Current Transformersare vital components in electrical engineering, enabling accurate current measurement and system protection. TheLZZBJ9-10A1 Current Transformeris a standout indoor model, featuring epoxy resin casting insulation. Designed for electrical systems with rated voltages of12kV, 24kV, or 40.5kVand frequencies of50Hz or 60Hz, this transformer excels in measuring current, monitoring electric energy, and providing relay protection. Below, we explore its features, specifications, and benefits, optimized for clarity and search engine visibility with the core keyword“Current Transformers”.
ACurrent Transformer (CT)reduces high electrical currents to manageable levels for measurement and safety. Available in outdoor and indoor variants, indoor models like theLZZBJ9-10A1use epoxy resin insulation for durability and performance. This transformer is widely applied in medium-voltage systems for:
- Current Measurement: Precise tracking of electrical flow.
- Energy Monitoring: Accurate energy usage data.
- Relay Protection: Safeguarding equipment from faults.
TheLZZBJ9-10A1is tailored for indoor environments, offering a compact, reliable solution for modern electrical setups.
Operation Conditions
To ensure optimal performance, theLZZBJ9-10A1 Current Transformeroperates under specific conditions:
- Rated Insulation Level: 12/42/75kV
- Rated Secondary Current: 5A or 1A
- Power Frequency Withstand Voltage: 12kV
- Rated Frequency: 50Hz or 60Hz
- Ambient Temperature: -5°C to +40°C
- Altitude: ≤1000m
- Standard: IEC 60044-1
These parameters make it suitable for a variety of indoor applications, ensuring safety and efficiency.
TheLZZBJ9-10A1offers robust technical specifications, supporting diverse current ratios and accuracy classes. Below is a detailed breakdown:
| Rated Current Ratio (A) | Accuracy Classes Combination | Rated Output (VA) | FS | ALF | 1s Short-Time Thermal Current (kA) | Rated Dynamic Current (kA) |
|---|
| 10-200/5 | 0.2(s)/0.2(s), 0.2(s)/0.5, 0.2(s)/10P, etc. | 10, 15 | 5 (10) | 10, 15, 20 | 150I1n | 375I1n |
| 300/5 | | | | | 31.5 | 80 |
| 400/5 | | | | | 31.5 | 80 |
| 500/5 | | | | | 40 | 100 |
| 600/5 | | | | | 50 | 125 |
| 800/5 | | 20 | | | 63 | 125 |
| 1000/5 | | | | | 80 | 160 |
| 1200-1500/5 | | | | | 80 | 160 |
| 1500-2000/5 | | | | | 100 | 160 |
| 2000-3150/5 | | | | | 130 | 160 |
Key Terms Explained
- Accuracy Classes: Indicate measurement precision (e.g., 0.2(s) for metering, 10P for protection).
- Rated Output (VA): Power delivered to connected instruments.
- FS (Factor of Safety): Limits secondary current under fault conditions.
- ALF (Accuracy Limit Factor): Defines protection accuracy during high currents.
This versatility ensures theLZZBJ9-10A1meets both metering and protection needs effectively.
TheLZZBJ9-10A1offers distinct advantages:
- Epoxy Resin Insulation: Enhances durability and resistance to environmental factors.
- High Precision: Multiple accuracy classes for reliable performance.
- Compact Design: Ideal for indoor installations with limited space.
- Standards Compliance: Meets IEC 60044-1 for quality assurance.
These features position it as a top-tier option amongCurrent Transformersfor medium-voltage applications.
Current Transformerslike theLZZBJ9-10A1are critical in:
- Power Distribution: Ensuring accurate billing and system monitoring.
- Industrial Settings: Protecting machinery from overcurrents.
- Energy Management: Optimizing electricity usage.
Its adaptability makes it a valuable asset across industries.
Installation Tips
For best results:
- Install in a dry, indoor environment.
- Maintain ambient temperatures between -5°C and +40°C.
- Keep altitude below 1000m.
- Avoid dust or corrosive gases.
Proper installation maximizes the longevity and efficiency of thisCurrent Transformer.
TheLZZBJ9-10A1 Current Transformercombines precision, durability, and versatility, making it an excellent choice for electrical systems up to 40.5kV. Whether for current measurement, energy monitoring, or relay protection, this indoor transformer delivers consistent performance.
Interested in enhancing your system with top-qualityCurrent Transformers? Contact us for more details on theLZZBJ9-10A1today!
