Resin-Cast CT/PTs
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Resin-Cast CT/PTs
Overview
Indoor Resin-Cast CT/PTs,
Rated for Systems Up to 33k
ETE’s current and voltage transformers are cast in epoxy resin for indoor use in metal-clad and metal-enclosed medium-voltage switchgear, including environments with a potentially explosive atmosphere. Current transformers cover metering, protection and special protection duty, compliant with IEC 61869-1 & 2, with primary current ratings from 5A up to 2500A. Voltage transformers cover metering and special protection duty, compliant with IEC 61869-1 & 3, in phase-to-earth and phase-to-phase connection.
Every unit is wound and cast on our own floor in Hyderabad, then type-tested before dispatch. Standard contractual warranty is 12 months.
| Parameter | Rating |
|---|---|
| Rated Voltage | 3.6kV – 36kV |
| Insulation Class | E |
| Rated Frequency | 50 Hz |
| Rated Continuous Thermal Current | 120% × Ipn |
| Rated Primary Current | Up to 2500A |
| Rated Secondary Current | 5A, 1A, 0.577A |
| Class of Accuracy | 0.2S, 0.5S, 0.5, 1.0, 5P10, 5P20, PS |
| Rated Burden | Up to 30VA |
| Rated Short-Time Current | Up to 40kA / 3 sec |
| Standard | IEC 61869-1 & 2 |
| Parameter | Rating |
|---|---|
| Rated Voltage | 3.6kV – 36kV |
| Insulation Class | E |
| Rated Frequency | 50 Hz |
| Rated Primary Voltage | Up to 36kV / √3 |
| Rated Secondary Voltage | 110V / √3 |
| Class of Accuracy | 0.2, 0.5, 1.0, 3P, 6P |
| Rated Burden | Up to 200VA |
| Overvoltage Factor | 1.2 continuous, 1.9 for 8 hours |
| Standard | IEC 61869-1 & 3 |
*Full dimensional drawings for each model (Wound Primary CT11F/E/D/C/B, Ring Type BPL, 22/33kV Wound Type, Fixed and Gun Type VTs) are available on request with your quote.
Available Configurations
- 11kV Wound Type CT
- 11kV Ring Type CT
- 22/33kV Wound Type CT
- 11kV Fixed Type VT
- 11kV Gun Type VT
- 11kV Fixed Type 3-Phase VT
- 33kV Fixed Type VT
- 33kV Gun Type VT
Suitable For
- Metal-clad switchgear
- Metal-enclosed switchgear
- Environments with a potentially explosive atmosphere
- Metering and protection panels