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Product Detailed Parameters
- Description：CT, Indoor, Model: 5, Ratio: 80:
- Series：Omega 30
- Mfr：Instrument Transformer
- Package：Retail Package
- Frequency Range：50Hz ~ 400Hz
- Type：Non-Invasive (Solid Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：16:01
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Panel Mount
- Size / Dimension：3.780" L x 3.530" W (96.01mm x 89.66mm)
- Height - Seated (Max)：1.100" (27.94mm)
- Termination Style：Stud
- Turns Ratio - Primary:Secondary：80:05:00
- Current Rating (Amps)：80 A
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Overview
The Instrument Transformer 5SFT-800 is a single-phase indoor current transformer designed for metering applications. It features a current ratio of 80:5, stepping down primary current by a factor of 16 to provide accurate secondary readings. The unit supports a frequency range of 60 Hz and includes a 10 kV basic impulse level (BIL) rating. Key physical specifications include a window diameter of 1.56 inches and a metering class accuracy of 2% at 1.5 VA.
Feature Summary
- Provides scaled-down replica of high voltage line current for isolation of measuring instruments
- Designed for accurate secondary current readings in AC circuits
- Indoor installation with solid core construction
Applications
- Energy billing and transaction purposes
- System protection control
- Measurement of voltage, current, energy, and power in AC circuits
Procurement Notes
Verify the specific current ratio requirement against the load. Confirm the mounting style matches the panel design. Ensure the frequency specification aligns with the system operation. Check insulation levels for the installation environment. Validate the metering class accuracy meets the billing or monitoring standards required for the project.
Selection Notes
Select this model when an 80:5 ratio is required for low-current metering applications. Consider the 1.56-inch window size for conductor fitment. Evaluate the 10 kV BIL rating against the system's surge protection needs. Ensure the indoor environment suits the solid core construction. Compare the 1.5 VA burden capacity with connected instrument loads.
Part Context
This component belongs to the 5SFT series of instrument transformers, which are widely used in electrical distribution systems. The series includes various ratios and sizes to accommodate different current levels. These transformers are essential for isolating high-voltage circuits from low-voltage measurement devices, ensuring safety and accuracy in utility and industrial settings.
Replacement Considerations
The 5SFT-801 is a documented substitute part number within the same product family. Verify that the 800:5 ratio of the 5SFT-801 is compatible with the existing circuit requirements before substitution.
