Asct Current Transformer
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Residual Current Sensor
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Combined Current Transformer Loading-Type Current transformer Bus Bar-Type Current transformer Pin-type Current Transformer Current-Voltage Transformer DC Immune CT Voltage Power Transformer Zero-Sequence Current Transformer Special Current Transformer
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Asct Current Transformer

Home
Products
Residual Current Sensor
Flexible Rogowski coil
Split Core Current Transformer
Current Transformer
Three phase CT
High Voltage Current Transformer
Indoor current transformer Outdoor current transformer Indoor voltage transformer Outdoor voltage transformer
Protection Current Transformer
Summation Current Transformer
Current transducer
Mini Current Transformer
Combined Current Transformer
Loading-Type Current transformer
Bus Bar-Type Current transformer
Pin-type Current Transformer
Current-Voltage Transformer
DC Immune CT
Voltage Power Transformer
Zero-Sequence Current Transformer
Special Current Transformer
Current Sensor
Closed Loop Hall Effect Current Sensor
DC leakage current sensor
Hall Effect Current Transmitter
Hall Effect Voltage Sensor & Transmitter
Open Loop Hall Effect Current Sensor
Shunt
Zero Sequence CT
Indicator lamp
Transformer
Others
Digital Meter
Insulator
Inverter
Controller
Voltage Stabilizer
Meter Socket
Smart Circuit Breaker
Overvoltage And Undervoltage Protector
Case
Case Example
Download
About Us
Contact Us
Contact Us
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Industry News
Technical Standard
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News

Company News

Industry News

Technical Standard

How do three-phase current transformers work?

How do three-phase current transformers work?

Jan 25, 2024

01-252024

Some knowledge about HEYI three-phase current transformer
Why current transformer is used

Why current transformer is used

Jan 17, 2024

01-172024

How does a Hall current sensor work?

How does a Hall current sensor work?

Jan 13, 2024

01-132024

Why does the current transformer make abnormal noise?

Why does the current transformer make abnormal noise?

Jan 10, 2024

01-102024

IIEE 48th ANC and 3E XPO 2023 in Metro Manila

IIEE 48th ANC and 3E XPO 2023 in Metro Manila

Dec 04, 2023

12-042023

How to choose the most suitable residual current device?

How to choose the most suitable residual current device?

Nov 25, 2023

11-252023

Residual current device HYCA RCD by HEYI.With a broad temp range, streamlined design, and digital calculation, it sets new standards.
Are Your Charging Piles Truly Secure?

Are Your Charging Piles Truly Secure?

Nov 25, 2023

11-252023

RCD: Unveiling Safety in Every Charge. Explore the Superiority of Type B, especially HEYI conpany’s HYCA, Redefining Charging Pile Security.
What does 5p10 5P20 mean in a current transformer?

What does 5p10 5P20 mean in a current transformer?

Aug 24, 2022

08-242022

Why is a current transformer used in a substation?

Why is a current transformer used in a substation?

Aug 24, 2022

08-242022

Team building activities - let's go rafting together

Team building activities - let's go rafting together

Jul 06, 2022

07-062022

HEYI Electric Co., Ltd. organizes team building activities from time to time. This time, everyone goes to passion drifting together.
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SDH series Window Type Current Transformer - the precise core of global power monitoring and energy efficiency management SDH series Window Type Current Transformer - the precise core of global power monitoring and energy efficiency management
Apr .23.2026
The SDH series window type current transformer, as a high-precision component for low voltage and energy meters, is compatible with global power frequencies with a single model, ensuring energy monitoring and energy efficiency management.
Why is this residual current sensor an ideal current detection component for motor drive and industrial automation fields Why is this residual current sensor an ideal current detection component for motor drive and industrial automation fields
Apr .21.2026
HYCA leakage protection residual current sensor (current sensor) offers full current sensitivity and easy integration, outperforming hall sensors—ideal for motor drive and industrial automation.
Application scenarios of CT for motor protection relay in power generation, shipbuilding, and heavy industry industries Application scenarios of CT for motor protection relay in power generation, shipbuilding, and heavy industry industries
Apr .17.2026
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