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Current Transformers (Fault Recording) Image 1

Current Transformers (Fault Recording)

Applications

  • Relay protection and fault recording in the power system

Features

  • Low cost
  • 7 standard size Good transient characteristic.
  • No need to provide external power supply.
  • Users can choose between output current signal or voltage signal.
Download Datasheet

Specifications

  • Exterior material:
    PBT (UL flame retardant rating 94-V0)
  • Interior insulation:
    epoxy
  • Isolation current:
    2500V AC for 1 minute
  • Dielectric resistance:
    1000MΩ @ 500V DC
  • Surge withstand (optional) :
    5000V（1.2/50μs standard shock wave）
  • Operating temperature:
    -25 to +55℃ / (optional) -40 to +85℃
  • Frequency:
    50 to 400 Hz
  • Accuracy class:
    current transformers class 0.1,0.2 (as defined in IEC 61869-2 Part 2)
  • RoHS compliant

Product Overview

YuanXing Electronics has Current Transformers (CTs) for manufacturers that record faults. These CTs serve as the relay protection current transformer for recording faults with extremely accurate transient responses ($T_p = 100$ ms). The protective current transformers also have UL 94-V0 PBT/ABS housings, 2500 V of isolation, and 5000 V of surge capacity. They are compliant with IEC 61869-2 Class 0.5 / 1.0 and provide selectable voltage/current outputs without requiring any external power supply. The CT can be used in an operating frequency range from 50 Hz to 2000 Hz and at ambient temperatures between -25°C and +55°C. This makes the protective CTs designed for relay use incredibly reliable in most applications of industrial power systems.

Typical Products

Image Part Number Rated Input (A) Turn Ratio Frequency (Hz) Secondary Burden (Ω) Accuracy Class Dimensions (mm) PDF
Current Transformers (Fault Recording) Image 1 TA1111 5~30 1000:1
2000:1
2500:1 		50 to 400 ≤200 0.1
0.2
0.5 		ID-L-W-H 7.0-22.0-18.0-23.0
Current Transformers (Fault Recording) Image 2 TA1311 5~80 1000:1
2000:1
2500:1 		50 to 400 ≤800 0.1
0.2
0.5 		ID-L-W-H 7.0-22.0-18.0-23.0
Image Part Number Rated Input (A) Turn Ratio Frequency (Hz) Secondary Burden (Ω) Accuracy Class Dimensions (mm) PDF
Current Transformers (Fault Recording) Image 3 CTT0150 5-150 1：1000
1：2000
1：3000
1：5000 		50 to 400 50-400 0.1
0.2 		15-58-23-45

Frequently Asked Questions

Current transformers/sensors, voltage transformers/sensors, and Rogowski coils from Yuanxing are widely adopted across the following industries:
Electric Power Grids, Renewable Energy, Rail Transit, Industrial Automation & Motor Control, Aerospace, Data Centers, Telecommunications.

Yes. Our in-house R&D and engineering teams can support customized current/voltage transformers, Rogowski coil and current/voltage sensor designs, including special ratios, form factors, output signals, and mounting requirements.

Yes. We can supply detailed product specifications, datasheets, and wiring/application notes for each standard or customized configuration.

Yes. With over 20 years of export experience, we serve customers worldwide and provide full sales and logistics support for both small-quantity orders and large-volume projects.

Please submit an inquiry via email or our online contact form. For selected products, we can provide free samples; shipping will be arranged using your courier account (e.g., DHL / FedEx / UPS).