Description
General Description
The STAVOL AVR TRI-PHASE 220V 15KVA WITH BY-PASS (TNS3-B-15,000VA) is a high-performance automatic voltage regulator designed to deliver stable and reliable 220V output for tri-phase electrical systems. Built with pure copper windings and equipped with advanced safety components, this AVR effectively protects sensitive and heavy-duty equipment from voltage fluctuations such as under-voltage, over-voltage, and power instability.
The integrated by-pass function allows uninterrupted power during maintenance or emergency situations, making it ideal for continuous operations.
Product Features
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Tri-Phase System – Suitable for balanced three-phase electrical installations
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15KVA Capacity – Handles medium to large electrical loads efficiently
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Wide Input Voltage Range – 160V–260V AC for stable performance even with fluctuating supply
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Stable Output Voltage – Regulated 220V AC output
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Frequency Range – Supports 50–60Hz operation
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Pure Copper Winding – Ensures higher efficiency, durability, and better heat resistance
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25A Circuit Breaker (MCB) – Provides overload and short-circuit protection
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Magnetic Contactor Safety System – Enhances operational safety and reliability
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Built-in By-Pass Function – Enables direct power supply during servicing or AVR failure
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Dual Delay Time Protection
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Long Delay: 2–5 minutes
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Short Delay: 2–5 seconds
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Heavy-Duty Metal Enclosure – Designed for industrial and commercial use
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Compact and Space-Saving Design – Measurement: 49 × 45 × 58 cm
Applications
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Industrial machinery and production equipment
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Commercial buildings and office electrical systems
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Manufacturing plants and workshops
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Elevators, compressors, and motor-driven equipment
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Medical, laboratory, and technical equipment
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Data centers and communication systems
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Any tri-phase installation requiring stable 220V output






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