Custom Zero Phase Current Transformer
Description
Technical Parameters
Providing with quality and standard customer-made electronic and passive components custom zero phase current transformer and solution products, Fullstar Electronics is a leading custom zero phase current transformer manufacturer and supplier in China. welcome to wholesale electronics custom zero phase current transformer from our factory.
Zero Phase Current Transformer (ZCT)
Product Overview
A Zero Phase Current Transformer (ZCT) is a specialized current transformer designed to detect zero-sequence current in electrical power systems. It is mainly used for ground fault protection, earth leakage detection, and insulation fault monitoring.
Under normal operating conditions, the vector sum of three-phase currents is approximately zero. When a ground fault or leakage fault occurs, a zero-sequence current is generated. The ZCT detects this abnormal current and provides an output signal to protective relays or monitoring devices for alarm and protection functions.
Product Features
High Sensitivity Detection
Capable of detecting small zero-sequence current changes for reliable earth leakage and ground fault protection.
High Measurement Accuracy
Utilizes high-permeability magnetic core materials to achieve excellent linearity and low measurement error.
Excellent Anti-Interference Performance
Optimized magnetic structure minimizes the influence of external magnetic fields and improves measurement stability.
Fast Response
Suitable for applications requiring rapid fault detection and protection.
Various Structural Designs
Available in through-hole type, split-core type, and rectangular type designs to meet different installation requirements.
Easy Installation
Can be installed around cables or busbars without interrupting the main power circuit.
Applications
Ground fault protection systems
Earth leakage relays (ELR) and residual current protection devices (RCD)
Low-voltage switchgear
Medium and high-voltage switchgear
Industrial power distribution systems
Data center power monitoring
Renewable energy systems (solar PV, energy storage, EV charging systems)
Motor and equipment insulation monitoring
Typical Specifications
| Item | Specification |
|---|---|
| Product Name | Zero Phase Current Transformer |
| Model | ZCT / ZSCT |
| Primary Current | 0.1A to several thousand amperes (customizable) |
| Secondary Output | 1A / 5A / 100mA or customized |
| Accuracy Class | Class 0.5, Class 1.0, etc. |
| Frequency | 50Hz / 60Hz |
| Rated Burden | Customized according to application requirements |
| Operating Temperature | -40°C to +85°C (customizable) |
| Installation Type | Through-core / Split-core / Busbar type |
| Insulation Level |
Designed according to system voltage requirements |
What is the difference between a ZCT and a normal current transformer (CT)?
The main differences are:
| Item | ZCT | Normal CT |
|---|---|---|
| Detection Target | Zero-sequence current | Phase current |
| Main Application | Ground fault and leakage protection | Current measurement and metering |
| Installation Method | All three-phase conductors pass through the core | Usually one conductor passes through the core |
| Sensitivity | Very high for small leakage currents | Designed for rated load current measurement |
Company Information
We a premier professional manufacturer specializing in magnetic components and electronic solutions. Founded in 2009 and headquartered in the high-tech hub of Xi'an, we have accumulated over 15 years of deep expertise in the research, development, and production of high-performance transformers and inductors. Our facility spans 3,000 square meters and is powered by a dedicated workforce of 300+ skilled professionals, including a senior R&D team focused on bespoke magnetic designs.
Our comprehensive product line features high-frequency and low-frequency transformers, toroidal transformers, current transformers, and a wide variety of inductors and magnetic cores. As a Top 6 leading factory for Industrial Controls, we provide critical components for power supplies, telecommunications, automotive electronics, and green energy sectors globally.
Quality is our core competency. Fullstar operates under a strict ISO9001:2015 Quality Management System. Our products carry international safety and environmental certifications including UL, CE, RoHS, and REACH. Every unit undergoes a 100% rigorous testing process before shipment to ensure zero-defect reliability in demanding industrial environments.
We excel in customization. With advanced design-based and sample-based capabilities, we offer rapid 7-day prototyping and flexible OEM/ODM services. Our supply chain reaches over 80 countries, providing localized support and cost-effective logistics. Whether you require high-volume production or small-batch custom coils, Fullstar delivers precision-engineered magnetic components that drive your innovation forward. We welcome global business inquiries for long-term strategic partnerships.
Certification And Exhibition
FAQ
What current range can a ZCT detect?
The detection range depends on the design and application.
Typical specifications include:
Primary current: from several milliamperes to thousands of amperes
Secondary output: 1A, 5A, 100mA, voltage output, or customized signals
Please contact the manufacturer for specific current ratings.
What factors should be considered when selecting a ZCT?
Important selection parameters include:
Rated voltage of the system
Primary current range
Required leakage current detection level
Accuracy requirement
Inner diameter or installation space
Output signal requirement
Operating temperature
Protection relay compatibility
Can a ZCT be customized?
Yes. Customized solutions are available, including:
Core size
Mounting structure
Primary current range
Secondary output
Accuracy class
Cable length
Connector type
Environmental protection requirements
Why choose our Zero Phase Current Transformer?
Our ZCT products feature:
High sensitivity and accuracy
Stable magnetic performance
Low residual output
Excellent insulation characteristics
Reliable long-term operation
Flexible customization capability
They provide a reliable solution for ground fault detection and electrical safety protection.
Hot Tags: custom zero phase current transformer, China, manufacturer, supplier, factory, wholesale, price, for sale, electronic components, passive components, customer-made, standard
Send Inquiry
