TheLZZB9-24-180b High Voltage CurrentTransformeris engineered for indoor applications in power systems operating at a rated frequency of50Hz or 60Hzand a rated voltage of20kV. This transformer is an excellent solution forenergy measurement,current measurement, andprotectionin electrical networks.
Key Features
- Superior Insulation:Features a fully enclosed structure cast with epoxy resin, providing outstanding insulation properties and moisture-proof capabilities.
- Compact Design:Small in size and lightweight, making it easy to install and maintain.
- Easy Maintenance:Designed with a surface that is simple to clean.
- Safety First:Equipped with a terminal box for secure and reliable secondary outlet connections.
- Robust Installation:Includes grounding bolts and six mounting holes on the bottom plate for stable and straightforward installation.
Environmental Conditions
- Installation Location:Indoors
- Temperature Range:Operates effectively between-5℃(minimum) and40℃(maximum), with a daily average not exceeding30℃.
- Atmospheric Requirements:Must be installed in an environment free from serious pollution.
Technical Specifications
- モデルLZZB9-24-180B-4
- Rated Frequency:50Hz or 60Hz
- Rated Voltage:20kV
- Rated Secondary Current:Available in5Aor1Aoptions
- Accuracy Class Combinations and Burdens:
- 0.2/0.2/0.2:10/10/10 VA
- 0.2/0.5/0.5:10/10/10 VA
- 0.2/10P10/10P10:10/15/15 VA
- 0.5/10P10/10P10:10/15/15 VA
- 0.2/10P15/10P15:10/10/15 VA
- 0.5/10P15/10P15:10/10/15 VA
- Rated Insulation Level:12/42/75 kV
Performance Data
The table below outlines therated primary currentalong with the correspondingshort time thermal currentそしてdynamically stable currentfor the LZZB9-24-180B-4 model:
| Rated Primary Current (A) | Short Time Thermal Current (kA/s) | Dynamically Stable Current (kA/s) |
|---|---|---|
| 20 | 3 | 7.5 |
| 30 | 4.5 | 11.25 |
| 40 | 6 | 15 |
| 50 | 7.5 | 18.75 |
| 75 | 11.25 | 28.125 |
| 100 | 15 | 37.5 |
| 150 | 22.5 | 56.25 |
| 200 | 31.5 | 80 |
| 300 | 45 | 112.5 |
| 400 | 45 | 112.5 |
| 500 | 45 | 112.5 |
| 600 | 63 | 130 |
| 800 | 63 | 130 |
| 1000 | 80 | 160 |
| 1200 | 80 | 160 |
| 1250 | 80 | 160 |
Applications
The LZZB9-24-180b High Voltage Current Transformer is a versatile and reliable choice for modern power systems requiring precise energy and current measurement, as well as robust protection. Its flexible configuration options—such as selectable secondary currents and a range of accuracy classes—make it suitable for a wide variety of indoor electrical applications.
