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When to use isolation transformer

2026-01-12 23:55:23 mechanical

When to use isolation transformer

Isolation transformer is a special transformer mainly used for electrical isolation and protection of equipment and personnel safety. It is widely used in many situations. The following are some typical situations where isolation transformers are needed.

1. Medical equipment

When to use isolation transformer

Medical equipment has extremely high electrical safety requirements, and isolation transformers can prevent leakage current from causing harm to patients, especially in critical areas such as operating rooms and ICUs.

2. Industrial control system

In industrial environments, isolation transformers can prevent ground loop interference and ensure the stable operation of sensitive equipment such as PLCs and frequency converters.

3. Laboratory and precision instruments

Precision instruments in the laboratory require pure power, and isolation transformers can effectively isolate harmonics and noise in the power grid.

4. Electrical renovation of old buildings

Older buildings may have problems with poor grounding, and an isolation transformer can provide additional safety protection.

5. Temporary power use occasions

In temporary electricity use situations such as construction sites and outdoor activities, isolation transformers can reduce the risk of electric shock.

Application scenariosMain functionTypical power range
medical equipmentPrevent leakage current1-10kVA
industrial controlEliminate ground interference5-50kVA
laboratoryPurify power supply3-15kVA
Building renovationsafe isolation10-100kVA
temporary electricity usePrevent electric shock5-30kVA

Key points for selecting isolation transformers

The following factors need to be considered when selecting an isolation transformer:

ConsiderationsDescription
Power capacityNeed to be greater than 1.2 times the total load power
Input and output voltageMust match existing power and load requirements
Insulation levelMedical equipment requires Class I or Class II
working environmentWaterproof and dustproof required for outdoor use
Certification standardsMust comply with international standards such as IEC/UL

Hot recent technology trends

According to the technical hot spots in the past 10 days, there are the following new trends in the field of isolation transformers:

1.Intelligent isolation transformer: Integrated IoT technology to remotely monitor operating status
2.High frequency isolation technology: Smaller size and higher efficiency
3.Wide input voltage design: Adapt to unstable power grid environment
4.Green environmentally friendly materials: Made of recyclable insulation materials
5.Modular design: Easy to maintain and upgrade

Precautions for safe use

Things to note when using an isolation transformer:

1. Check insulation resistance regularly
2. Avoid overload operation
3. Maintain good ventilation
4. Professional installation and maintenance
5. Pay attention to moisture and dust prevention

Isolation transformers are an important guarantee for electrical safety. Correct selection and use of isolation transformers can effectively prevent electrical accidents and protect the safety of personnel and equipment. With the development of technology, isolation transformers are developing in a smarter and more efficient direction.

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