USD
EUR
GBP
CAD
AUD
CHF
HKD
JPY
RUB
BRL
CLP
NOK
DKK
SEK
KRW
ILS
MXN
CNY
SAR
SGD
NZD
ARS
INR
COP
AED
Home
Products
Current Transformer
Three phase CT Protection Current Transformer High Voltage Current Transformer
Indoor current transformer Outdoor current transformer Indoor voltage transformer Outdoor voltage transformer
Summation Current Transformer 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
Low Voltage Current Transformer
Residual Current Sensor
Flexible Rogowski coil
Split Core Current Transformer
Current transducer
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
Overvoltage And Undervoltage Protector Digital Meter Insulator Inverter Controller Voltage Stabilizer Meter Socket Smart Circuit Breaker
Case
Case Example
Download
About Us
Contact Us
Contact Us
News
Company News
Industry News
Technical Standard
Feedback

What is the function of current transformer?

Views : 809
Author : Kevin
Update time : 2024-08-09 12:36:57

1) The biggest function of the current transformer is to adjust the current size. In reality, the output current values ​​of most electrical equipment and transmission lines are very large, but the current value that the instrument used to measure the current can withstand is relatively small. Therefore, in order not to damage the measuring instrument, a current transformer is generally use to convert a large current into a small current, which can also better play the role of the measuring instrument in monitoring the current.

2) The current transformer can also provide insulation protection for the instrument operator to prevent high voltage from harming the human body. The protection of the current sensor for personnel is achieve by isolating the measuring personnel from the high voltage in the circuit, which is very necessary for electrical control accessories.

Previous :
Next :
Related News
Read More >>
RECT-66A Extended Range Current Transformer for Reliable Energy Metering in Bolivia RECT-66A Extended Range Current Transformer for Reliable Energy Metering in Bolivia
Jul .01.2026
RECT-66A current transformer supports energy meter installation in Bolivia, industrial power monitoring systems, and Class 0.3 billing accuracy systems for mining, hydro, commercial, and utility metering projects.
Current Transformer for Electrical Panel Retrofit and Power Monitoring in Italy Current Transformer for Electrical Panel Retrofit and Power Monitoring in Italy
Jun .24.2026
HEYI KCT-24 current transformer is designed for electrical panel retrofit, energy meter connection, and power monitoring cabinet applications. Its split core design supports easy installation in Italian low voltage projects.
Current Transformer for Electrical Panels and Power Monitoring in Indonesia Current Transformer for Electrical Panels and Power Monitoring in Indonesia
Jun .17.2026
HEYI MSQ-30 current transformer supports energy meters, industrial power monitoring, low voltage panels, and power monitoring systems in Indonesia with stable current signals.
Current Transformer for Compact Switchgear and DIN Rail Power Monitoring in Russia Current Transformer for Compact Switchgear and DIN Rail Power Monitoring in Russia
Jun .10.2026
HEYI CP series current transformer is designed for compact switchgear, DIN rail current transformer installation, and power monitoring cabinet applications in Russia, offering flexible mounting and reliable low-voltage measurement support.