Transformer Isolation Articles & Analysis
12 articles found
Low-Frequency DC / Low-Frequency Inverter Design What it means: “Low-frequency inverter” usually refers to a design where DC is converted to AC at the grid frequency (50/60 Hz) through a transformer operating at that same low frequency. In contrast, “high-frequency inverters” convert DC to a high-frequency AC for transformer ...
The current sampling methods for electric meters mainly include the following types, each with its own characteristics and applicable scenarios: 1.Transformer-Sampled Electric Meter · Definition and Principle A transformer-sampled electric meter uses voltage transformers and current transformers to collect the user’s voltage and ...
However, there is a complex system in place that allows for the efficient distribution of electrical power, and one key component of this system is the distribution transformer. What is a Distribution Transformer? A distribution transformer is a type of electrical transformer that is used in power distribution systems to ...
ByProtrafo
The power supply of telephone plants and FM/TV relay stations has always entailed numerous problems and specific needs which are difficult to meet, among them: to assure the safety of operators working on the plants, according to the law to assure continuity of operation to the plants to create a compact distribution system for all loads usually present in relay stations to limit the costs ...
The Power Quality problems of an electrical distribution network are often generated locally within the structures and can depend on various situations, such as, for example, construction works, switching on high loads, faulty distribution components and particular basic electrical disturbances. Furthermore, external causes such as atmospheric events (hurricanes, lightning, snow, ice and ...
In particular, the protection is implemented through a specially designed surge suppression circuit which includes a shielded isolation transformer, filters and a Voltage Stabilization section capable of compensating for an input variation of ±25%. These particular IREM Line Conditioners of the Steroguard range guarantee a high level of Power Quality by ...
Power inverter is connected to the low-pass filter and isolation transformer. It can filter out the harmonic below N-1, where N is trigger pulses flow of current period. ...
ByGoHz Inc
High–frequency transformer isolated DC–to–DC converters are widely used for power conversion in alternate energy and other applications. ...
Based on a systematic classification of dc source to utility interfacing schemes, this paper presents six major interfacing schemes for connecting fuel cells to a single-phase utility line using high-frequency transformer isolated power converters. The operation, advantages and disadvantages are discussed for each scheme with examples and operating waveforms. ...
A new three-phase four-wire DSTATCOM (distribution static compensator) is proposed for power quality improvement in the distribution system. The DSTATCOM is based on a star/hexagon transformer and three-leg VSC (voltage source converter). It compensates harmonic current, reactive power and balances the load along with neutral current compensation. Each of the three single phase transformers has ...
This paper presents an investigation on a voltage regulator for parallel operated isolated asynchronous generators (IAGs) supplying three-phase four-wire loads driven by constant speed prime mover like diesel engine, bio-mass, gasoline, etc. ...
In this paper, an analysis and design of a high-frequency transformer isolated single-phase buck-boost AC–DC Cuk converter is presented for both discontinuous and continuous conduction modes (DCM and CCM) of operation. ...