Description

DECS‑150‑5NS1V1NS Generator Excitation Controller

Technical Specifications

• Product Model: DECS‑150‑5NS1V1NS
• Brand: Basler Electric
• Warranty: One Year
• Input Voltage: 85‑265 VAC auxiliary power
• Operating Temperature: ‑40 °C ~ +70 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Excitation control loop <20 ms
• Protection Class: IP20 rack‑mount unit
• Accuracy Class: ±0.5 % FS voltage regulation grade
• Output Frequency: Not applicable
• Rated Current: Exciter field drive output rated accordingly to unit variant
• Function: Digital excitation regulator for synchronous generators; voltage regulation, VAR / PF control, over‑excitation protection
• Communication: RS‑485 Modbus RTU
• System Compatibility: Brush‑type and brushless synchronous generator sets
• Diagnostics: Field over‑current, loss‑of‑excitation, hardware fault LED indicators
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 1.8 kg
• Dimensions: Standard DIN‑rail / rack‑mount footprint
• 

Product Overview

DECS‑150‑5NS1V1NS is digital automatic voltage regulator for synchronous generators. It maintains generator terminal voltage stability, supports VAR and power‑factor control, and integrates multiple excitation‑system protection functions. Widely deployed for diesel‑generator, hydro‑generator and co‑generation power‑units. Modbus RTU supports remote monitoring and parameter setting. Surplus and refurbished tested spare units for power‑plant excitation cabinet overhaul and replacement projects.

Application Notes

‑ Match transformer voltage ratio before commissioning. ‑ Verify field‑wiring connection to exciter field winding. ‑ Complete voltage‑regulation test under no‑load condition before loading generator. ‑ Typical deployment: power‑plant excitation‑controller spare‑part stocking.