LMZK-10 Open-Type Current Transformer for Gas-Insulated Switchgear | China Suppliers & Factory Quality
Model and its meaning
Summarize
Provides accurate current measurement to ensure the safe and stable operation of the system.
Gas insulation design with excellent withstand voltage performance, adaptable to various complex environments.
Made with high-quality materials, it has excellent corrosion resistance and anti-aging properties, extending its service life.
The open design facilitates quick installation and maintenance, reducing downtime.
Suitable for current monitoring and protection in substations, power distribution rooms, and other power equipment.
Technical parameter
| Model | Purpose | Measure the current transformer | Protect the current transformer | Double-winding current transformer | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Current ratio | Accuracy level and rated load(VA) | Accuracy level and rated load(VA) | Accuracy level and rated load(VA) | |||||||
| 0.5 | 1 | 3 | 10P5 | 10P10 | 0.5 | 1 | 10P10 | 10P5 | ||
| LMZK-10-2 | 50/5 | – | – | 2.5 | – | – | – | – | – | – |
| 75/5 | – | – | 2.5 | – | – | – | – | – | – | |
| 100/5 | – | 2.5 | – | 2.5 | – | – | – | – | – | |
| 150/5 | – | 2.5 | – | 3.75 | 1.5 | – | – | – | – | |
| 200/5 | 2.5 | 2.5 | – | 5 | 2.5 | – | – | – | – | |
| 300/5 | 2.5 | 2.5 | – | 5 | 2.5 | – | 2.5 | – | 1.5 | |
| 400/5 | 5 | 5 | – | 5 | 2.5 | 2.5 | 2.5 | – | 2.5 | |
| 500/5 | 5 | 5 | – | 5 | 2.5 | 2.5 | 2.5 | – | 2.5 | |
| 600/5 | 5 | 5 | – | 5 | 2.5 | 2.5 | 2.5 | – | 2.5 | |
Frequently Asked Questions (FAQ)
What is the primary application of the LMZK-10 current transformer?
The LMZK-10 is an open-type current transformer specifically designed for gas-filled cabinets. It is widely used for current monitoring and system protection in substations, power distribution rooms, and other power equipment.
What are the key benefits of the open-type design?
The open design of the LMZK-10 allows for quick and easy installation as well as simplified maintenance, which significantly reduces system downtime during installation or replacement.
What are the rated secondary current options?
The LMZK-10 provides flexible current output options of either 5A or 1A to accommodate various system requirements and meet different application scenarios.
What environmental limits can the LMZK-10 withstand?
It is designed for Level III pollution environments and can operate in temperatures ranging from a minimum of -5℃ to a maximum of 40℃ (with a daily average not exceeding 30℃). It is suitable for installations at altitudes up to 1000 meters.
Which product standards does this current transformer comply with?
The LMZK-10 fully complies with the Chinese national standards GB/T20840.1 and GB/T20840.2, ensuring high quality, reliability, and safety of the equipment.

