Transformer oil level meter

1. Working Principle

• Float or float type: This is the most common type. The oil level gauge has an internal float or floats that move up and down as the oil level changes. The movement of the float is transmitted through a mechanical transmission (e.g., gears, linkage) to a pointer or dial, which indicates the oil level.
• magnetically coupled: Some advanced oil level gauges use magnetic coupling technology, where the float and pointer transfer motion through magnetic force, avoiding mechanical contact and improving reliability and sealing.
• electronic: The electronic oil level gauge detects the oil level by means of a sensor and converts the signal into a digital or analog output, allowing remote monitoring and alarming.

2. typology

• Pointer Oil Level Gauge: Indicates the oil level by means of a pointer on a dial, suitable for visual reading on site.
• Glass Tube Oil Level Gauge: Direct observation of the oil level through a transparent glass tube is simple and intuitive, but may result in oil spraying out due to high oil temperature.
• Magnetic Oil Level Gauge: Magnetic components are used to realize oil level indication, which has high reliability and anti-interference ability.
• Electronic Oil Level Gauge: Equipped with digital display and remote monitoring function, it is suitable for smart grid and automated monitoring system.

3. Technical characteristics

• Measurement range: Normally suitable for oil temperatures ranging from -40°C to +120°C.
• protection class: Generally IP65 or IP66, which can effectively protect against dust and water.
• Alarm function: Some of the oil level gauges are equipped with a high and low oil level alarm function that signals when the oil level is outside the set range.
• compatibility: Compatible with a wide range of transformer designs and supports customized mounting flanges.

4. application environment

• Indoor and outdoor: Suitable for a wide range of climatic conditions, including tropical and marine corrosive environments.
• New installations and retrofits: Can be used both for the installation of new transformers and for the retrofitting of existing transformers.

5. significance

• Insulation and heat dissipation: The main function of transformer oil is insulation and heat dissipation. Insufficient oil level will lead to degradation of insulation performance and may even burn the transformer.
• Security monitoring: Oil leakage, abnormal oil level and other problems can be detected in time through the oil level meter to ensure the safe operation of the transformer.

6. Selection Advice

• Selection according to transformer type: Different types of transformers (e.g., oil-immersed, capsule reservoirs, etc.) require different types of oil level gauges.
• Consideration of environmental factors: If the transformer is installed in a harsh environment, select an oil level gauge with a high level of protection and corrosion resistance.
• functional requirement: If remote monitoring and automated control is required, an electronic oil level gauge is recommended.

1. Brand & Market Reputation

• Internationally recognized brands: The brand has mature technology and a wide range of application cases in the field of transformer oil level meter. The series of oil level gauges are waterproof and easy to read.
• Domestic Famous Brands: The company has also performed well in terms of product quality and after-sales service.

2. Product quality and technical performance

• Materials and Processes: High-quality oil level gauges are usually made of corrosion-resistant materials, such as stainless steel or aluminum alloy, and undergo strict quality testing. It has the advantages of being strong, crack-proof, shock-proof and leak-proof.
• Technical characteristics: Some manufacturers offer electronic oil level meters with remote monitoring, alarm functions and digital interfaces for smart grid applications.

3. Price and value for money

• Price range: Prices vary widely depending on product type and brand. Electronic oil level gauges may be more expensive.
• quality-price ratio: It is recommended to compare the product specifications, performance and after-sales service of different manufacturers to choose a cost-effective product.

4. Service

• Technical Support: Select manufacturers that provide technical support and after-sales service, such as product installation guidance, maintenance services.
• Testimonials: Refer to reviews and feedback from other customers to understand the manufacturer's reputation and service quality.

5. Manufacturer's qualifications and certifications

• industry standard: Ensure that the manufacturer's products comply with national or international standards, such as GB1161-90.
• accreditation: Choose manufacturers that have passed ISO certification and other quality management system certifications.