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Basler Electric DECS-250-LN2SN1N Digital Excitation Control System

SKU DECS-250-LN2SN1N

Disponibile

12-month warranty
Free returns within 30 days

Manufacturer: Basler Electric
Product No.: DECS-250-LN2SN1N
Origin United States
Product Type: 15-inch display 1024 x 768
Payment: T/T, Western Union
Weight: 6.62 kg
Dimensions: 219.0 mm x 304.8 mm x 159.0 mm (D x H x W)
Shipping port: Xiamen
Warranty: 12 months

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Product Description

Description

The Basler Electric DECS-250-LN2SN1N is a digital excitation control system designed for precise voltage, var, and power factor regulation of synchronous generators and motors. The DECS-250-LN2SN1N configuration integrates a 24/48 Vac/Vdc power supply, internal and external autotracking capabilities, spring type terminals, and a 100Base-T Ethernet communication interface.

Equipped with a pulse-width-modulated (PWM) power stage delivering up to 15 Adc full-load continuous current, the system supports 1-phase or 3-phase true RMS sensing for voltage and current, integrated generator protection, auto-tuning stability controls, and diagnostic logging. Built-in communication interfaces include USB, RS-232, RS-485, CAN bus, and 100Base-T Ethernet for unit-to-unit communication and system setup via BESTCOMSPlus software.

Features

Complete excitation control supporting Automatic Voltage Regulation (AVR), Field Current Regulation (FCR), Field Voltage Regulation (FVR), Power Factor (PF), and var operating modes
True RMS single-phase or three-phase generator and bus voltage sensing
Full generator metering and integrated generator protection functions (27/59, 81O/U, 32R, 40Q, EDM, 59F, 51F, Loss of PMG, Field Short Circuit, and 25 Sync Check)
Pulse-width-modulated (PWM) power stage adaptable to shunt, auxiliary winding, permanent magnet, or DC-fed systems
Auto-tuning feature with two PID stability groups
Overexcitation, underexcitation, stator current, var, and underfrequency / V/Hz limiters
Internal and external autotracking capabilities
Load sharing over Ethernet and Modbus TCP protocol
Conformal-coated internal circuitry for enhanced environmental protection
Integrated trending, oscillography, and sequence of events recording
Compatible with AEM-2020 Analog Expansion Module and CEM-2020 Contact Expansion Module

Applications

Synchronous generator excitation control
Synchronous motor excitation control
Industrial power generation plants
Utility grid-connected power generation facilities

Ordering Information

Style Code Element	Selection Code	Description
Power Supply	L	24/48 Vac/Vdc
PSS	N	None
Autotracking	2	Internal/external autotracking
Terminals	S	Spring type
Synchronizer	N	None
1st Communication Protocol	1	100Base-T Ethernet
2nd Communication Protocol	N	None

Technical Specifications

Parameter	Specification
Manufacturer	Basler Electric
Model	DECS-250-LN2SN1N
Product Type	Digital Excitation Control System
Power Supply Voltage (Style L)	16 to 60 Vdc / 24/48 Vac/Vdc
Power Supply Burden	50 VA or 30 W
Full Load Continuous Output Current	15 Adc
10-Second Forcing Output Current	30 Adc
Power Input Frequency	50 to 500 Hz
Generator & Bus Voltage Sensing Ranges	100/120 Vac +/-10%, 200/240 Vac +/-10%, 400/480 Vac +/-10%, 600 Vac +/-10%
Generator Current Sensing Rating	1 Aac or 5 Aac nominal, 50/60 Hz nominal
Contact Inputs	16 programmable inputs (dry contacts)
Contact Outputs	11 programmable form A contacts, 1 form C contact (watchdog function); rating 7 A resistive @ 24/48/125 Vdc / 120/240 Vac
Auxiliary Input	4 to 20 mA or +/-10 Vdc input
Communication Ports	USB type B, RS-232 (9-pin sub D), RS-485 (Modbus RTU), CAN bus, Expansion Port, 100Base-T Ethernet (Modbus TCP)
Terminal Connection Type	Spring type
Operating Temperature	-40 degC to 70 degC (-40 degF to 158 degF)
Storage Temperature	-40 degC to 85 degC (-40 degF to 185 degF)
Shock Resistance	15 G in three perpendicular planes
Vibration Resistance	5 G from 18 to 2000 Hz in three perpendicular planes
Weight	14.6 lb (6.62 kg)
Dimensions	8.62 in x 12.00 in x 6.26 in (219.0 mm x 304.8 mm x 159.0 mm) (D x H x W)

Installation Guidelines

Mounting: Ensure proper panel mounting with adequate clearance around the enclosure to facilitate airflow and heat dissipation.
Terminal Wiring: Wire dry contact inputs, output contacts, sensing inputs, and power leads to the spring-type terminal connectors in accordance with system schematics.
Shielding & Grounding: Use shielded twisted-pair cabling for analog inputs, auxiliary signals, and communication lines to mitigate EMI/RFI noise.
Communication Connections: Connect Ethernet cables to the 100Base-T port for network communication or unit-to-unit load sharing.

Compliance and Certifications

CSA certified
UL recognized
CE EMC and LVD compliant
EAC certified
Bureau Veritas (BV) recognized
Det Norske Veritas-Germanischer Lloyd (DNV GL) recognized
American Bureau of Shipping (ABS) recognized

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

FAQ

What power supply voltage does this specific excitation control system support?

This model is equipped with Style L power supply options, operating on a nominal 24/48 Vac/Vdc range (16 to 60 Vdc).

What type of wiring terminals are equipped on this unit?

This unit is configured with spring-type terminal blocks for field wiring connections.

What primary network interface is integrated into this controller?

The system features a 100Base-T Ethernet port supporting Modbus TCP protocol and unit-to-unit communication.

Reviews

DECS-250-LN2SN1N

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