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Durable LMZK-10 Open-Type Current Transformer for Gas-Filled Cabinets from China Suppliers and Factory
Model and its meaning
Summarize
⚡
The LMZK-10 open-type current transformer is designed specifically for gas-insulated switchgear — a crucial component in modern power systems offering high precision, excellent insulation, durability, and ease of installation.
🔧 Easy Installation
The LMZK-10's open design makes installation quick and simple, minimizing installation time. This convenient method is particularly advantageous in time-sensitive environments, reducing downtime and accelerating power system commissioning. The open design also facilitates maintenance, ensuring repairs can be performed with minimal disruption.
The LMZK-10's open design makes installation quick and simple, minimizing installation time. This convenient method is particularly advantageous in time-sensitive environments, reducing downtime and accelerating power system commissioning. The open design also facilitates maintenance, ensuring repairs can be performed with minimal disruption.
🌐 Versatile Applications
Suitable for current monitoring and protection in substations, distribution rooms, and other electrical equipment. Its adaptability makes it ideal for utilities, industrial facilities, and commercial buildings — well-prepared to meet the needs of a variety of applications.
Suitable for current monitoring and protection in substations, distribution rooms, and other electrical equipment. Its adaptability makes it ideal for utilities, industrial facilities, and commercial buildings — well-prepared to meet the needs of a variety of applications.
🏆 Advanced Technology
With continuous development of the industry, the LMZK-10 fully embodies advancements in current transformer technology — making it an indispensable tool for engineers and technicians ensuring safe and efficient operation of power systems.
With continuous development of the industry, the LMZK-10 fully embodies advancements in current transformer technology — making it an indispensable tool for engineers and technicians ensuring safe and efficient operation of power systems.
🛡️ Reliable Solution
The LMZK-10 is more than just a product; it's a solution designed to meet the challenges faced by electrical engineers. Providing reliable current measurement and protection, it enhances the safety and efficiency of power systems across demanding environments.
The LMZK-10 is more than just a product; it's a solution designed to meet the challenges faced by electrical engineers. Providing reliable current measurement and protection, it enhances the safety and efficiency of power systems across demanding environments.
Technical Parameter
- 📐Power Factor of Load: COCφ = 0.8 (lag)
- 🔌Rated Secondary Current: 5A or 1A
- 〰️Rated Frequency: 50Hz or 60Hz
- 🌫️Contamination Level: Grade III
- 🌡️Ambient Temperature: Min -5℃, Max 40℃, daily average ≤ 30℃
- ⛰️Altitude: ≤ 1000m
- 📋Product Standards: GB/T20840.1 / GB/T20840.2
| 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-10-120 | 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 LMZK-10 current transformer used for?
The LMZK-10 is an open-type current transformer designed specifically for gas-insulated switchgear. It is used for current monitoring and protection in substations, distribution rooms, and other electrical equipment in utilities, industrial facilities, and commercial buildings.
❓ What are the rated secondary current options for the LMZK-10?
The LMZK-10 supports two rated secondary current options: 5A or 1A, allowing flexibility to match a wide range of measurement and protection requirements in different power system configurations.
❓ What current ratio range does the LMZK-10-120 model cover?
The LMZK-10-120 model covers a current ratio range from 50/5 up to 600/5, supporting various accuracy levels and rated loads for measurement, protection, and double-winding applications as specified in the technical parameter table.
❓ What are the operating temperature and altitude requirements for the LMZK-10?
The LMZK-10 operates within an ambient temperature range of -5℃ (minimum) to 40℃ (maximum), with a daily average temperature not exceeding 30℃. It is also designed for use at altitudes of up to 1000 meters above sea level.
❓ Which product standards does the LMZK-10 comply with?
The LMZK-10 current transformer is manufactured in compliance with GB/T20840.1 and GB/T20840.2 product standards, ensuring it meets the required quality, safety, and performance benchmarks for current transformers.
❓ Why is the open-type design of the LMZK-10 an advantage?
The open-type design of the LMZK-10 makes installation quick and straightforward, significantly minimizing installation time and reducing system downtime. It also simplifies maintenance and repair work, making it especially beneficial in time-sensitive operational environments such as power system commissioning.

