TheLZZBJ9-10C1Current Transformer guideis an epoxy resin-cast, indoor-type transformer designed to operate under total working conditions of the strut. It is primarily used forprotection and energy measurementin power systems with a rated voltage of10kV and belowand a rated frequency of50Hz. This transformer is commonly installed inswitchgearor other similar electrical equipment.
Overview
Thishigh-precision current transformeroffers excellent insulation performance and environmental adaptability. Its robust design ensures reliability in power monitoring and protection applications. With its compact size and durable construction, the LZZBJ9-10C1 current transformer is ideal for various power distribution environments.
Features
- Epoxy Resin Insulation: Fully enclosed casting provides excellentpollution and humidity resistance, making it ideal for tropical environments.
- Low Maintenance: Requires minimal upkeep; only periodic surface cleaning is necessary.
- Compact & Lightweight: Small size and reduced weight allow forflexible installationin various orientations.
- High Reliability: Designed forstable performancein demanding electrical conditions.
- Wide Current Range: Supports primary currents from5A to 3150A.
Operation Conditions
- Rated insulation level: 12/42/75kV
- Rated secondary current: 5A or 1A
- Power frequency withstand voltage: 12kV
- Rated frequency: 50Hz/60Hz
- Ambient temperature: -5°C to +40°C
- Altitude: ≤1000m
- Standard Compliance: IEC 60044-1
Technical Data
| Rated Current Ratio (A) | Accuracy Class Combination | Rated Output (VA) (COSΦ0.8) | 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, 0.5/10P, 0.2s/0.5/10P, 0.2/0.5/10P | 10, 15, 15 | 15 | 5 (10) | 10, 15, 20 | 150I1n, 375I1n |
| 300/5 | 0.2(s)/0.5, 0.5/10P | 31.5 | 80 | – | – | – |
| 400/5 | 0.2(s)/0.5, 0.5/10P | 31.5 | 80 | – | – | – |
| 500/5 | 0.2(s)/0.5, 0.5/10P | 40 | 100 | – | – | – |
| 600/5 | 0.2(s)/0.5, 0.5/10P | 50 | 125 | – | – | – |
| 800/5 | 0.2(s)/0.5, 0.5/10P | 20, 63 | 125 | – | – | – |
| 1000/5 | 0.2(s)/0.5, 0.5/10P | 80 | 160 | – | – | – |
| 1200-1500/5 | 0.2(s)/0.5, 0.5/10P | 80 | 160 | – | – | – |
| 1500-2000/5 | 0.2(s)/0.5, 0.5/10P | 100 | 160 | – | – | – |
| 2000-3150/5 | 0.2(s)/0.5, 0.5/10P | 130 | 160 | – | – | – |
Frequently Asked Questions (FAQs)
1. What is the primary application of the LZZBJ9-10C1 Current Transformer?
TheLZZBJ9-10C1 Current Transformeris primarily used forprotection and energy measurementin medium-voltage electrical systems with a rated voltage of up to10kV.
2. Can the transformer be installed outdoors?
No, this is anindoor-typecurrent transformer. For outdoor applications,weatherproof modelsshould be used.
3. What maintenance is required for this current transformer?
It requires minimal maintenance, mainly consisting ofperiodic surface cleaningto remove dirt and ensure proper insulation performance.
Suitable Applications
- Medium Voltage Switchgear
- Substation Equipment
- Power Distribution Networks
- Industrial Electrical Systems
- Utility Metering and Protection
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