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Help CenterLMZK-10 10kV Open Type Transformer for Substation and Ring Main Unit
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As a professional manufacturer with a strong export presence, Jinhua Dika Electrical Equipment is dedicated to providing reliable and efficient power distribution solutions. Our LMZK-10 10kV Open Type Transformer is engineered specifically for the demanding environments of substations and Ring Main Units (RMUs). This transformer represents a commitment to quality, safety, and operational stability, designed to meet the rigorous requirements of modern power grids. We understand that the core of any distribution network is dependable equipment, and our LMZK-10 is built to deliver just that, ensuring seamless power flow and system integrity.
The LMZK-10 transformer is a key component in medium-voltage distribution networks. Its open-type, dry-type design eliminates the risks and maintenance associated with liquid dielectrics, making it an ideal choice for indoor installations or within protected outdoor enclosures. Constructed with high-grade materials and advanced manufacturing techniques, this transformer offers superior performance and a long service life.
Core Product Features and Technical Advantages:
- Robust & Safe Design: The open-type, dry-type construction uses vacuum pressure impregnated (VPI) windings with high-temperature insulation (typically Class F or H). This design is inherently fire-resistant, environmentally friendly (no oil), and requires minimal maintenance, enhancing operational safety for substations and RMUs.
- Optimized for RMU Integration: Specifically configured to fit seamlessly into standard Ring Main Unit compartments. Its compact design and terminal arrangements are tailored for easy connection to RMU switchgear, saving valuable space and simplifying installation.
- High Efficiency & Low Losses: Utilizes high-quality, low-loss amorphous or silicon steel cores to minimize no-load and load losses. This results in significant energy savings over the transformer's lifetime, reducing the total cost of ownership for our clients.
- Excellent Thermal Performance: The open design allows for efficient natural air cooling (AN). The winding structure and ventilation channels are optimized to ensure effective heat dissipation, maintaining stable operation even under continuous full load conditions.
- Customizable Configurations: We understand that projects have unique requirements. The LMZK-10 can be customized in terms of power rating, voltage taps, impedance, protection class (IP rating for optional enclosures), and terminal types to match specific application needs.
- Durable & Reliable: Built to withstand thermal cycling, short-circuit stresses, and harsh electrical environments. Rigorous testing, including impulse and partial discharge tests, ensures high reliability and durability for critical infrastructure applications.
Key Technical Specifications (Standard Model):
| Parameter | Specification |
|---|---|
| Model | LMZK-10 |
| Rated High Voltage | 10 kV, 11 kV, or other standards (e.g., 10.5kV) |
| Rated Low Voltage | 400V, 415V, 480V, or as required |
| Frequency | 50 Hz / 60 Hz |
| Insulation Level (LI/AC) | 75 kV / 35 kV (Standard for 10kV class) |
| Cooling Method | AN (Air Natural) |
| Temperature Rise Limit | According to insulation class (e.g., 100K for Class F) |
| Noise Level | Low noise design, typically below 65 dB(A) |
Benefits for Your Business:
- Enhanced Grid Reliability: Provides a stable and reliable voltage transformation point, crucial for uninterrupted power supply in distribution networks.
- Reduced Lifetime Costs: Low maintenance needs (no oil testing/filtering) and high energy efficiency translate to lower operational expenses.
- Space and Installation Efficiency: Its design saves space in compact substations and RMUs, and its straightforward installation reduces project timelines.
- Environmental Compliance: The dry-type, non-flammable design meets stringent environmental and fire safety regulations for indoor installations.
- Flexible Project Integration: Customization options allow it to be tailored for both new projects and retrofit applications, providing design flexibility.
Backed by Jinhua Dika Electrical Equipment's commitment to quality, evidenced by our established manufacturing processes and a track record of serving diverse global markets from North America to Southeast Asia, you can trust the LMZK-10 transformer. Our annual export value reflects the confidence international clients place in our products. Sourced from major ports like Shanghai and Ningbo, we ensure timely and efficient logistics. Choosing the LMZK-10 means investing in a component that enhances the safety, efficiency, and reliability of your power distribution system. Contact us today to discuss your specific requirements and receive a detailed quotation. Let us be your partner in building a more resilient electrical infrastructure.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of an "open type" dry transformer over an oil-immersed one for substation use?
A1: The primary advantages are enhanced safety and lower maintenance. Open dry-type transformers are fire-resistant, eliminate the risk of oil leaks and contamination, and do not require oil monitoring or containment systems, making them ideal for indoor or environmentally sensitive locations within substations.
Q2: Can the LMZK-10 transformer be used outdoors?
A2: The standard LMZK-10 is an open-type design intended for indoor installation or within a weatherproof enclosure. For direct outdoor exposure, we can provide an optional protective enclosure with a suitable IP (Ingress Protection) rating, such as IP23 or higher, to shield it from rain and dust.
Q3: What power ratings (kVA) are available for this model?
A3: The LMZK-10 series is designed for a range of power ratings commonly used in RMUs and compact substations. Typical ratings range from 100 kVA up to 2500 kVA. Please contact us with your specific load requirements for the most suitable model.
Q4: How does this transformer connect to a Ring Main Unit?
A4: It is designed for straightforward integration. The transformer's HV (High Voltage) bushings are configured to connect directly to the RMU's cable outlets or busbar system, while the LV (Low Voltage) side typically terminates in a low-voltage panel or switchboard. Dimensional drawings and connection diagrams are provided for precise fitting.
Q5: What are the standard delivery and lead times?
A5: Lead times vary based on the order quantity and customization level. For standard configurations, typical production lead time is 4-6 weeks. We ship from major Chinese ports (Shanghai, Tianjin, Guangzhou, Ningbo) and can arrange logistics to suit your schedule.
Q6: What kind of testing is performed before shipment?
A6: Each transformer undergoes routine tests as per international standards (IEC 60076), which include but are not limited to: ratio test, winding resistance measurement, impedance voltage and load loss measurement, no-load loss and current measurement, dielectric tests, and temperature rise test on a sample basis. Test reports are available.
Q7: Is technical support available after purchase?
A7: Yes, we provide comprehensive technical support, including installation guidance, documentation, and operational advice. Our team is available to assist with any technical queries during the commissioning and operational phases of the project.
Q8: Can you provide custom voltage ratios or special impedance values?
A8: Absolutely. As a manufacturer, we have the flexibility to customize key parameters like voltage ratio (primary and secondary voltages), vector group (e.g., Dyn11), and impedance percentage to meet your specific system design requirements. Please discuss your needs during the inquiry stage.
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