Electric Reactors
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Wuxi Huipu Electronics Co., Ltd. has engaged in the production of electronic components for 20 years, passed and strictly followed the ISO-9001:2015 quality system certification, the team has accumulated rich experience in R&D, production management and quality assurance. We specialize in producing Edgewise Wound Inductors, Square Common-mode Inductors, Ring Transformer, Three-phase Inductor, Single-phase Inductor, and other common Mode Inductors.
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The products we produce include but are not limited to High-frequency transformers, low-frequency transformers, surface mounted transformers (SMD transformers), reactors, power filter inductors, power adapters, solenoid valve coils, high-voltage transformers, current transformers, voltage transformers.
What is Electric Reactors
A reactor is an electrical component made up of a wire coil. Its purpose is to generate a magnetic field that opposes the flow of electrical current through a circuit. A reactor's primary function is to keep the amount of electrical current flowing in the circuit to a safe and manageable level. If you want to know the specifications and prices of Electric Reactors, please contact us!
Advantage of Electric Reactors
Coils in an inductor can be used to store energy. The function of the inductor depends upon the frequency of the current passing through it. That is, higher frequency signals will be passed less easily and vice versa. This function tells that it blocks AC Current and passes DC Current. Hence, it can be used to block AC signals.
Inductor stores energy in the form of magnetic energy. Coils can store electrical energy in the form of magnetic energy, using the property that an electric current flowing through a coil produces a magnetic field, which in turn, produces an electric current. In other words, coils offer a means of storing energy on the basis of inductivity.
If two terminals of an inductor are connected to two terminals of another inductor, then the inductors are said to be parallel. We know that when resistors are connected in parallel, their effective resistance decreases. Similarly, when inductors are connected in parallel form, their effective inductance decreases. Inductors in parallel are somewhat similar to the capacitors in series.
When a reactor is connected in series in a circuit, it can restrict the occurrence of short-circuit currents. This is because the reactor is essentially an inductive coil, and upon applying voltage, it generates a counter electromotive force internally, hindering the rapid change in current within the coil and preventing sudden current surges.
In high-voltage transmission lines, capacitive currents due to line-to-line capacitance can lead to an increase in line voltage. The reactive current generated by the reactor can be utilized to offset this capacitive current, thereby achieving reactive power compensation and enhancing system efficiency.
Reactors can effectively suppress capacitive charging currents in the line, crucial for maintaining the stability and voltage levels of the power system.
Conversion and Storage of Electromagnetic Energy
Reactors can implement control over current variations through different configurations, optimizing circuit performance.
Reactors contribute to reducing harmonic interference, safeguarding sensitive electronic devices such as inverters and improving their stability.
In power systems, reactors assist in maintaining bus voltage levels, ensuring the stable operation of electrical equipment on non-faulty lines.
Controllable reactors, such as mechanically adjustable reactors or magnetic-controlled reactors, can dynamically adjust their capacity based on operating conditions to better stabilize system voltage and reactive power control.
Type of Electric Reactors
Generators Reactors
Generator reactors are inserted between the generator and the generator bus. Such reactors protect the machines individually. In power station generator, reactors are installed along with the generators. The magnitude of reactors is approximately about 0.05 per unit. The main disadvantages of such type of reactors are that if the fault occurs on one feeder, then the whole of the system will be adversely affected by it.
Feeders Reactors
Reactors, which is connected in series with the feeder is called feeders reactor. When the fault occurs on any one feeder, then the voltage drops occur only in its reactors and the bus bar is not affected much. Hence the machines continue to supply the load. The other advantage is that the fault occurs on a feeder will not affect the others feeders, and thus the effects of fault are localized.
Bus-Bar Reactor
When the reactors are inserted in the bus bar, then it is called bus-bar reactors. The constant voltage drop and constant power loss in reactors may be avoided by inserting the reactors in the bus bars. The bus bar reactor for ring system and the tie system are explained below.
Bus-Bar Reactors (Ring System)
Bus-bar reactors are used to tie together the separate bus sections. In this system sections are made of generators and feeders and these sections are connected to each other to a common bus bar. In such type of system normally one feeder is fed from one generator. In normal operating conditions a small amount of power flows through the reactors. Therefore voltage drop and the power loss in the reactor is low. The bus bar reactor, therefore, made with high ohmic resistance so that there is not much voltage drop across it.
The operation of the system is similar to the ring system, but it has got additional advantages.In this system, if the number of sections is increased, the fault current will not exceed a certain value, which is fixed by the size of the individual reactors.
Application of Electric Reactors
Tuning Circuits: With the help of inductors, the tuning circuits can select the desired frequency. The capacitors type along with the inductor are used in various electronic devices such as radio tuning circuits, a television in order to modify the frequency and help to select within multiple channels of frequency.
Sensors: The inductive proximity sensors are very reliable in operation and is a contactless sensor. Inductance is the main principle behind it in which the magnetic field in the coil will oppose the flow of electric current. The proximity sensors mechanism is used in traffic lights to detect traffic density.
Store Energy in a Device: Inductors can store energy for a small period of time because the energy which is being stored as a magnetic field will be gone when the power supply is removed. Uses of inductors can be seen in computer circuits where power supplies can be switched.
Induction Motors: In induction motors, the shaft in the motor will rotate due to the presence of the magnetic field produced due to alternating current. The speed of the motor can be fixed according to the frequency of the supply of power from the source. The use of inductors into the motor's speed can be controlled.
Transformers: A combination of multiple inductors with a shared magnetic field can be designed into a transformer. One of the major uses of transformer can be seen in power transmission systems. These are used in decreasing or increasing the power transmission as step down or step-up transformers.
Filters: Inductors when combined with capacitors will be used as filters. The input signal's frequency while entering the circuit is limited by the use of these filters. With the increase in the frequency of supply, the inductor's impedance increases.
Chokes: As we are aware that when AC current flows through inductors, it will create a current flow in the opposite direction. This results in the inductor choking the AC current flow and passing the DC current. This mechanism is used in the power source where the AC supply is converted into DC.
Ferrite Beads: We have seen ferrite beads used in computer parts and in charging cables of mobile. Inductors used in ferrite beads helps in reducing the frequency of radio interface which the cable creates.
Relays: Relay behaves as an electrical switch. With the use of an inductor coil in the switch, there is a magnetic field produced wherever the switch comes in contact with the flow of AC current.
How to Choose Electric Reactors
Determine the purpose of the electric reactor (e.g., voltage control, power factor correction, harmonic filtering).
Understand the specific application and requirements in your electrical system.
Different types of reactors serve different purposes. Common types include
Shunt Reactors: Connected in parallel to the system to compensate capacitive reactive power.
Series Reactors: Connected in series to limit fault current and control power flow
Detuning Reactors: Used in harmonic filtering to prevent resonance.
Consider the voltage and current ratings required for your application.
Ensure that the selected reactor can handle the maximum voltage and current levels in your system.
Evaluate the impedance and reactance characteristics of the reactor.
Match the impedance of the reactor with the system requirements to achieve optimal performance.
Ensure that the reactor is designed to operate at the frequency of your power system (typically 50 Hz or 60 Hz).
Consider the environmental conditions where the reactor will be installed.
Ensure that the reactor can operate effectively under temperature and humidity conditions specific to your location.
Evaluate the cost of the reactor and compare it with your budget.
Consider the long-term benefits and operational costs associated with the selected reactor.
Choose reactors from reputable manufacturers with a history of producing reliable and high-quality products.
Look for certifications and standards compliance.
Assess the maintenance requirements of the reactor.
Choose a reactor with minimal maintenance needs to reduce downtime and operational costs.
If you are unsure about the specific requirements for your system, consider consulting with electrical engineers or experts in the field.
Ensure that the selected reactor complies with relevant industry standards and regulations.
Consider whether the reactor allows for future expansion or modification to accommodate changes in your electrical system.
Common Malfunctions and Troubleshooting Methods for Electric Reactors
Overheating
Possible Causes: Overloading, poor ventilation, or issues with the cooling system.
Troubleshooting: Check for overloading conditions, ensure proper ventilation, and inspect the cooling system. Clean or replace air filters if necessary.
High Noise Levels
Possible Causes: Resonance, loose components, or mechanical issues.
Troubleshooting: Investigate for resonant conditions in the system, tighten loose components, and inspect for any mechanical problems. Lubricate moving parts if needed.
Excessive Vibration
Possible Causes: Misalignment, loose parts, or issues with the foundation.
Troubleshooting: Check for misalignment, tighten loose parts, and inspect the foundation. Address any issues found during the inspection.
Abnormal Temperature Rise
Possible Causes: Poor connections, high resistance, or insufficient cooling.
Troubleshooting: Inspect connections for signs of overheating, check for high resistance in the circuit, and ensure proper cooling. Clean or replace cooling components as necessary.
Corrosion
Possible Causes: Environmental conditions, moisture, or poor material quality.
Troubleshooting: Inspect for signs of corrosion, address environmental factors, and consider using corrosion-resistant materials in the construction of the reactor.
Open Circuits or Short Circuits
Possible Causes: Manufacturing defects, insulation failure, or physical damage.
Troubleshooting: Perform a visual inspection for physical damage, use insulation resistance testing to identify open circuits, and check for short circuits. Replace faulty components.
Excessive Voltage Drop
Possible Causes: High impedance, poor connections, or inadequate conductor size.
Troubleshooting: Measure impedance, inspect connections for tightness, and ensure that the conductor size is appropriate for the current. Address any issues found during the inspection.
Harmonic Distortion
Possible Causes: Nonlinear loads, resonance, or poor system design.
Troubleshooting: Identify and mitigate nonlinear loads, check for resonant conditions, and review the overall system design to minimize harmonic distortion.
Inadequate Performance in Harmonic Filtering
Possible Causes: Incorrect tuning, insufficient capacity, or wrong type of reactor.
Troubleshooting: Verify the tuning of the reactor, ensure it has sufficient capacity for the harmonic load, and confirm that the reactor type is suitable for the application.
Failure to Control Reactive Power
Possible Causes: Faulty control circuit, sensor issues, or incorrect settings.
Troubleshooting: Inspect the control circuit, test sensors, and review the settings. Calibrate or replace components as needed.
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Frequently Asked Questions
Q: What is a reactor electricity?
Q: Is an inductor a reactor?
Q: What is the difference between line reactor and line inductor?
Q: What is the difference between reactance and reactor?
Q: What is the principle of inductive reactor?
Q: Are line reactors and load reactors the same?
Q: What is a reactor in electrical?
Q: What is the reactance of an reactors?
Q: What is the function of coil in reactor?
Q: What is the principle of shunt reactor?
Q: What is the difference between a bus reactor and a line reactor?
Q: What is the difference between a bus reactor and a shunt reactor?
Q: What is difference between reactor and transformer?
Reactors are connected in series with power capacitors, forming a resonant circuit conveniently detuned, so that, the whole unit has an inductive impedance at the frequencies of all harmonics in the installation. These reactors are specially designed to work in series with FMLF capacitors.
Q: What is a 3 phase reactor?
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