Rectifier transformer is a power supply equipment designed for rectifier system, its core role is to convert alternating current to direct current, widely used in electrolysis, power traction, electroplating and other fields.
Products
I. Current waveform characteristics
Non-sinusoidal waveform output
Each arm of the rectifier conducts in turn during the cycle, resulting in an output current waveform that is close to an intermittent rectangular waveform rather than a sinusoidal waveform. This waveform contains a large number of harmonic components that may increase eddy current losses.
Harmonic Effects
When using thyristor rectification, the increase in hysteresis angle will aggravate the steepness and harmonic content of the current waveform, requiring special attention to the filtering design.
II. Structure and performance characteristics
Lower utilization rate
Because the secondary conductive time only accounts for a part of the cycle, the utilization rate of rectifier transformer is lower than that of ordinary transformer, resulting in larger volume and weight under the same capacity.
Capacity calculation method
The capacity is the average of the apparent power of the primary and secondary sides (equivalent capacity) rather than the single winding capacity of an ordinary transformer, and the difference is significant especially in scenarios such as half-wave rectification.
High short-circuit dynamic stability requirements
Need to strictly meet the short-circuit dynamic power withstand capacity, the design needs to optimize the winding structure and materials to enhance mechanical strength.
III. Application Scenarios and Adaptability
Wide voltage regulation range
For example, in the aluminum electrolysis scenario, the voltage regulation range can be up to 5%~105%, which needs to be realized by tapping or phase-shifting technology.
High efficiency and low noise
Adopting energy-saving design, low noise operation, and supporting overload operation (e.g. 110% voltage, 40ºC environment).
Multi-discipline Adaptability
Applicable to electrochemical industry (electrolytic aluminum, chlor-alkali), power traction (mining locomotive), DC transmission and other scenarios, to meet the high-current, low-voltage demand.
IV. Difference with ordinary transformers
In addition to the above characteristics, rectifier transformers also need to cope with DC side of the load sudden change (such as motorcycle startup), so the impedance design is larger (about 30% higher than the power transformer), the temperature rise limit value is lower to improve stability.
Company Introduction
Shandong Zhifeng Transformer Co., Ltd. is located in Rainbow Industrial Park, North Caihong Industrial Park, East Second Ring Road, Linqing City, Shandong Province, the famous city of Canal, with convenient transportation and beautiful environment. The company covers an area of 45,000 square meters, is a professional production of 35-110KV a variety of oil-immersed transformers, dry-type transformers, special transformers, grounding transformers, arc-fading coil, reactor, box-type substation, American box variable, all kinds of box variable production, sales, research and development in one of the professional power equipment manufacturing enterprises.
Certification certificate
Frequently asked question
Q: Are you a manufacturer, factory or trading company?
A: Yes, we have been engaged in the development, production and operation of transformers for more than 15 years.
Q: What is your warranty?
A: We offer a 12-month warranty.
Q: Production time?
A: 30 to 45 days or depending on order requirements.
Q: What are your payment terms?
A: T/T, L/C or negotiation.
Q: How does your factory conduct quality control?
A: We carry out 100% QC inspection to ensure that every product is qualified. From raw material to final product manufacturing process, we have more than 10 QC inspections.
Q: Do you have any products in stock?
A: Not normally. All our products are manufactured according to your order quantity.
Q: What does a custom transformer need to provide?
A: Technical drawings and technical specification documents are best, or you can tell us some detailed technical specification dates below "Quote and order required information".
Q: Can I have a catalogue and price list for my MOQ trial order?
A: All of our products are made in China or displayed on the official website, you are always welcome to ask us directly for more information.
){kind=link}