MODEL NUMBER: DECS 250   

PART NUMBER: 291336; T8.13.160.10; 291367; 291290; 291299; 291342; 291343; 291344; 291345; 291346; 291347.

Contact Inputs: 16 programmable , dry contact

Auxiliary Inputs: 1
Current Input: 4 to 20 mAdc
Voltage Input: –10 to +10 Vdc

Output Contacts:
11 programmable form A
1 watchdog form C

Rating:
Make, break, and carry 7 A
resistive @ 24/48/125 Vdc
(120/240 Vac).
 

The DECS 250 is a digital, 3-phase sensing, permanent magnet generator (PMG) or auxiliary winding powered automatic voltage regulator (AVR) with optional integrated power system stabilizer.

Features

• Precise excitation control for synchronous generator or synchronous motor applications.
• True RMS sensing, single-phase or three-phase voltage and current
• Full generator metering capabilities
• Automatic Voltage Regulation / Field Current Regulation / Field Voltage Regulation, Power Factor and var modes of operation
• Integrated Generator Protection (27/59, 81O/U, 32R, 40Q), EDM, 59F, 51F, Loss of PMG, Field Short Circuit, and 25 Sync Check
• Load sharing over Ethernet • Auto tuning feature with two PID stability groups
• Optional integrated power system stabilizer (PSS), IEEE Std. 421.5 type PSS2A/2B/2C
• Configurable Protection
• Conformal coating is applied to certain internal circuitry for additional protection and reliability
• Overexcitation Limiting (with temperature compensation)
• Underexcitation Limiting
• Stator Current Limiting (with temperature compensation)
• Var Limiting
• Underfrequency Limiting or V/Hz Limiting
• Exciter Diode Monitoring
• Trending, Oscillography, and Sequence of Events Recording
• Sixteen Programmable Contact Inputs
• Twelve Programmable Contact Outputs
• I/O Expansion Module compatibility
  - AEM-2020 Analog Expansion Module
  - CEM-2020 Contact Expansion Module
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