Wilmall CT-Sim: High-Fidelity Current Transformer Simulation & Analysis

Are you looking to accurately simulate current transformer (CT) performance without risking damage to your equipment? Wilmall CT-Sim is a cutting-edge simulation tool designed to deliver precise current transformer simulation, focusing on saturation and transient response analysis. Whether you’re verifying CT designs, testing protection relays, or validating meter accuracy, CT-Sim offers a safe and reliable alternative to costly physical testing.

Core Value Proposition: Eliminate Risk & Simulate Saturation and Transient Response

• Risk-Free Testing: Avoid potential damage from physical overcurrent tests by simulating exact CT behavior.
• Saturation Simulation: Model core saturation with detailed magnetic hysteresis loop and B–H curve analysis, including knee point voltage verification.
• Transient Performance: Accurately reproduce inrush currents, DC offset effects, and transient fault responses for dynamic system analysis.
• Comprehensive Analysis: Understand and predict CT behavior under varied burdens and fault conditions, improving system protection and metering accuracy.

Wilmall CT-Sim bridges the gap between theoretical design and real-world performance by offering a high-fidelity platform that reflects every nuance of CT operation. This empowers engineers and technicians globally to save time, enhance testing confidence, and ensure compliance with standards like IEC 61869-2 그리고 IEEE C57.13.

Technical Capabilities: The Equivalent Circuit Approach

The Wilmall CT-Sim relies on a precise equivalent circuit model to replicate real-world behavior of current transformers. This modeling technique breaks down the CT into key components for more accurate simulations:

By integrating these components into a comprehensive equivalent circuit, Wilmall CT-Sim delivers high-fidelity simulation of both steady state and dynamic CT performance. This approach supports advanced analysis like magnetic hysteresis loops, knee point voltage verification, and transient fault behavior.

This level of detail ensures testing scenarios capture real CT sensitivities—important when validating protection class stability, ratio and phase error, and transient current distortions alike.

For examples of physical CT burden characteristics and window-type transformers, check out Wilmall’s range of split core current transformers designed for versatile field use.

Magnetic Behavior & Saturation Analysis

Understanding magnetic behavior is key for accurate current transformer simulation. The Wilmall CT-Sim lets you visualize the B-H curve, clearly showing how the magnetic core behaves under different currents. This includes the magnetic hysteresis loop, which captures the lag between the magnetic field strength (H) and magnetic flux density (B), essential for modeling real-world core losses and remanence flux.

The B-H loop helps identify saturation effects, where the core starts to lose its ability to magnetize linearly. In practice, this means the CT can no longer reproduce a proportional secondary current, risking measurement errors or relay failures. Wilmall CT-Sim incorporates knee point voltage (Vk) verification, pinpointing where the core hits saturation. Accurate knee point voltage modeling ensures your instrument transformer testing and secondary injection tests reflect true operating conditions.

Our saturation logic also actively prevents simulation faults by detecting nonlinear responses early, helping protect your system from false alarms or damage during events like inrush currents. With precise saturation analysis, you can validate critical factors like the accuracy limit factor (ALF) and instrument security factor (ISF), ensuring protection class compliance and relay setting validation.

By integrating core saturation, B–H curves, and knee point voltage insights, Wilmall CT-Sim offers a robust foundation for safer and more reliable current transformer modeling. This detailed magnetic behavior and saturation analysis sets it apart for engineers focused on high-precision CT simulation and electromagnetic transient studies.

Transient Performance & Fault Simulation

Simulating the transient performance of current transformers is crucial for accurate fault analysis and protection system design. Wilmall CT-Sim captures the dynamic response to system faults, including detailed modeling of inrush current behavior to prevent false relay trips during transformer energizing events. It accurately accounts for DC offset effects and evaluates the time-to-saturate under different fault scenarios, ensuring reliable protection coordination.

The simulation tool supports fault replay through COMTRADE files, allowing you to input real fault waveforms and analyze CT response under actual system disturbances. This helps verify that protection devices operate correctly without misinterpretation caused by CT saturation or transient distortion.

By modeling these complex transient phenomena, Wilmall CT-Sim aids in identifying potential relay setting issues and improving differential protection stability. Advanced representation of the equivalent circuit parameters under transient conditions ensures precision in predicting faults and instrument transformer behavior at critical moments.

Applications & Compliance

Wilmall CT-Sim plays a crucial role in several key applications where precise current transformer simulation matters. It’s designed to help protect equipment and ensure reliability in power systems, making it ideal for protection class verification and metering accuracy checks. By simulating the CT’s behavior under various operating conditions, including saturation and transient responses, you can confidently validate relay settings and prevent false trips.

The simulation aligns with important standards like IEC 61869-2 and IEEE C57.13, which govern current transformer performance and testing. This compliance ensures your protection schemes meet global industry benchmarks, improving system stability and accuracy. Whether you’re verifying instrument transformer testing or checking accuracy limit factors (ALF) and instrument security factors (ISF), Wilmall CT-Sim offers reliable support for your critical tasks.

For reliable control integration in testing environments, Wilmall also provides specialized options like the pendant control station that complement your CT simulation and testing setup efficiently.

VI. Technical Specifications

Wilmall CT-Sim delivers precise current transformer simulation with a focus on accuracy, frequency response, and burden measurement to meet diverse testing needs.

Supported Current Transformer Types

By incorporating the equivalent circuit approach—covering magnetizing inductance, leakage inductance, and secondary burden—Wilmall CT-Sim ensures reliable modeling of real-world CT behavior. The system supports test setups complying with IEC 61869-2 and other international standards.

For enhanced simulation fidelity and accessory integration, pairing the CT simulator with specialized connectors and interface products like Wilmall’s LD20 series connectors can streamline your testing setup.

This detailed specification data helps engineers and technicians dimension CTs confidently, ensuring accurate transient performance 그리고 fault current behavior analysis essential for protection and metering applications worldwide.