7RL-101

Current Sense Transformers Overview

The Sifam Tinsley Instrumentation Inc. model 7RL-101 is a single-phase indoor current transformer designed for electrical measurement applications. It features a window-type construction and operates at a frequency of 60 Hz. The device provides a standard current ratio of 100:5 A, facilitating the connection of low-current measuring instruments to high-current circuits. It is rated for a basic impulse insulation level (BIL) of 10 kV, ensuring adequate dielectric strength for industrial environments. The unit supports a burden capacity of 2.5 VA and functions within a voltage range up to 600 V.

Current Sense Transformers Feature Summary

• Window-type construction for easy installation around conductors
• Single-phase design optimized for specific circuit monitoring
• Standard 100:5 A transformation ratio for compatibility with common panel meters

Current Sense Transformers Applications

• Indoor electrical panel metering systems
• Industrial power distribution monitoring
• Integration with protective relaying equipment

Current Sense Transformers Procurement Notes

Verify that the required current ratio matches the application needs, as this model is fixed at 100:5 A. Confirm the operating frequency is compatible with the system, specifically noting the 60 Hz rating. Ensure the conductor size passing through the window aperture meets physical requirements. Check that the 10 kV BIL rating satisfies the insulation requirements of the installation environment. Validate that the connected burden does not exceed the 2.5 VA limit to maintain accuracy.

Current Sense Transformers Selection Notes

Select this component when a non-ANSI rated, window-type current transformer is required for indoor use. It is suitable for applications needing a 100:5 A ratio with a 60 Hz operational frequency. Consider the 10 kV BIL rating for appropriate insulation levels in medium-voltage contexts up to 600 V. This model is ideal for integrating with standard analog or digital panel meters requiring low secondary current input.

Current Sense Transformers Part Context

The 7RL-101 belongs to the Model 7 series of current transformers manufactured by Sifam Tinsley Instrumentation Inc. This series is characterized by robust construction and reliable performance in industrial settings. The manufacturer has a long-standing reputation for producing high-quality electrical measuring instruments. The Model 7 line typically offers various ratios and configurations to suit different measurement needs.

Current Sense Transformers Replacement Considerations

Cross-reference with Crompton Instruments (TE Connectivity) part number 7RL-101, which shares identical specifications including the 100:5 A ratio, 10 kV BIL, and 60 Hz frequency. Verify mechanical dimensions and mounting requirements before substitution.