3-Phase Servo Linear Stabilizer – 400 kVA

is a high-performance 400 kVA three-phase servo linear voltage stabilizer from the TPL Series 30%, designed for large-scale industrial and critical commercial applications demanding stable and precise power even with significant input voltage variations. It accepts a 3*400Vac+Neutral input and provides a highly regulated output with an adjustable accuracy of 0.5-1% across an input voltage tolerance of ±30%. This unit is equipped with a full suite of protection features, including over/under voltage, overload, short circuit, over heat, internal bypass, input circuit breaker, SafeStart, phase sequence, phase failure, and a robust ventilation system. An advanced touch screen interface offers detailed monitoring of parameters such as V, I, PF, and T, along with manual interference capabilities and comprehensive fault record management. Communication is seamlessly integrated via Ethernet, USP, MODBUS TCP, and GPRS. With a high efficiency of >98% at full load, a 2-year warranty, and long-term spare part availability, this powerful stabilizer ensures uninterrupted and reliable operation for critical infrastructure and large industrial processes in challenging power environments. Optional enhancements include premium input/output surge arrestors, advanced EMI/RFI filtering, and a sophisticated fire detection and response system. 🔧 Specifications:
• Reference No.: TPL – 3 – 30 – 400000
• Description: 3-Phase Servo Linear Stabilizer
• Model: TPL Series 30%
• Input Voltage (I/P): 3*400Vac + Neutral
• Output Voltage (O/P): 3*400Vac + Neutral
• Accuracy: 0.5-1% Adjustable
• Permissible Tolerance: ±30%
• Power: 400 kVA
• Current: 721.68A
• Frequency: 50Hz-60Hz ±5%
• Ambient Temperature: Up to 50°C
• Protection Degree: IP23
• Protections: Over/Under Voltage, Overload, Short Circuit, Over Heat, Internal Bypass, I/P Circuit Breaker, SafeStart, Phase Sequence, Phase Failure, Ventilation System
• Harmonic Distortion: Nil
• Insulation Class: H
• Insulated Strength: 2500V/min
• Cooling: Natural Air + Fans (Forced Ventilation)
• Admitted Load Variation: 0 to 100%
• Admitted Load Unbalance: Up to 100%
• Admitted Overload: 150% for 1 min
• Control Each Phase: Independent Phase Control
• Correction Time: 20ms/volt (for full regulation)
• Display & Instrumentation: Touch Screen (V,I,PF,T.), Manual Interference, Fault Record
• Communication System: Ethernet, USP, MODBUS TCP, GPRS
• Efficiency: >98% at full load
• Display: LCD Display
• Warranty: 2 years
• Maintenance: Spare parts exist for 25 years
• Weight: 1905 kg
• Dimensions: 2010 × 2320 × 1400 mm
• Option: Input/Output Surge Arrestor (Class I/II), EMI/RFI Filter, Fire Sensor
• IEC Standards: IEC-61558-48, IEC 61000-6-2, IEC 62103, IEC 60529, IEC 61558-2 & IEC 61558-1 💡 Applications:
• Very large industrial plants and heavy machinery operating under significant power fluctuations
• Major commercial and institutional complexes in regions with unstable power infrastructure
• Critical electronic infrastructure requiring highly stable power across a wide input voltage range
• Ensuring consistent and protected power for large-scale operations in challenging electrical environments

Download data sheet