High Voltage Electrostatic Field
What is a High Voltage Electrostatic Field? A high voltage electrostatic field is a kind of electrical field or voltage potential difference that involves an orderly structure of stationary electric charges with excellent uniformity and no net electric current flow. This field can also be referred to as a DC electrostatic field. Commonly referred to as DC electrostatic field, high voltage electrostatic fields are presented as higher electric fields that are formed between two parallel charged plates, known as the electric field lines.
High voltage electrostatic fields are used for a variety of purposes such as in electrical equipment, in electric insulators and electrostatic precipitators (ESPs). In particular, high voltage electrostatic fields are used to create repulsive force for particles in the air and it is the core principle in many food industry applications such as spray drying, color removing, washing, and product cleaning. Additionally, electric insulators are used in the industry of electrical appliances, cables and other materials, in order to provide electric insulation and safety. Electric insulators aid in preventing electrical shocks resulting from electrostatic fields. Electrostatic precipitators are also another great applications of high voltage electrostatic fields, which efficiently reduces the atmospheric levels of airborne dust and other impurities.
The production of high voltage electrostatic machines can be done using both AC and DC electric activities. DC voltage electric machines produce an electrical field that is proportional to the voltage and current, whereas AC electric machines produce an electrical field that is proportional to the voltage, current and frequency.
In the high voltage electrostatic field, which is mainly used in industry and research purposes, particles are released from the fluid source into the atmosphere and are subsequently brought under control by the electrostatic field. As the particles approach the charged plates, a repulsive force is created, causing the particles to be deflected away from the charged plates. The force of repulsion is proportional to the charge of the particles. The bigger the charge, the bigger the repulsion force. It is also conditional on the electric field strength and distance that the particles are exposed to the electric field. When the electric field strength is proportional to the voltage and diffused to enormous surface area of the device, it can generate a great amount of force to repel the particles away.
The attraction forces between particles and the electric field depend on the size, mass and charge of the particles, and on the electric field strength (the electrostatic field intensity). When there is an appropriate balance between attraction and repulsion forces, the particle trajectory can be manipulated or controlled by the electric field.
High voltage electrostatic fields are also used in applications such as triboelectric ionization methods. Triboelectric ionization techniques use an electrostatic field to induce triboelectric charging on droplets to induce ionization. Triboelectric ionization involves the use of an electric field to induce generation of triboelectric charges on droplets and then ionization effects due to frictional forces between the droplets and particles.
High voltage electrostatic fields can also be used in electrohydrodynamic atomization effect, which is the process of atomizing liquid into fine droplet form. In this process, the electric field generates an electro-viscosity force that moves the droplet’s surface material (similar to liquid) away from the field. This is then followed by droplet’s breakup due to an interaction of electro-viscosity force and gravity.
Applications of high voltage electrostatic fields are vast, ranging from electrical systems, medical, components of electronic devices and food technologies. The electrostatic field has significant effects on industry-level processes, which include reducing energy consumption, increasing production output, and ensuring food quality and safety. Therefore high voltage electrostatic fields continues to be an amazing asset in todays world.
