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FZW10-12XDG
Fenarro
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This device is widely used in critical power supply systems where uninterrupted operation is required. When the primary power source experiences an outage or undervoltage, the system automatically transfers the load to the backup power source, ensuring seamless and reliable operation.
With short-circuit and overcurrent protection interlocking functions, the device effectively prevents unnecessary impacts caused by repeated faulty power supply. Its advanced design ensures complete electrical isolation between two power sources and incorporates both mechanical and electrical interlocks for enhanced reliability and safety.
Critical facilities requiring continuous power supply
Oilfields, mining, metallurgy, and chemical industries
Railway and communication networks
Industrial and manufacturing enterprises (10kV lines)
Power distribution systems in plants, substations, and infrastructure
Automatic Dual Power Switching – Ensures uninterrupted power supply by transferring load between two 12kV sources.
Reliable Protection – Built-in short-circuit and overcurrent protection with interlock functions.
High Safety Design – Complete isolation of dual power sources with advanced mechanical and electrical interlocks.
Advanced Controller – Intelligent monitoring and switching for higher automation and system safety.
High Reliability – Suitable for harsh industrial environments with robust structure and stable performance.
Wide Applications – Ideal for industries where power continuity is critical (oil, mining, metallurgy, railways, etc.).
Maintenance-Friendly – Compact design, easy to install, and long operational life.
| Serial No. | Item | Unit | Numerical Value | |
|---|---|---|---|---|
| 1 | Rated Voltage | kV | 12 | |
| 2 | Maximum Operating Voltage | kV | 12 | |
| 3 | Rated Current | A | 630 | |
| 4 | Rated Short - circuit Load Breaking Current | kA | 20 | |
| 5 | Rated Short - circuit Making Current (Peak Value) | kA | 50 | |
| 6 | Rated Peak Withstand Current | kA | 50 | |
| 7 | Rated 1min Short - time Withstand Current | kA | 20 | |
| 8 | Rated Insulation Level | Power Frequency Withstand Voltage (Dry - type) | kV | 42 |
| Lightning Impulse Withstand Voltage (Peak Value) | kV | 75 | ||
| 9 | Rated Operating Sequence | Open - 0.3s Close & Separate - 180s Close & Open | ||
| 10 | Mechanical Life | times | 10000 | |
| 11 | Number of Rated Short - circuit Breaking Current Operations | times | 30 | |
| 12 | Rated Closing Voltage of Operating Mechanism | V | 220 | |
| 13 | Rated Opening Voltage of Operating Mechanism | V | 220 | |
| 14 | Contact Opening Distance | mm | 9±1 | |
| 15 | Over - travel | mm | 3 | |
| 16 | Asynchronism of Three - phase Closing and Opening | ms | ≤2 | |
| 17 | Contact Closing Rebound Time | ms | ≤2 | |
| 18 | Average Opening Speed | s | 1.0±0.2 | |
| 19 | Average Closing Speed | s | 0.7±0.15 | |
| 20 | Opening Time | At Maximum Operating Voltage | s | 0.15±0.05 |
| At Minimum Operating Voltage | s | 0.03 - 0.06 | ||
| 21 | Closing Time | s | 0.025 - 0.05 | |
| 22 | DC Loop Resistance of Each Phase Main Circuit | μΩ | ≤180 | |
| 23 | Allowable Cumulative Wear Thickness of Moving and Static Contacts | mm | 3 | |
Note: If users have special requirements, they can be determined after consultation with our factory.
Q1: What is the main function of the FZW10-12XDG switchgear?
A1: It ensures continuous power supply by automatically switching between two independent 12kV power sources.
Q2: What happens if the primary power source fails?
A2: The device automatically transfers the load to the backup power source, ensuring uninterrupted power.
Q3: Does it provide protection during faults?
A3: Yes, it includes short-circuit and overcurrent protection with interlock functions to prevent unnecessary impacts.
Q4: What industries commonly use this switchgear?
A4: It is widely applied in oilfields, mining, metallurgy, chemicals, railways, communications, and 10kV industrial distribution networks.
Q5: How is safety ensured?
A5: The system features complete power source isolation and mechanical/electrical interlocks, guaranteeing high operational safety.
