Residual Voltage Transformers are crucial instruments in power systems. They are especially used in high-voltage zones. They assist in protecting the system from difficulties like ground faults and also voltage imbalances.
When used to measure residual or fault voltages, electrical equipment manufacturers like MACROPLAST develop high-end electrical solutions that provide accurate and reliable results. These RVTs provide accurate voltage values, withstand insulation, and prevent various conditions outside the electrical system. They detect faults quickly and make power systems safe and efficient.
In this blog, we will learn about residual voltage transformers and their uses while protecting power systems and equipment from damage.
What is a Residual Voltage Transformer?
An RVT is a special transformer used to check Residual Voltage. It detects the voltage left in a system of electrical circuits after the voltage from the individual phases has been adjusted or canceled. This leftover voltage appears when there is some problem with the wires, such as when a wire comes into contact with the ground or there is an inequality in the electrical load.
RVTs are designed to measure this remaining voltage and notify other guard devices such as relays. These relays can isolate and trip off the faulty section leaving the rest of the system secure.
Let’s see the uses of Residual Voltage Transformers
1. Detect Faults and Protect the System
RVTs identify earth faults or leakage currents that arise from the earth point and may damage or cause fires. When this occurs, RVTs identify the voltage that persists and then forward the corresponding signal to protective devices. The protection device shuts off the power supply to the part to reduce further damage if the surge continues.
2. Maintaining Power System Stability
These transformers also balance the power system. In the three-phase power system, all the voltages of the three phases must equal zero. If they do not, it means something is wrong. RVT identifies the situation and rectifies the offset before it leads to further damage.
3. Coping with Transformers and Generators
Transformers and generators constitute essential equipment in any electric circuit. RVTs copy these machines and protect against ground faults or imbalanced voltages.
4. Identify Ground Faults in substations
RVTs are applied to high-voltage substations to locate ground faults with a high level of accuracy. The RVT senses the fault, trips protective devices, and diminishes further deterioration within the substation.
5. Protecting Industrial Systems
In industries, many machines use electricity, and RVTs are used to ensure that the system remains safe. The RVTs rectify the faulty components or voltage imbalance and give a signal to the protective devices in case of any damage to the machinery.
Conclusion
Residual voltage transformers revolve around simple systems that facilitate the protection of electrical systems. So it is important to have a strong, durable RTV in your setting. You should install a residual voltage transformer sourced from trusted suppliers. MACROPLAST is one of the leading suppliers that provide you with world-class products. Their delivered RTVs accurately identify and measure ground faults and voltage inequalities. They also transmit information to protection equipment and verify the proper operation of the system.
