When we think about transformers, we often consider distribution and power transformers. But there is a broader category that goes beyond both. While power and distribution transformers are essential for power consumption and therefore most recognized, knowing other types helps identify which type of transformer one might need in their electrical grid. Some may need a dry-type transformer for low maintenance and longevity, or others might require a voltage transformer for measuring voltage. Macroplast is one of the reliable all types of transformers manufacturers that caters to the diverse needs of clients for fulfilling their transformer requirements for efficient and reliable power flow in industrial, commercial and residential spaces.
Types of Transformers
Transformers perform the function of
a.) increasing or decreasing the voltage to transmit over long distances, distributing for utility
b.) measurement of current, voltage and energy
c.) protection during faults.
Here is the broad classification of all types of transformers:
Based on Power Supply
When power is supplied from power generation plants, it goes through the necessary stepping up and stepping down of voltages before it reaches the end consumer. Based on power transmission, there are two main categories of transformers:
- Power Transformer: This transformer steps up the voltage to lower the current for safe transmission and minimize energy losses. There are two main purposes of lowering the current. First, the high current is directly proportional to energy losses. Secondly, high current needs very large conductors, which is not feasible over long power lines. Therefore, by stepping up the voltage, the current is reduced, since power remains constant in the equation P=Vi, where P is power, V is voltage, and i is current.
- Distribution Transformer: High voltages are not usable in consumer electricity consumption, as they require special equipment. Transmitting high voltages directly to the consumer’s end is dangerous, and home equipment cannot handle the large amount of voltage. Therefore, distribution transformers step down the voltage for safe and reliable power usage.
Based on Measurement
Instrument transformers are used in industrial and large commercial settings. These are meant for measuring voltage, current and energy consumed. Here are two of these transformers:
- Current Transformers: Current transformers step down the high current to a proportional value, which can be measured by an ammeter. These are used in many industrial environments where high currents are being distributed across the circuit.
- Voltage: Like a current transformer, a voltage transformer lowers the voltage value in proportion to its original value or a voltmeter to measure the voltage accurately and safely.
Based on Insulation
Transformers are insulated to dissipate heat and insulate the components. There are two popular ways for insulation:
- Oil Immersed: In oil-immersed transformers, oil acts as a coolant to dissipate heat within the transformer. Also, it provides excellent insulation from acting, corona discharge and other electrical breakdowns.
- Dry Type: The dry type transformers don’t use oil, because oil requires high maintenance to make it contamination-free and ensure its dielectric strength is reliable. The transformer parts are made with special insulating material like epoxy cast resin.
Special Type
- Residual Voltage transformer: This transformer is a specialized one, used for earth fault detection, maintaining stability in case of phase imbalances, and protecting capacitor banks from neutral grounding faults.
Conclusion
Transformers vary in their functions and the technology used in their construction. If we consider all types of transformers manufacturers, Macroplast Transformers is the name one can rely upon. Their innovative solutions aim at high efficiency, stability and reliability of their vast range of transformers. They serve various voltage classes and provide all types of transformers in different variants for a diversity of choices.
