The capacity of the current transformer is mainly based on the secondary use of the current transformer; Generally speaking, the secondary line is long, and the required capacity is larger; Secondary line; The capacity of the current transformer is generally 5VA-50VA, for short lines; The selection of current transformer capacity should be combined with actual […]

Type AC or type A rcd, com conforms to the standard IEC/ EN 61008 and IEC/EN 610091), applicable to Most types of families and the like The application. However, the growingUsing power electronics technology Leakage current can occur in household appliances with a ground connection . In both have waveforms with high DC com components […]

 HYCA series leakage transformer      The international standard “IEC62752-2016” was officially release in 2016, and the functions and roles of IC-CPD are specifi in the standard. In 2018, the “‌IEC 62955” standard was released. In both standards, Type B residual current detection has become an important function. Residual current detection also becomes a mode […]

HYCA Current Transformer   HYCA is an AC DC leakage current sensor (RCD/RCM sensor) with pin/cable installation. It has the characteristics of high sensitivity, correct measurement, small size and compact/integration design. The residual current monitor can set separately for AC and DC leakage. When leakage current is detect, an alarm signal is generate, and the […]

How does an RCM work?   In circuit monitoring, all monitored circuit conductors (except the PE conductor) need to pass through the measuring current transformer. Under normal circumstances, the sum of the currents in these conductors is zero, so no voltage is induce in the measuring current transformer. However, if a fault current (IΔ) appears […]

What is the difference between CT in measurement and protection?   Current transformers (CTs) are widely use in power systems for measurement and protection, but their functions and requirements in these two applications are different. Here are the main differences: 1. Current transformer for measurement Main function: Convert large currents into smaller currents in proportion […]

How to deal with secondary circuit failure of current transformer?    Since only a very small impedance is allow in the secondary circuit of the current transformer, it is close to a short-circuit state under normal working conditions, with extremely small sound, and is generally consider silent. Current transformer failures are often accompanied by sound […]

What is the difference between a split core body and a solid body?   Split core and solid body current transformers are two different types of current transformers, which have some differences in structure and application. Structural differences: Split core current transformer: Its core is separated and can be easily installed around the terminated power […]

HEYI Electrical UK series split-core current transformer    HEYI Electric Company’s newly launched UK series split-core current transformers represent our latest technological breakthrough in the field of current transformers. UK series products use high-precision split core technology to ensure almost no errors during the production process. This high-precision segmentation technology not only improves the measurement […]

Current transformer installation precautions Things to note when installing current transformers in low-voltage distribution cabinets 1 When the current transformer is running, the secondary side is not allowed to be open. 2 The magnetic potential I1N1 of the current transformer’s primary measured current generates a magnetic flux Φ1 in the iron core; 3. The magnetic […]

 Distribution cabinet introduction   A power distribution cabinet refers to an electrical product that plays the role of switching, controlling or protecting in the power generation, transmission, distribution, power conversion and consumption of the power system, with a voltage level of 3.6kV~550kV, mainly including high-voltage circuit breakers, high-voltage disconnectors and grounding switches, high-voltage load switches, […]

The role of current transformers on low-voltage outgoing circuits   Distribution cabinets refer to electrical products used for power generation, transmission, distribution, power conversion and consumption in power systems, which play the role of switching, control or protection, and the voltage level is 3.6kV~550kV. They mainly include high-voltage circuit breakers, high-voltage disconnectors and grounding switches, […]