11kV / 33kV Epoxy Resin Cast Potential Transformer (PT)
Quick Product Summary
- Model: PP-PT-MV
- Capacity: Ratio: 11kV/√3 : 110V/√3 or 33kV/√3 : 110V/√3
- Standard: IEC 61869-1 & 3, BS 3941
- Manufacture: Positive Power Gazipur
Technical Sales Inquiry:
Direct Phone: +880 1712-345678
Email: info@positivepowerbd.com
Engineering Overview & Scope
Engineered for high accuracy and long-term voltage ratio stability, Positive Power Potential Transformers (PT) feature primary terminals with built-in fuse protection and secondary windings dedicated to precision power metering and protective relays.
Key Engineering Advantages
- High dielectric epoxy resin vacuum casting with partial discharge < 5 pC
- Multi-winding secondary for simultaneous metering and protection
- Integrated primary current-limiting fuse protection option
- Excellent linearity across varying load burdens and temperature swings
- Fully compliant with IEC 61869-3 standards
Primary Industrial Applications
- ▪ Utility Grid Revenue Metering
- ▪ 11kV and 33kV Switchgear Voltage Measurement
- ▪ Generator Synchronizing & Frequency Relay Circuits
- ▪ Under-Voltage and Over-Voltage Protective Relaying
Comprehensive Technical Specifications
Manufactured and rigorously tested according to international IEC standards and certified by BUET (Bangladesh University of Engineering and Technology).
| Technical Parameter | Engineering Specification |
|---|---|
| Rated Primary Voltage | 11,000/√3 V or 33,000/√3 V |
| Rated Secondary Voltage | 110/√3 V (Metering) & 110/3 V (Residual Broken Delta) |
| Accuracy Classes | 0.2, 0.5 for metering; 3P for protection |
| Rated Burden | 50 VA to 100 VA |
| Power Frequency Withstand | 28 kV rms (11kV) / 70 kV rms (33kV) for 1 min |
🔬 Routine & Type Testing
100% factory routine tests including Megger insulation, dielectric breakdown, turns ratio, load/no-load losses, and temperature rise per IEC 60076.
🏛️ BUET Tested & Endorsed
Independently verified and type-tested through Bangladesh University of Engineering and Technology (BUET) electrical testing laboratories.
🛡️ 18-Month Warranty & Support
Full warranty backing with 24/7 on-site emergency technical support, genuine OEM spare parts, and annual preventive maintenance contracts.
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