What should I use with the electric energy meter? Transformer: Current transformer: use for current measurement in high-current circuits, converting large currents into small currents that can be measure by the energy meter. Voltage transformer: use for voltage measurement in high-voltage circuits, converting high voltages into low voltages that can be measure by the energy […]

A split core current transformer (CT) is a current transformers design to be easily install on existing conductors without disconnecting the conductors. The core is design to be split in two, allowing the transformer to be open, place around a conductor, and then close again.   Key Features: Easy to install: It can be install […]

Connection steps of DASN three-phase current transformer and electric energy meter Determine the wiring method: Select the appropriate wiring scheme according to the wiring method of the power system (such as star connection or triangle connection). Connecting the DASN three-phase current transformer: The DASN three-phase current transformer usually has three independent primary windings and secondary […]

How to properly connect a three-phase current transformer？ 1. Safety Precautions De-energize the Circuit: Before working on the electrical system, make sure to disconnect the power supply to avoid electric shock. Use Personal Protective Equipment (PPE): Wear insulated gloves, safety goggles, and other appropriate PPE. Follow Lockout/Tagout Procedures: Ensure the system is properly locked out […]

Application of HK series Split core current transformer  HEYI’s HK series Split core current transformer have shown a wide range of application value in power systems. Its unique openable design makes the installation process extremely convenient, without power outages or disconnections, and can be operated directly on the running line, greatly saving time and cost. […]

HEYI Electric MSQ Series Current Transformers: Global Intelligent Power Management   The MSQ series 0.5S-class current transformers produced by HEYI Electric play a key role in public utilities in countries around the world, and their wide range of applications covers power distribution, energy management, and smart grids. In terms of power distribution, MSQ series transformers […]

Application of HEYI KCT series micro current transformer   HEYI brand of KCT type split core current transformers have been specifically design to be small CT and easy to open and yet maintain the accuracy required for kwh meters. The benefit of a split core current transformers is that it can be place into position […]

Working principle of LZZBJ9-24   First, let’s take a look at the structure of LZZBJ9-24. It is mainly compose of two parts: the primary side and the secondary side. The primary side is located in the high-voltage circuit and is directly connect to the high-voltage power supply; while the secondary side is locate in the […]

About JDZ-35KV   About JDZ-35KV :our JDZ-35KV has stable product performance and can guarantee the continuity of customers’ electricity use to the greatest extent. Fully enclosed epoxy resin casting, used for current measurement and relay protection in AC 50/60 Hz lines of 40.5 kV and below, advanced simulation design technology, rich product lines, various structural […]

About Yueqing HEYI Electric Co., Ltd. Yueqing Heyi Electric Co., Ltd. was establish in 2012. It is a young and flexible manufacturer of current transformers and current sensors. The chief engineer, sales director, and production manager are all members of our family. HEYI is a small family company. Years of hard work to become the […]

Some knowledge about DC current transformers What is a DC current transformer? DC current transformers refers to the mutual inductance used for DC current value conversion. It utilizes the nonlinearity and asymmetry of the core coil when the core is magnetize by DC and AC currents, and converts the large DC current passing through the […]

Introduction to basic knowledge about current transformers A current transformer produces an alternating current in the secondary that is proportional to the current in the primary. By having a known turns ratio, the currents in the primary and secondary are connect, and if the current in the secondary is measure, the current flowing in the […]