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Excitation regulation

  • XES-07 Excitation Device Controller
  • XES-07 Excitation Device Controller
  • XES-07 Excitation Device Controller
  • XES-07 Excitation Device Controller
  • XES-07 Excitation Device Controller
  • XES-07 Excitation Device Controller
XES-07 Excitation Device Controller XES-07 Excitation Device Controller XES-07 Excitation Device Controller XES-07 Excitation Device Controller XES-07 Excitation Device Controller XES-07 Excitation Device Controller

XES-07 Excitation Device Controller

  • Product description: XES-07 Excitation Device Controller
  • Order online
I. Overview
XES-07 excitation controller is a 32-bit all-digital excitation controller independently developed by our company. This controller is a high-end excitation controller with a full Chinese LCD display. All parameter settings are displayed in the Chinese menu. The tube display is more intuitive and convenient. The entire controller is composed of a 4-layer circuit board and an LCD display. It is simple, convenient, and powerful, with functions such as excitation, speed measurement, protection, and measurement. It is mainly suitable for three-phase half-control, single-phase half-wave and single-phase full-bridge and half-control generator excitation devices. It is the first choice for excitation manufacturers, generator manufacturers, automation monitoring manufacturers for supporting production and power station excitation transformation.
Application
2.1 Type of main excitation system
Three-machine excitation system (including brushless)
DC Exciter System
Two-machine AC excitation system (including brushless)
Self-excitation magnetic system
2.2 Type of voltage transformer
100V or 400V
2.3 Type of current transformer
5A or 1A
2.4 Rectifier bridge type
Three-phase half-control, single-phase half-control, single-phase full-control
Third, the main features
l Integrated design: small size and strong function. Automatic voltage regulator based on 32-bit microprocessor design, powerful, modular and sealed structure, integrating control unit, sampling unit and power supply unit.
l Unique "black" start-up function without electricity: without any power supply, using the generator residual voltage (minimum 3V), the excitation regulator can be easily started to achieve the normal boost of the generator
l Special program and hardware circuit design: classic control theory + intelligent adjustment mode selection, which greatly improves the stable operation of the generator caused by poor load stability, unstable system cycle, and large voltage fluctuations.
l High reliability and high intelligence: hardware and software modular design and EMC design, strong anti-interference ability, intuitive and easy operation and maintenance, effectively solving the problems of poor actual production environment of rural small hydropower and uneven quality of operators
l Perfect function: It can realize various functions that the automatic excitation regulator should have
l Chinese LCD display: full Chinese LCD display, user-friendly parameter setting.
Fourth, the main function
◆ Constant voltage, constant current, constant power factor, constant angle and other adjustment methods;
◆ Black start-up function (without any external power supply, one-button start-up start-up pressure can be established)
◆ Generator over-current and over-voltage protection function
◆ generator frequency overspeed protection
◆ Generator electrical measurement (three-phase voltage, current, active power, reactive power and all other electrical parameters)
◆ GPS clock synchronization
◆ Maximum excitation current value (inverse time limit) limit and strong excitation inverse time limit limit;
◆ Under excitation limit + demagnetization protection function;
◆ Software phase shift and adjustment;
◆ Automatically track system voltage or given voltage;
◆ generator PT disconnection monitoring and automatic switching protection;
◆ On-line parameter modification and real-time parameter display;
◆ Real-time data recording;
◆ device self-diagnosis and recovery;
◆ Fault recording;
◆ software self-checking and fault tolerance;
◆ Adjustable variable structure, variable parameter parallel PID regulation;
◆ Remote control and local control functions;
◆ Can communicate with host computer by RS485 (MODBUS) or Ethernet;
◆ Can use switch value as interface
◆ One-button start and stop function
◆ 5 output relays for alarm indication and trip function

Five, XES-07 excitation system function
XES-07 excitation controller is a microprocessor-based control device. Through the collection and conversion of various types of electricity and software calculations, various state signals and control signals of the power unit are output, and the AC excitation power source is changed to a controllable DC output control to achieve the generator excitation control.
XES-07 excitation controller adopts sealed components and post-board installation design and is fixed in the excitation control cabinet. The front LCD LCD Chinese display is used to indicate the status of XES-07 and system operating conditions. The rear panel wiring uses European-style quick connection terminals. The RS485 and RS232 ports on the rear panel are used for XES-07 communication with the host computer and PC.
Six, the main performance parameters
◆ Machine terminal voltage measurement UF: 400V or rated value of voltage transformer secondary side 100V
◆ Stator current measurement IF: rated value 5A input or 1A input
◆ Rotor current measurement IL: Hall current sensor measures 0 ~ 100mA
◆ Trigger pulse frequency: 10KHz
◆ Analog input channels: 16
◆ Digital input: 12 channels
◆ Digital output: 8 channels
◆ Auto / manual adjustment range: (10 ~ 130)% of rated value
◆ Excitation: The overshoot is less than 1% of the rated value, the excitation time is less than 2.5 seconds, and the number of oscillations is less than 1
◆ Adjustment rate: software reactive power adjustment ± 15%
◆ Voltage regulation accuracy: no more than ± 0.5%
◆ Thyristor phase shift range: 5 ~ 145 °
◆ Thyristor control angle resolution: 1/20000
◆ Excitation system can meet the manual and automatic quasi-synchronous grid-connected power generation of the unit
◆ Guaranteed long-term operation at 110% excitation current
◆ The operating frequency of the unit changes by 1%, and the change of the rated terminal voltage is not greater than 0.1%
◆ When the terminal voltage drops to 80% of the rated value, it provides more than twice the strong excitation current for a duration of not less than 20 seconds
◆ Excitation system voltage response time: rise time is less than 0.08 seconds, fall time is less than 0.15 seconds
◆ Voltage response ratio is not less than 2 units / second
◆ Regulation accuracy of automatic excitation regulator is less than 0.2%
◆ Excitation PT is equipped with disconnection detection, automatic switching and protection, and concurrent signals
◆ Fault signal alarm output
◆ Under-excitation limit function
◆ Strong excitation limit value function and strong excitation inverse time function
◆ With remote control and local control functions
◆ Regulation accuracy of automatic excitation regulator is better than 0.1% of rated voltage
◆ Can communicate with host computer by RS485 or Ethernet
◆ Can use switch value as interface
◆ Voltage response ratio is not less than 2 units / second

contact us

CONTACT US

Contact: Mr. Huang

Mobile: + 86-18942948612

Phone: + 86-027-59200207

Email: market@hhzs68.com

Address: Wuhan East Lake High-tech Development Zone, Wuhan University Science and Technology Park, Wudayuan 1st Road, 9-2