Split Core Current Transformer SCTK751AT Series Voltage Output for Power Monitoring and Relay Protection

The SCTK751AT series split-core current transformer is designed for power monitoring, power distribution systems, and relay protection applications. The product uses a split-core structure that allows quick installation without disconnecting or removing cables. This significantly reduces installation cost and time. The secondary winding has a built-in precision resistor, providing a voltage signal output that can connect directly to various meters and protection devices. High-precision measurement ensures accurate and reliable current data under different load conditions. It is widely used in power monitoring, power distribution systems, relay protection, electrical equipment monitoring, and energy management.

• Split-core structure – installation without cable removal

• Voltage output signal

• Test output voltage under rated current conditions

• High-precision measurement

• Built-in precision resistor

• Safe low-voltage output

• High reliability – long service life

• Easy installation – saves cost

• Power monitoring systems

• Power distribution system current measurement

• Relay protection devices

• Electrical equipment monitoring

• Energy Management Systems

• Industrial automation control

• Building electrical monitoring

• Retrofit projects (installation without power-off)

Q: What output type does the SCTK751AT series use?

A: This series uses a voltage output type. The secondary winding has a built-in precision resistor that converts the current signal into a voltage signal output (Vout tested at Rated Current). The voltage output can connect directly to PLC, DCS, measurement instruments, and protection devices without the need for additional sampling resistors.

Q: What are the advantages of voltage output compared to current output?

A: Voltage output signals can connect directly to standard voltage input modules (such as 0-10V or 0-333mV). No additional sampling resistors or transmitters are required. This simplifies system design, reduces wiring costs, and improves anti-interference capability. Voltage signals are less affected by line resistance during transmission, making them suitable for longer-distance transmission.

Q: Does the split-core current transformer require power-off or cable removal during installation?

A: No. The SCTK751AT series uses a split-core structure with a core that opens and closes. It can be installed without disconnecting or removing any cables. This feature makes it especially suitable for retrofit projects and applications where power cannot be turned off, significantly reducing installation costs and time.