ZCT Type Zero-sequence Current Transformer

As a professional manufacturer in China, Comewill would like to provide you customized ZCT Type Zero-sequence Current Transformer.

Procurement preference

The core function of Comewill durable ZCT type zero-sequence current transformer is to detect unbalanced currents in three-phase power systems - in other words, the sum of the three-phase currents, also known as "neutral line current" in the industry, because this part of the current flows in the neutral conductor of the three-phase system. Its original design intention is to accurately capture this zero sequence component, which can be of great use in monitoring the normal operation of the power system and protecting against faults. It is a key choice for the purchaser to improve the system safety level.

Product Advantages

In practical use, when zero sequence grounding current occurs in the power system, it can perfectly cooperate with relay protection devices and signal systems, triggering the component actions of these devices and achieving stable protection and monitoring functions. And the installation is also very convenient. It can be directly installed on the neutral conductor of the three-phase system without additional circuit modifications, which also makes many buyers feel worry free.

If there is an electric shock accident or leakage fault in the circuit, even if the fault current is very small, this ZCT type zero-sequence current transformer can quickly detect it, and the secondary side will immediately output zero sequence current. Subsequently, the devices connected to the secondary line will activate the protection mechanism, either automatically cutting off the power supply to prevent the fault from expanding; Either issue an alarm signal to remind staff to handle it in a timely manner, which can not only avoid damage to electrical equipment, but also greatly reduce the risk of electric shock to personnel.

Because of these practical advantages, ZCT type zero-sequence current transformer is a high-frequency purchased safety protection equipment in power distribution systems, motor control centers, and other electrical devices that are prone to grounding faults. If you have bulk procurement needs for ZCT type zero sequence current transformers, or need to customize parameters or consult technical questions, Welcome (Wenzhou) Electric Co., Ltd. can provide one-stop professional services to fully meet the procurement needs of different fields, allowing you to buy and use with peace of mind.

ZCT (Zero Current Transformer): Practical Perks for Real-World Use

ZCTs are no-fuss, reliable tools built for three-phase electrical systems—here’s what makes them stand out in actual setups:

Finds unbalanced current and ground faults: These units are made to measure unbalanced current in three-phase systems (that’s the total of the three phase currents). So if fault current leaks from one or more phase conductors to the ground—what’s a ground fault—ZCTs pick it up right away.
Super sensitive to small currents: Even tiny traces of ground fault current don’t slip by. That’s key for keeping equipment from breaking down and protecting workers from electric shock.
Stays accurate, even with interference: They give precise readings of the current’s zero-sequence component, even when there’s lots of electrical noise or interference messing with the system. No spotty data when things get noisy.
Installs easy, no downtime: Just wrap them around the neutral conductor of a three-phase system. No need to cut the circuit or shut down power to the load—setup is quick and doesn’t disrupt work.
Works with different frequencies: ZCT type zero-sequence current transformer runs from 50Hz to 400Hz, covering most common electrical setups. Whether it’s a standard industrial system or something more specialized, they fit right in.
Won’t bog down your system: They have low burden, so they don’t add extra strain to the circuit. And they won’t throw off the accuracy of other measurement tools you’re using.

Technical Parameter

Dimensions

Mechanical dimension(for reference only)