Isolation Transformer- AISITE

Product Introduction

Isolation transformers are mainly used to convert the voltage of the input power supply to the voltage of the output power supply, while protecting the terminal equipment from power supply interference and electric shock hazards.

Isolation Transformer key parameters

Features and Advantages
A notable feature of the isolation transformer is that its output and input are completely electrically isolated, which can not only effectively filter the power supply voltage supplied by the power grid and provide pure power for electrical equipment, but also prevent the risk of electric shock that may occur due to accidental contact with live parts or insulation damage.

1. It can improve electrical safety. The isolation transformer can isolate the electrical connection between the main power supply and the load, effectively avoiding safety problems such as leakage and electric shock caused by grounding faults;
2. It can reduce electrical interference. The isolation transformer can eliminate the interference caused by the load equipment and ensure the normal operation of other electrical equipment;
3. It can improve the quality of signal transmission. The isolation transformer can convert the signal into an ordinary electrical signal, which is not affected by interference, thereby improving the quality of signal transmission;
4. It can enhance the comprehensive performance of the equipment. The isolation transformer can effectively prevent the expansion of electrical faults and improve the reliability and stability of the equipment.

Precautions in Use
When using an isolation transformer, avoid connecting the PE line (protective grounding line) on its secondary side, because such a connection will lose the core function of the isolation transformer - isolation. The original intention of the isolation transformer is to ensure the electrical isolation of the secondary side from the primary side (main power side), so as to prevent voltage fluctuations or electric shock hazards caused by faults elsewhere from being transmitted to the secondary side equipment through the PE line. This is also a potential defect of the TN grounding system, because the TN system relies on the PE line to achieve rapid grounding of the fault current, but in the application of the isolation transformer, such an approach may destroy the isolation effect.
When it is necessary to power one electrical device, it is recommended to use a dedicated isolation transformer. If it is necessary to power multiple devices, it is advisable to select an isolation transformer with multiple secondary windings to ensure that each device can obtain independent isolation protection. When conditions are limited and only one secondary winding of the isolation transformer can be used to power two electrical devices, special attention must be paid to safety measures. At this time, the metal casings of the two electrical devices should be connected through an insulated wire, and ensure that the wire is not connected to any grounding system. This connection method is called "ungrounded equipotential bonding". The purpose of this measure is to eliminate the risk of electric shock caused by equipment "touching the shell" (i.e. the equipment casing comes into contact with live parts) and power supplies of different phases, thereby ensuring safe use of electricity.

Maintenance and Care of Isolation Transformers
After long-term use, isolation transformers will have some faults and damages, such as insulation aging, short circuit, leakage and other problems. Therefore, the maintenance and care of isolation transformers is very important, which can extend the service life of the equipment and ensure the safety of the equipment.
1. Regular inspection and inspection: Isolation transformers should be inspected and inspected regularly, and abnormal conditions should be handled and repaired in time.
2. Keep clean and dry: Isolation transformers should be kept clean and dry to avoid the influence of dirt and moisture on the equipment.
3. Insulation testing and maintenance: Isolation transformers should be regularly tested and repaired to ensure insulation strength and safety.
4. Prevent overload and short circuit: Isolation transformers should prevent overload and short circuit to avoid equipment damage and safety accidents.

Isolation Transformer Application 

Medical equipment: Scenarios where leakage current must be eliminated for operating room equipment, monitors, etc.
Laboratory instruments: Precision measurement equipment must be isolated from grid interference (such as harmonics and surges).
Photovoltaic systems: Isolate photovoltaic arrays from the grid to prevent DC components from invading the AC side.
Humid environments: Power supply safety protection for places such as swimming pools and ships.

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