Current transformers help Sri Lanka power project land and run

As energy demand continues to grow in South Asia, Sri Lanka is increasing its investment in power infrastructure.

The Ceylon Electricity Board (CEB), the core management body for the national grid, has recently launched a number of power projects, with a particular demand for high-precision current transformers.

This not only demonstrates the country’s commitment to power safety and reliability but also provides a new platform for power equipment manufacturers to implement these applications.

Project requirements:

large quantities of high-precision transformers

According to CEB’s procurement documents, the project plans to introduce current transformers of different specifications, including:

400/5A Indoor models: 600 units

600/5A Indoor model: 150 units

800/5A Indoor model: 300 units

1000/5A Indoor model: 200 units

These current transformers will be used in Sri Lanka’s power transmission and distribution sectors for current measurement, protection, and metering, which are directly related to the stability and economy of power grid operation.

MSQ series transformers – safe, flexible and adaptable

MSQ series current transformers are suitable for rated voltages below 720V, 50/60Hz AC circuits and are widely used in testing, controlling, displaying and recording the operating status of electrical equipment. They can also be used for relay protection and energy consumption monitoring.

Features and advantages

Wide window design:

can be easily installed on large cables or busbars, convenient installation.

Wide current range:

Rated input current covers 1A ~ 6000A to meet different power distribution needs.

Safe and reliable:

It has excellent insulation performance and flame-retardant shell design, and complies with international standards such as IEC61869-2 and EN60044-1.

Wide range of applicable scenarios: electric motors, lighting systems, HVAC systems, automation control systems, etc.

The MSQ series products are particularly suitable for the large-scale demand for 400/5A to 1000/5A transformers in the Sri Lanka power project, and can meet the power company’s strict requirements for accurate measurement and grid protection.

CP series transformers——high precision, multiple levels of selection

CP series current transformers also comply with IEC and national standards and have multiple accuracy levels (0.2s, 0.5s, 1.0, 3.0, etc.), suitable for demanding energy metering and protection applications.

Technical Highlights

Multiple current ratio coverage:

From 5/5A to 3000/5A, covering current measurement needs at all levels of transmission and distribution systems.

High-precision metering:

Provides a high-precision option of 0.2s level, suitable for electricity bill settlement and refined energy consumption management.

Stable and durable:

It has excellent short-term overload performance, ensuring reliable operation under fault and fluctuation conditions.

Flexible application:

Suitable for various switch cabinets, ring main units and smart grid terminal equipment.

In the Sri Lanka Electricity Board project, the CP series provides strong support for accurate energy metering and relay protection, especially in models ranging from 400/5A to 1000/5A, complementing the MSQ series.

Technical requirements:

safety and precision are equally important

In terms of technical specifications, CEB has strict requirements for current transformers:

The secondary terminals must be equipped with a protective terminal box with a seal to prevent unauthorized access;

Must pass type tests, including temperature rise test, accuracy test, protection level verification, short-time current test, etc.

Products must meet the relevant standards of the Sri Lanka Sustainable Energy Authority.

This means that suppliers must not only ensure the consistency and high precision of their products, but also ensure their safety and reliability in long-term operation.

Application implementation:

Promoting stable operation of the power grid

As a bridge between primary current and secondary current measurement, the application of current transformers in Sri Lanka’s power grid will have a profound impact:

Accurate metering and monitoring:

The instrument transformer will provide a stable current signal for the power system, ensuring fair and transparent energy metering;

Grid protection:

In the event of a short circuit or overload, high-performance transformers can ensure that relay protection devices operate quickly and accurately, reducing the risk of accidents;

Intelligent upgrade:

In line with the construction of future smart grids, these current transformers will provide a solid foundation for the digitalization and automation of Sri Lanka’s power grid.

Significance and Prospects

The implementation of this instrument transformer project is not only a classic example of a Chinese power equipment company expanding into overseas markets, but also a significant step in Sri Lanka’s power grid modernization.

By introducing high-precision current transformers, CEB will further enhance the safety, reliability, and operational efficiency of the power system, providing strong support for local socioeconomic development.

Compay：HEYI Electrical Co., Ltd.

Brand: HEYI/ASCT

Contact: Bethy

E-mail: heyi@heyiele.com             

Tel: 86-13968747975

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