The LZZBJ9-10C is a high-performance, epoxy resin-cast current transformer designed for indoor electrical installations. It is widely used in 10kV (kilovolt) power distribution systems for accurate current measurement, energy metering, and relay protection applications.
Product introduction
The LZZBJ9-10C is a high-performance, epoxy resin-cast current transformer designed for indoor electrical installations. It is widely used in 10kV (kilovolt) power distribution systems for accurate current measurement, energy metering, and relay protection applications.
1.Key Features
·Rated Voltage: 10kV (suitable for medium-voltage systems)
·Accuracy Class: Typically meets 0.2, 0.5, or 1.0 for measurement and 5P/10P for protection, ensuring precise current monitoring.
·Rated Primary Current: Customizable range (e.g., 5A-3000A) to match system requirements.
·Rated Secondary Current: Standard 5A or 1A output for compatibility with meters and relays.
·Insulation Material: Epoxy resin casting ensures excellent mechanical strength, moisture resistance, and long-term stability.
·Mounting Style: Supports busbar (through-type) or cable installation, facilitating flexible integration in switchgear or panel boards.
·Compliance: Conforms to IEC 60044-1 and other international standards for safety and performance.
2.Applications
·Energy metering in substations or industrial plants.
·Overcurrent and short-circuit protection in power systems.
·Monitoring and control in 10kV switchgear, ring main units (RMUs), and distribution cabinets.
3.Advantages
·Compact design saves space in switchgear assemblies.
·High dielectric strength ensures reliable operation in harsh environments.
·Low maintenance due to robust, sealed construction.
Technical data table
| Type | Rated primary current(A) |
Accuragy class combination | Rated secodary output(vA) | Rated short time thermal current(kA/ls) |
Rated dynamic current (kA) |
||||||
| 0.2S(0.5S) | 0.2(0.5) | 10P10 | |||||||||
| LZZBJ9-10C | 5~100 | 0.5/10P10 0.2/10P10 0.5S/10P10 0.5S/0.5/10P10 |
10 | 10 | 15 | 100 | lin | 250 | lin | ||
| 150 | |||||||||||
| 200 | |||||||||||
| 250 | |||||||||||
| 300 | |||||||||||
| 400 | |||||||||||
| 500 | |||||||||||
| 600 | |||||||||||
| 800 | |||||||||||
| 1000 | 15 | 15 | 15 | 100 | lin | 250 | lin | ||||
| 1200 | |||||||||||
| 1500 | |||||||||||
Outline and dimensions of installation
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