News | company news | Jul 20,2026
introduction
Kyrgyzstan is one of the Central Asian countries with abundant hydroelectric resources. Hydroelectric power plants play a crucial role in electricity generation, providing a stable supply for private households, businesses, and industry.
With the continuous development and modernization of the electric power infrastructure, many hydropower projects are facing new requirements:
In modern hydroelectric power plants, reliable measurement of electricity consumption is a fundamental element of their daily operation.
While generators and transformers are the primary equipment in a power plant, many auxiliary electrical systems also require precise current control to ensure stable operation.
This is where current transformers (CTs) come into play.
The MSQ series solid core current transformers offer reliable current measurement solutions in low voltage distribution systems, switchgear and industrial monitoring systems, supporting current ratings from 1 A to 6000 A with a choice of 1 A or 5 A secondary output voltage.
Growing need for reliable electrical monitoring at hydropower facilities in Kyrgyzstan.
Hydroelectric power plants operate under difficult conditions in continuous mode.
A modern hydroelectric power plant, in addition to the main generator system, includes numerous auxiliary electrical systems, such as:
These systems directly impact the reliability and safety of the entire power plant.
It is crucial for engineers and maintenance crews to monitor electrical parameters such as current, load status, and power consumption.
A properly sized hydroelectric current transformer helps provide accurate signals for the following purposes:
The role of power converters in auxiliary systems of hydroelectric power plants.
Every hydroelectric power station requires a reliable auxiliary power source.
Auxiliary systems provide power to critical systems, including:
Typically, these consumers are served through low-voltage distribution boards.
By installing current transformers in these control cabinets, operators can monitor the following:
For such applications, a low-voltage current transformer is required that provides consistent accuracy and reliable installation.
The MSQ series is designed for AC circuits below 720V and supports applications such as current measurement, monitoring and protection of electrical equipment.
These motors are often used in hydroelectric power plants.
Typical motorized devices include:
An unexpected motor overload or an unusual increase in current may cause the following symptoms:
Mounted in the engine control center (ECC), the current converter allows engineers to monitor engine operating conditions and improve maintenance efficiency.
For such tasks, industrial users typically look for:
Switching systems are one of the most common applications of current transformers in power plants.
Auxiliary power distribution systems at hydroelectric power plants typically include:
The current transformer provides measuring signals for:
The MSQ series features a wide internal window design, allowing for wider cables and busbars to be installed, making it suitable for a variety of switchgear and box designs.
This makes MSQ suitable for applications such as:
Why are MSQ series current transformers suitable for hydropower applications?
1.Wide current range for various electrical systems.
Different parts of a hydroelectric power plant may require different current measurement ranges.
Common CT scan findings include:
The MSQ series covers a wide range of rated currents up to 6000 A, thus providing high flexibility for various applications in low-voltage distribution networks.
Whether it is a small auxiliary switchboard or a large industrial distribution system, engineers can select the appropriate aspect ratio of the current transformer based on the actual load requirements.
2.Reliable 5A secondary output for measurement systems.
In many power distribution systems, a 5A secondary output is still a common standard.
The MSQ series supports:
These outputs can be connected to:
electricity meter
energy monitoring devices
control systems
This makes it suitable for traditional electricity metering systems used in many energy projects in Central Asia.
3.Compliance with international standards for current transformers.
Regulatory compliance is an important factor in international energy projects.
Typically, professional electrical engineers specialize in the following areas:
The MSQ series looks like this:
Selected models, including the MSQ-30, MSQ-40 and MSQ-60, are TÜV SÜD certified and tested according to EN61869-1 and EN61869-2 standards.
How to choose a suitable energy converter for hydropower projects?
When selecting a current transformer for a hydroelectric system, engineers must consider several factors.
1.Determine the primary current.
The transformation ratio of the current transformer must correspond to the actual operating current.
Examples:
400 A system → 400/5 A current transformer
1000 A system → 1000/5 A current transformer
2000 A system → 2000/5 A current transformer
2.Select the appropriate accuracy class.
Different tasks require different levels of precision.
For example:
Depending on the model selected, the MSQ series offers 0.5 and 1.0 class options.
3.Confirm the installation method.
Before selecting a current transformer, engineers should check the following points:
In switching systems, a large bore current transformer design can simplify installation.
Typical applications of MSQ in hydroelectric power plants
| hydroelectric system | MSQ application |
| Auxiliary power distribution | Current monitoring |
| MCC engine control cabinet | Measuring engine load |
| Low-voltage switchgear | Energy measurement |
| Distribution panel | energy monitoring |
| Control cabinet | Input power signal |
| industrial enterprises | Electrical protection control |
Conclusion: Supporting sustainable hydropower development in Kyrgyzstan.
As Kyrgyzstan’s hydropower infrastructure continues to develop and modernize, reliable energy supply monitoring solutions are becoming increasingly important.
Current transformers are small but essential components of power plant electrical systems. They transmit precise electrical signals that help engineers monitor plant operations, improve maintenance efficiency, and enhance grid reliability.
For hydroelectric auxiliary systems, low-voltage switchgear and industrial energy monitoring systems, the MSQ series of solid core current transformers offers the following capabilities:
For engineers, engineering, procurement, and construction (EPC) firms, and electrical equipment manufacturers involved in hydropower projects in Kyrgyzstan, selecting the right current transformer is a critical step toward creating safer and more efficient electrical systems.
Compay：HEYI Electrical Co., Ltd.
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975
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