AC resonant measurement
Choosing the appropriate design for the resonant test requires a lot of experience. Resonant Test Systems (RTS) are internationally important, especially in the measurement of capacitive AC objects. The resonance measurement is done through an electronic object that has XL (RTS) = […]
Choosing the appropriate design for the resonant test requires a lot of experience. Resonant Test Systems (RTS) are internationally important, especially in the measurement of capacitive AC objects. The resonance measurement is done through an electronic object that has XL (RTS) = XC. The achievement of resonance leads to the realization of an RTS supply that addresses the loss and disturbing aspects of the test item.
The variable inductance resonant uses a single transformer that has a variable gap unit known as an HV reactor. The reactor works as a single phase step-up transformer known as a drive transformer. The variable frequency resonant uses a single, winding transformer that has a fixed inductance known as an HV reactor. The reactor is powered through the single-phase step-up transformer known as the Excitation Transformer.
There is the in situ and laboratory type of RTS. But, variable frequency sets work properly only with the reactor which is cylinder type. Lower power systems are especially important in mobile testing via variable inductors found in freight trucks, shipping containers, or sprinter vans. The system effectively utilizes the benefit of the tank type reactor that the HV bushing has. Higher power and higher voltage elements use VF systems because VF reactors are relatively small and lighter than VL reactors. Cascading and paralleling VF reactors is very easy, for many voltage and current configurations.
Charge determination is very important for all categories of test items using the RTS. The test solution is very important if the data being loaded is very important. The custom design of the RTS is important to ensure effective load testing. All power requirements are increased by utilizing the output voltage taps that are part of the reactors for voltage, current size, and cylinder type. Current sizing is important for both series and parallel connection. The power requirement is any; the real power for the electronic element, or the reactive power emanating from the reactor.
Potential difference measurements are very critical on high voltage elements. Therefore, proper precautions should be taken in the design process, to help users successfully measure the project after its completion. Proper potential difference measurements adhere to several factors. These factors are; inclusion of isolation transformer for the incoming line, LV filters to manage the incoming noise, CLC filters for the RTS output to improve the damping of interference and line noise. The sizing of the precharge over the total capacitive load is also an important feature of potential difference tests.
Test object terminations are crucial during measurements of high voltage and medium voltage cables. The purpose of RTS sizing is to account for termination type losses. If the termination of high voltage cables is through a water termination, a large resistive power generation occurs. The resistive heat supply is through the exciter or regulator. The termination and also the challenges related to the voltage connection are very important in the GIS field. GIS providers are often important during the design phase, with the intention of integrating the Oil-GIS reactor and Air-GIS bushings. Various test solutions are available for resonant systems. The solution even involves a standard AC dielectric that has basic buffer reactors to minimize primary power needs.