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Residual Current Sensor
Flexible Rogowski coil
Split Core Current Transformer
Current Transformer
Three phase CT
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Indoor current transformer
Outdoor current transformer
Indoor voltage transformer
Outdoor voltage transformer
Protection 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 meter
Transformer
Others
Digital Meter
digital current meter
COS meter
Power_meter
Energy meter
Combined meter
Multifunction meter
Frequency meter
digital voltage meter
Transducers
Insulator
SE Type
SM Type
ASM Type
AB Type
JYZ Type
JYZ Type
MNS Type
LY Type
C Type
CT Type
CJ/CB
EL Type
DL Type
C/GP/L
HC Type
PMJ Type
GCK Type
PMJ Type
PMJ-N Type
XP
ZMJ Type
SGR Type
AMJ Type
Inverter
Controller
Voltage Stabilizer
SBW/DBW Automatic compensated power voltage stabilizer
SBW-F Sub-tone automatic compensation power voltage stabilizer
SVR Automatic AC home voltage stabilizer
SVC/TND single-phase high-precision automatic AC voltage stabilizer
TSD wall-mounted automatic AC voltage regulator
SVC/TNS three-phase high-precision automatic AC voltage stabilizer
Meter Socket
Smart Circuit Breaker
Case
Case Example
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What is the difference between low voltage transformer and high voltage transformer?
Principle of voltage transformer
Are open-type current transformers good? What are the disadvantages of open-type current transformer
Are open-type current transformers good? What are the disadvantages of open-type current transforme
How to install current transformer?
How does a Hall current sensor work?
How to use Rogowski coil?
The difference between Rogowski coil and ordinary current transformer?
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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
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 meter
Transformer
Others
Digital Meter
digital current meter
COS meter
Power_meter
Energy meter
Combined meter
Multifunction meter
Frequency meter
digital voltage meter
Transducers
Insulator
SE Type
SM Type
ASM Type
AB Type
JYZ Type
JYZ Type
MNS Type
LY Type
C Type
CT Type
CJ/CB
EL Type
DL Type
C/GP/L
HC Type
PMJ Type
GCK Type
PMJ Type
PMJ-N Type
XP
ZMJ Type
SGR Type
AMJ Type
Inverter
Controller
Voltage Stabilizer
SBW/DBW Automatic compensated power voltage stabilizer
SBW-F Sub-tone automatic compensation power voltage stabilizer
SVR Automatic AC home voltage stabilizer
SVC/TND single-phase high-precision automatic AC voltage stabilizer
TSD wall-mounted automatic AC voltage regulator
SVC/TNS three-phase high-precision automatic AC voltage stabilizer
Meter Socket
Smart Circuit Breaker
Case
Case Example
Download
About Us
Contact Us
Contact Us
What is the difference between low voltage transformer and high voltage transformer?
Principle of voltage transformer
Are open-type current transformers good? What are the disadvantages of open-type current transformer
Are open-type current transformers good? What are the disadvantages of open-type current transforme
How to install current transformer?
How does a Hall current sensor work?
How to use Rogowski coil?
The difference between Rogowski coil and ordinary current transformer?
News
Company News
Industry News
Feedback
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News
Company News
Industry News
How do three-phase current transformers work?
Jan 25, 2024
01-25
2024
Some knowledge about HEYI three-phase current transformer
How does a Hall current sensor work?
Jan 13, 2024
01-13
2024
Why does the current transformer make abnormal noise?
Jan 10, 2024
01-10
2024
IIEE 48th ANC and 3E XPO 2023 in Metro Manila
Dec 04, 2023
12-04
2023
Team building activities - let's go rafting together
Jul 06, 2022
07-06
2022
HEYI Electric Co., Ltd. organizes team building activities from time to time. This time, everyone goes to passion drifting together.
World Environment Day
Jun 05, 2022
06-05
2022
Protect the earth with the power of gathering small streams into rivers and seas.
Dragon Boat Festival
Jun 03, 2022
06-03
2022
The Dragon Boat Festival is a very popular folk festival in China.
Happy Children's Day
Jun 01, 2022
06-01
2022
Forget all unhappiness and boredom, give the remaining childlike innocence a holiday, and enjoy a spiritual massage.
World No Tobacco Day
May 31, 2022
05-31
2022
HEYI Electric's message: A hot summer, a cool place. A smoke-free environment,a healthy body.
World Earth Day.
Apr 18, 2022
04-18
2022
Energy saving and emission reduction action, start!!
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How do three-phase current transformers work?
Jan .25.2024
Some knowledge about HEYI three-phase current transformer
Why current transformer is used
Jan .17.2024
How does a Hall current sensor work?
Jan .13.2024
Why does the current transformer make abnormal noise?
Jan .10.2024