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As a dedicated manufacturer of electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing reliable and high-performance solutions for global power infrastructure. Our 10kV LMZK-10 Open Type Transformer for Busbar Mounting, 1000/5A is engineered to deliver precise current measurement and robust protection in medium-voltage applications. With over a decade of experience and a commitment to quality, evidenced by our comprehensive management systems, we design this transformer to meet the rigorous demands of modern electrical networks, ensuring safety, accuracy, and long-term operational stability for our clients worldwide.
This open-type current transformer is a critical component for accurate energy measurement, system protection, and load monitoring. Its design and construction offer significant advantages for engineers and procurement managers seeking dependable instrumentation.
Core Product Features & Technical Advantages:
- Optimized Open-Type Design: Specifically crafted for direct mounting onto primary busbars, eliminating the need for complex through-type cores. This design simplifies installation, reduces space requirements, and is ideal for retrofit projects or compact switchgear assemblies.
- High Accuracy & Reliability: Manufactured with precision-wound cores and high-quality materials, the transformer ensures stable performance across its specified accuracy classes (e.g., 0.5, 1.0). This is crucial for billing-grade metering and sensitive protection relay operations.
- Robust Insulation System: Utilizes advanced epoxy resin casting or other superior insulating compounds. This provides excellent dielectric strength, resistance to environmental contaminants like moisture and dust, and enhanced mechanical stability for a prolonged service life under 10kV conditions.
- Wide Current Range Compatibility: With a rated primary current of 1000A and a standard secondary output of 5A, it is perfectly suited for monitoring high-current feeders in industrial plants, commercial complexes, and utility substations.
- Flexible Configuration: Available in multiple accuracy classes and burden ratings to match specific application requirements, whether for metering, protection, or general monitoring.
Detailed Technical Specifications:
| Parameter | Specification / Value |
|---|---|
| Rated Voltage (Un) | 10 kV |
| Model | LMZK-10 |
| Rated Primary Current (Ipn) | 1000 A |
| Rated Secondary Current (Isn) | 5 A |
| Standard Accuracy Class | 0.5, 1.0, 3.0 (Selectable) |
| Rated Frequency | 50 / 60 Hz |
| Rated Burden | 5 VA, 10 VA, 15 VA (Typical, customizable) |
| Thermal Short-Time Current (Ith) | Typically 40 kA / 1s (Customizable upon request) |
| Dynamic Current (Idyn) | Typically 100 kA (Customizable upon request) |
| Insulation Level | LI 75 kV, AC 42 kV (1 min) |
| Mounting Style | Open Type, for clamping onto rectangular or tubular busbars |
Benefits for Your Operations:
- Simplified Installation & Maintenance: The open-type design allows for quick mounting without disconnecting the main busbar, significantly reducing downtime and labor costs during installation or replacement.
- Enhanced System Safety: Provides reliable isolation between the high-voltage primary circuit and the low-voltage secondary instrumentation, protecting personnel and equipment.
- Cost-Effective Solution: Offers a balance of performance and value, making it a prudent choice for both new installations and system upgrades.
- Global Compliance: Designed and tested in accordance with international standards like IEC 60044-1, ensuring compatibility and acceptance in various markets, including North America, Europe, Southeast Asia, and beyond.
Backed by Jinhua Dika's solid manufacturing foundation, which includes adherence to recognized management standards, and supported by an annual export value reflecting consistent global trust, this transformer represents more than just a component—it's a partnership in reliability. Our products reach diverse markets from North America to Oceania, shipped efficiently from major Chinese ports. For your next project requiring precise, durable, and easily integrable current measurement at 10kV, the LMZK-10 offers a proven solution. Contact us today to discuss your specific requirements, request a detailed datasheet, or place a sample order.
Frequently Asked Questions (FAQ)
Q1: What is the main application of this LMZK-10 current transformer?
A1: It is primarily used for accurate current measurement, energy metering, and protection relay operations in 10kV medium-voltage power distribution systems, commonly found in substations, industrial plants, and large commercial facilities.
Q2: How does the "open type" design benefit installation?
A2: The open-type design allows the transformer to be clamped directly onto an existing busbar without the need to thread the busbar through a core window. This feature makes installation and retrofitting much faster and easier, minimizing system downtime.
Q3: Can this transformer be used for both 50Hz and 60Hz systems?
A3: Yes, the LMZK-10 is typically designed to operate at both standard power frequencies, 50 Hz and 60 Hz, making it suitable for international projects.
Q4: What accuracy classes are available, and how do I choose?
A4: Common accuracy classes include 0.5 (for precision metering), 1.0 (for general metering and monitoring), and 3.0 (for protection relays). The choice depends on your application's requirement for measurement precision.
Q5: What is the significance of the "1000/5A" rating?
A5: This denotes the transformation ratio. It means a primary current of 1000 Amperes is scaled down to a standardized secondary current of 5 Amperes, which is safely and conveniently used by meters, relays, and other instruments.
Q6: Is customization available for different primary currents or physical dimensions?
A6: Yes, as a manufacturer, we can often customize parameters such as the primary current rating, accuracy class, burden, and sometimes physical dimensions to better fit your specific panel layout or system requirements. Please inquire with your detailed needs.
Q7: What standards does this product comply with?
A7: The transformer is designed and tested according to international standards such as IEC 60044-1 and relevant national standards (e.g., GB 1208 in China). Compliance with other specific regional standards can be discussed.
Q8: What are the typical delivery terms and lead times?
A8: Delivery terms are generally FOB from major Chinese ports like Shanghai, Ningbo, or Guangzhou. Lead times vary based on order quantity and customization but are typically competitive. We provide clear timelines upon order confirmation.
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