What are Power quality problems and Solutions?
What are common Power Problems ?
Common power problems: Harmonics
Harmonics are one of the most common power quality issues. Harmonics are unwanted frequencies that occur in an electrical system as a result of-Linear Loads. Non-linear loads, such as power electronics devices (computers, variable frequency drives, UPS systems,etc), draw non-sinusoidal currents from the power supply, leading to distortions in the voltage waveform. These distortions manifest as additional frequencies (harmonics) that are multiples of the fundamental frequency (typically 50 or 60 Hz).
Harmonics can cause several problems, including:
1. Equipment malfunction: Harmonics can cause overheating and premature failure of sensitive equipment, such as transformers, motors, capacitors, and electronics. The increased heating is due to the additional power losses caused by harmonics.
2. Voltage distortion: Harmonics can distort the shape of the voltage waveform, resulting in fluctuations, voltage dips, or notches, affecting the performance and reliability of equipment.
3. Electromagnetic interference (EMI): Harmonics produce electromagnetic fields that can interfere with the proper operation of nearby electronic systems. This interference can disrupt communication systems, data transmission, and signal quality.
4. Increased energy losses: Non-linear loads draw reactive power from the system, leading to increased overall power consumption and higher energy bills.
Common power problems: Poor power factor?
Power factor is a measure of the efficiency of electrical power utilization in an electrical system. It represents the ratio of real power (kW) to apparent power (kVA). A poor power factor occurs when the electrical load has a significant reactive power component, causing the apparent power to be higher than the real power. Some causes of poor power factor include:
● Inductive loads: Loads such as electric motors, transformers, and fluorescent lights that require magnetic fields to operate can introduce reactive power into the system.
● Low power factor penalties: Utilities often charge penalties for low power factor since it reduces the efficiency of the electrical system and increases the burden on the distribution network.
● Increased losses: Poor power factor results in higher line losses, leading to increased energy consumption and reduced efficiency.
● Reduced system capacity: A low power factor reduces the effective capacity of the electrical system, potentially requiring the installation of additional equipment or infrastructure.
Common power problems: 3 phase unbalance?
In a balanced three-phase system, all three phases carry equal currents and have balanced voltage magnitudes. However, if the loads connected to each phase are not equal or if there are issues in the distribution system such as unbalanced transformers or faulty connections, a 3-phase unbalance can occur. This unbalance can result in uneven voltage levels, current imbalances, increased losses, reduced efficiency, and overheating of equipment. It can also lead to torque pulsations and reduced performance in motors.
What are the power quality solutions(Products)?
Intone Power-AHF Active Harmonic Filter: Best Power Quality Control Device
Intone Power-AHF Active Harmonic Filters are power electronic devices dedicated to improving the quality of the electrical energy and the efficiency of its use.
Intone Power-AHF compensate current harmonics by injecting equal but opposite harmonic compensating current. In this case, the shunt Active Harmonic Filter operates as a current source injecting the harmonic components generated by the load but phase shifted by 180 degrees. As a result, components of harmonic currents contained in the load current are canceled by the effect of the active filter, and the source current remains sinusoidal and in phase with the respective phase-to-neutral voltage. This principle is applicable to any type of load considered as a harmonic source. Moreover, Intone Power-AHF can also compensate the load power factor and 3 phase unbalance.
Intone Power-SVG Static Var Generator: Best Power Factor Correction Device
The Intone Power-SVG (Static Var Generator) is a device used for improving power quality and addressing issues such as poor power factor and 3-phase unbalance in electrical systems. It is a type of static compensator that is capable of dynamically controlling the reactive power flow in an electrical system.
By injecting or absorbing reactive power, the Intone Power-SVG helps to maintain a near unity power factor, which reduces energy losses and improves the efficiency of the system.Intone Power Static VAr Generator is an effective solution for mitigating power quality issues such as poor power factor and 3-phase unbalance. It plays a crucial role in maintaining the stability, efficiency, and reliability of electrical systems.
Intone Power-ALB Active Load balancer: Best 3 phase load balancer
Intone Power-ALB Active load balancer consists of power electronics components such as voltage source converters (VSCs) and energy storage devices. It continuously monitors the voltage and current waveforms and injects compensating currents to balance the system and maintain a stable voltage profile.
When the Active load balancer detects an unbalanced condition in the three-phase system, it generates compensating currents with the appropriate magnitude and phase to mitigate the imbalance. These currents are injected into the system through the VSCs, effectively balancing the load and restoring symmetrical voltage levels.
Intone Power achieved ISO Quality System certification in our founding year, underscoring our commitment to excellence from the outset. We have implemented the Manufacturing Execution System (MES) across our entire quality control process. This comprehensive system ensures rigorous oversight at every stage, from incoming material inspection and in-process checks to final shipment.
Our use of MES extends to meticulous material traceability for each product, with records maintained for over a decade. Such detailed traceability underscores our dedication to quality and accountability.
At Intone Power, we are equipped to conduct advanced testing procedures, including salt spray tests and vibration tests, to ensure product durability and reliability. Every Printed Circuit Board Assembly (PCBA) undergoes a thorough functional test at the end of the production line, guaranteeing that our products meet the highest standards.
Furthermore, we have invested in three sets of automatic function testing equipment for modules and three high-temperature aging rooms. Here, each finished product is subjected to a rigorous 24-hour aging test, simulating extended usage to ensure that our products perform reliably under all conditions.