Current Transformer--Maike Magnetics

RF transformer is to achieve the main transformation, coupling and impedance matching of signals in the RF (Radio Frequency) circuit. The following are the main functions of RF transformer.

1. Transformation effect: RF transformers can be used to transform the voltage or current level of signals. By adjusting the ratio of turns on different windings of the transformer, the signal can be stepped up or down to adapt to different RF circuit requirements.

2. Coupling effect: RF transformers can be used to achieve signal coupling and transmission. It can transmit signals from one circuit to another, realizing energy transfer and information transfer between different circuits.

3. Impedance matching: RF transformers can be used to achieve impedance matching to ensure maximum power transfer of signals between circuits. By adjusting the transformer's turn ratio and winding design, impedance matching between the signal source and load can be achieved to minimize signal reflections and losses.

4. Filtering and frequency selection: RF transformers can be used to implement frequency selection and filtering functions. Through the specific design and parameter selection of the transformer, selective transmission and filtering of signals within a specific frequency range can be achieved to meet the frequency selection requirements of the radio frequency circuit.

In general, RF transformers play an important role in RF circuits and are mainly used for functions such as voltage transformation, coupling, impedance matching, and filtering. They are one of the key components for realizing radio frequency signal transmission, conversion and processing, and are widely used in radio frequency applications such as communication systems, radio equipment, broadcasting, radar, and antenna systems.

RF transformer is to achieve the main transformation, coupling and impedance matching of signals in the RF (Radio Frequency) circuit. The following are the main functions of RF transformer.

1. Transformation effect: RF transformers can be used to transform the voltage or current level of signals. By adjusting the ratio of turns on different windings of the transformer, the signal can be stepped up or down to adapt to different RF circuit requirements.

2. Coupling effect: RF transformers can be used to achieve signal coupling and transmission. It can transmit signals from one circuit to another, realizing energy transfer and information transfer between different circuits.

3. Impedance matching: RF transformers can be used to achieve impedance matching to ensure maximum power transfer of signals between circuits. By adjusting the transformer's turn ratio and winding design, impedance matching between the signal source and load can be achieved to minimize signal reflections and losses.

4. Filtering and frequency selection: RF transformers can be used to implement frequency selection and filtering functions. Through the specific design and parameter selection of the transformer, selective transmission and filtering of signals within a specific frequency range can be achieved to meet the frequency selection requirements of the radio frequency circuit.

In general, RF transformers play an important role in RF circuits and are mainly used for functions such as voltage transformation, coupling, impedance matching, and filtering. They are one of the key components for realizing radio frequency signal transmission, conversion and processing, and are widely used in radio frequency applications such as communication systems, radio equipment, broadcasting, radar, and antenna systems.

MAIKE is specialized in the design and manufacture of high-quality customized planar transformers and inductors. The factory is based in Mianyang which is the only National Science & Technology city in China and is strategically placed to service the global electronics market.
We design and manufacture for a variety of end-user applications ranging from Welding to Aerospace & Automotive & Battery Charging etc.
The planar transformer is a transformer with high frequency, low profile, small height, and high operating frequency.

Compared with conventional transformers, the size of the magnetic core of planar transformers is greatly reduced, especially when the height is reduced the most. This feature is very attractive in power supply equipment where space is strictly limited, making it the preferred magnetic component in many power supply equipment. The structural advantages of planar transformers also bring many advantages to its electrical characteristics: high power density, high efficiency, low leakage inductance, good heat dissipation, and low cost.

Key Features--

(1) High current density. The wires of a planar transformer are actually planar conductors, so the current density is high.

(2) High efficiency. The efficiency can reach 98%~99%.

(3) Low leakage inductance. Approximately 0.2% of the primary inductance.

(4) Good heat conduction. The hot aisle distance is short and the temperature rise is low.

(5) Low EMI radiation. Good core shielding can keep radiation to a very low level.

(6) Small size. The use of a small magnetic core can reduce the size accordingly.

(7) The parameters have good repeatability. Because the winding structure is fixed and easy to pre-process, the parameters are stable.

(8) Wide operating frequency range. The frequency can be from 50kHz to 2MHz.

(9) Wide operating temperature range. The working temperature is -40 130.

(10) Good insulation. The planar transformer is composed of overlapping conductive circuits and insulating sheets, thereby ensuring up to 4 kV insulation isolation between windings, primary-secondary and secondary-secondary.

Product description

Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard



technical parameter

Temperature -5 40

Relative humidity 80%

Rated Primary Current 5-5000A 5A,1A

Rated secondary current 5A 1A

Accuracy Class 0.05S
Allow long-term work under the rated current; More than120A across the core.



Precautions

The current of standard CT and tested CT must be the same in CT calibration.

Follow the given wiring diagram strictly.

Test whether the load box is accurate or not before calibrating the transformer.

Forbid secondary winding opening during the calibration.

Select demagnetization before calibration.The wiring diagram is shown in figure 5.

Short out the secondary winding before cutting off the power when the demagnetization is finished.

Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.

Current transformer.

We are one of the leading manufacturer of all types cts of any ratio. We manufacture both outdoor and indoor types. We manufacture both resin cast & oil cooled cts

As per mutual discussion

We have emerged as the foremost trader and supplier of a comprehensive assortment of potential transformers. These transformers are extensively used for billing industrial clients or utility companies. Our high grade transformers are procured from the trusted vendors of the industry as per the set global norms. Manufactured using optimum quality raw material and latest technology at vendors’ end, the offered range is highly durable in nature. Optimum performance, durability and corrosion resistance are some of the salient features of our offered transformers that are highly valued by clients.

Specifications:
Potential transformers up to 400kv class

As per mutual discussion

These accessories are used by switchgear industry for manufacture of switchgear panel for industries and residential.