CTX Type Square Zero-sequence Current Transformer

Purchase quality CTX type square zero-sequence current transformer from Comewill, a professional manufacturer in China. 

The core function of Comewill durable CTX type square zero-sequence current transformer is to capture the zero sequence component of the current - the sum of the three-phase currents, also known as the "neutral line current" in the industry, because this part of the current flows in the neutral conductor of the three-phase system. For procurement scenarios with ground fault detection requirements, its targeted design makes protection more accurate and is a key procurement choice to ensure electrical system stability.

In practical use, CTX type square zero-sequence current transformer will work in conjunction with relay protection devices or signal systems. When zero sequence grounding current occurs in the power system (such as electric shock or leakage fault in the circuit), the secondary side of the transformer will immediately output the corresponding zero sequence current, triggering the action of related equipment on the secondary line, such as cutting off the power supply, issuing alarm signals, etc., to quickly achieve protection and monitoring functions. This reliable linkage performance makes it a priority consideration for the purchaser when selecting safety protection equipment.

Easy to install

When installing, simply place it on the neutral conductor of the three-phase system to output a signal proportional to the zero sequence current component. Even if the fault current is small, it can accurately detect grounding faults, effectively avoiding equipment damage due to faults and significantly reducing the risk of electric shock to personnel. Therefore, it 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 or customization needs for quality CTX type square zero-sequence current transformer, or require technical consultation, Welcome (Wenzhou) Electric Co., Ltd. can provide one-stop professional services to fully meet the procurement needs of projects in different fields such as industry, commerce, and infrastructure, and to safeguard your electrical safety.

CTXs (Current Transformers): The Practical Choice for Electrical Protection

CTXs are straightforward, reliable tools made for three-phase electrical systems—here’s why they work so well in real-world setups:

Catches unbalanced current and ground faults: These CTX type square zero-sequence current transformers made in China  measure unbalanced current in three-phase systems (that’s the total of the three phase currents). If fault current leaks from one or more phase conductors to the ground—what’s a ground fault—CTXs spot it immediately.
Super sensitive to small currents: Even tiny bits of ground fault current don’t get past them. That’s vital for keeping equipment from breaking 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 mess with work.
Works with different frequencies: CTX type square 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 weigh 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.
All in all, CTXs are dependable, accurate workhorses. They’re key to protecting electrical systems from ground faults, keeping people and equipment safe—so they’re a go-to for industrial and commercial electrical protection.

Technical Parameter

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Mechanical dimension(for reference only)