Equipment and spare partsBrowse manufacturers Search by manufacturerGENERATOR EXCITATION AND POWER AUTOMATION SYSTEMS
Specify packaged DECS digital excitation systems, DGC-2020 genset paralleling panels, and BE1 protective relays engineered for your plant generation assets.
Choose an equipment category. Attach a project specification, nameplate photograph or engineering brief to make your request precise.
Complete microprocessor excitation control systems Series DECS deliver precise automatic voltage regulation for synchronous generators in gas turbine, steam turbine, diesel and hydro generation assets.
The systems implement dual PID algorithms with integrated overexcitation and underexcitation field current limiters.
Selection parameters: generator rating (kVA), stator voltage, rated field current and exciter resistance.
Programmable microprocessor controllers DGC-2020 provide automatic engine sequencing, generator protection, and precise automatic synchronizing for multiple generator sets paralleling together or against a utility grid with soft load ramping.
Specify prime mover type, communication protocols (Modbus/CAN), number of parallel gensets and ATS logic.
Numerical protection terminals Series BE1-11g and BE1-11t deliver high-speed selective protection for synchronous generators, step-up transformers and distribution switchgear. The relays provide continuous electrical metering and high-resolution COMTRADE event oscillography.
Specify CT secondary nominal current (1A or 5A), one-line diagram and required protection ANSI elements.
Automatic voltage regulators Series AVC63-4, AVC63-7 and AVC125-10 regulate output voltage across industrial brushless synchronous generators. Encapsulated moisture-proof housings shield power electronics from corrosive environments and machine vibrations.
Specify generator rated terminal voltage, continuous exciter field current and excitation configuration.
Hardware modules LSM-2020 and CEM-2020 interface with DGC-2020 controllers to build multi-unit power generation plants. The modules deliver isochronous active and reactive load sharing without frequency droop or voltage variations on common switchboard busbars.
Specify number of generator units, inter-module communication topology and required discrete I/O counts.
Power semiconductor assemblies and thyristor bridges convert AC exciter supply power into controlled DC field current for generator rotors. The units are engineered for continuous full-load duties and high momentary field forcing under grid disturbances.
Specify ceiling field current, AC input voltage rating and cooling arrangement (forced or natural air).
Instrument current and potential transformers step down high-voltage bus parameters to feed Basler Electric regulation and protective devices. Control power transformers supply galvanically isolated auxiliary power to control cabinets and switchgear automation.
Specify primary voltage rating, secondary output, accuracy class and rated burden capacity (VA).
The integrated BESTCOMSPlus software and communication environment enables parameter configuration, commissioning, real-time electrical metering, and diagnostics across Basler Electric devices over secure Ethernet, USB and RS-485 connections with custom programmable logic.
Specify connected device models, required network topology and host plant SCADA operating platform.
Generator rated kVA, stator voltage, rated exciter DC current and resistance, ceiling forcing voltage requirement and SCADA network protocols.
Regulator model (DECS, AVC), DGC controller part number, BE1 relay style number, serial code and required replacement boards or power modules.
Basler Electric Series DECS excitation systems are engineered according to generator nameplate parameters: rated apparent power in kVA, nominal stator line voltage, continuous exciter field current, and field winding voltage.
To ensure exact matching, state field winding cold and hot resistance alongside maximum transient ceiling current ratings. Complete excitation enclosures integrate auxiliary station service transformers, high-speed thyristor rectifier modules, and transient surge suppression networks.
DECS digital regulators provide multiple software-selectable operational modes: terminal voltage control (AVR), power factor regulation (cos φ), reactive power control for grid-connected operations, and manual field current regulation (FCR).
The BESTCOMSPlus engineering suite enables custom programming of overexcitation limit curves (OEL) to prevent rotor thermal overloading during sustained power grid voltage depressions.
Microprocessor-based DGC-2020 controllers automatically adjust engine governor speed and generator excitation voltage to align frequency and phase angle with busbar parameters before breaker closure.
The predictive breaker closure feature factors in breaker physical closing time, eliminating damaging electrical transients. A supplementary semi-automatic synchronizing screen provides an intuitive visual synchroscope for plant operators.
For multi-engine isolated power stations, LSM-2020 load sharing modules provide seamless proportional balance across paralleled gensets. The modules generate analogue trim corrections transmitted across dedicated shielded communication lines to speed governors and DECS voltage regulators.
This eliminates circulating reactive cross-currents and maintains nominal system frequency and voltage regardless of sudden load shifts.
Multifunctional numerical generator protection relays BE1-11g provide complete ANSI/IEEE protective functions for mission-critical power generation.
The relay incorporates phase differential protection (87G), stator ground fault detection (59N/64G), loss of field excitation (40Q), reverse power flow (32R), and negative sequence thermal overcurrent protection (46) with continuous diagnostic self-testing.
For generator step-up and station auxiliary transformers, BE1-11t terminals deliver high-speed percentage-restrained differential protection (87T) with harmonic restraint preventing false trips during transformer energisation inrush.
The terminal features programmable internal phase angle and ratio compensation algorithms, eliminating external interposing current transformers.
5 MW, analogue regulators Series AVC63-4, AVC63-7, and AVC125-10 provide dependable brushless excitation control.
Powered by stator auxiliary windings or permanent magnet generator (PMG) sub-exciters, their polyurethane-encapsulated solid-state architecture withstands continuous engine vibrations, oil vapour, and extreme ambient operating temperatures.
CEM-2020 expansion modules interface directly with DGC-2020 genset controllers via CANbus serial topology, delivering additional programmable digital inputs, relay outputs, and RTD temperature channels for Pt 100 sensors.
These expansion blocks facilitate comprehensive plant pre-alarm and shutdown monitoring across engine lube oil, coolant, and bearing temperature zones.
0. Remote telemetry, real-time generator electrical metering, breaker status signals, and fault event records are transferred directly to central plant DCS networks without third-party protocol converters.
We supply customized Basler Electric power equipment matched to your industrial generation facility: packaged excitation cubicles, paralleling switchboards, or discrete protective relays.
System specifications, terminal diagrams, factory configuration files, and delivery schedules are agreed during technical proposal stages. All equipment shipments include manufacturer data sheets and test documentation.
Select an equipment direction or submit generator parameters with your contact details. Regulator sizing, excitation power modules and documentation are agreed in one enquiry.
English-speaking contact