary winding due to the magnetic field produced by the primary winding. It then helps in measuring the current using different monitoring equipment. The wound-type current transformers are mainly used in control systems, instrumentation, or for small current measurements in other systems.
Summation Current Transformer – To get high accuracy when measuring the current flow using a current transformer, one must go for a summation current transformer. Several windings are connected in series in this type of current transformer. It is available in multiple sizes and can accommodate current ratings and conductors of different sizes. The summation transformers are mainly used in three-phase power systems where multiple conductors are placed.
Applications of Current Transformers
- Helps in detecting undercurrent and overcurrent situations to timely trigger or notify the protective devices to pause working. It also helps in providing feedback to control systems and protection relays.
- Helps in detecting the faults in the power systems to prevent damage. The current flow is monitored and analyzed to get accurate information about the nature and location of the fault. By detecting the faults it is possible to resolve the issue as early as possible for restoring power.
- Current Transformers are also utilized in monitoring and measuring energy efficiency. By measuring the current flowing, it is possible to get the details about the energy consumption. It helps in minimizing energy wastage by optimizing the usage of energy.
We hope that the above information is helping you understand more about Current Transformers and their multiple applications. If you are planning to buy the current transformers, then go for a reputed firm like MACROPLAST. They offer different types of current transformers for different settings at cost-effective prices.
