Hydro Power Plant Compact High Efficiency Control Cabinet

Model NO.
SC
Customized
Customized
Material
Aluminum Alloy
Transport Package
Plywood Box
Origin
China
HS Code
850239000
Production Capacity
500 Set / Year
Reference Price
$ 18,000.00 - 90,000.00
Contact Us

Product Description

Hydro power plant cabinet (control, protection, measurement, monitoring and so on)

Hydro Power Plant Compact High Efficiency Control Cabinet Hydro Power Plant Compact High Efficiency Control Cabinet

1. Microcomputer-based Excitation Panel
Scope of application: Microcomputer-based Excitation Panels are suitable for excitation adjustment and control of various synchronous generators and motors under 300 MW, can fully meet the operating conditions of power plants and mines, and realize "unattended" (or fewer operators)
Product Features :
1) Dual-microcomputer automatic adjustment. One is for hot standby; another additional set with manual adjustment is for redundancy support, the two can achieve independent, automatic and worry-free shift, and do not affect each other in input, output and adjustment, so as to ensure the other set can still work properly when one fails to work.
2) Each standard excitation adopts over voltage, over current protection and lightning protection devices.
3) The PID intelligent expert adjusting system is adopted; having five operating modes (constant voltage, constant current, constant power factor, constant reactive power and constant control angle); under fault conditions (such as PT disconnection), all modes can shift with each other automatically.
4) Each set of excitation adopts AC and DC dual power supply. Failure of any power supply will not affect the system's work.
5) A PT monitoring device is equipped. When PT of one circuit breaks, PT of another circuit will be shifted on automatically without disturbance.
6) A test device is provided, which has perfect online detection function and can detect the integrity of the excitation system during repair or overhaul.
7) Generator loss of excitation protection function is presented at any time. When loss of excitation incurs, the set will alarm and trip automatically.

Main Functions:
(1) Maximum excitation current limit and strong excitation reverse time limit
(2) Under excitation limit + loss of excitation protection function
(3) PSS function
(4) Software phase-shift and difference adjustment
(5) Automatic tracking system voltage
(6) Current limit in case of device blowing-out, silicon controlled failure and part ablation
(7) Generator PT breaking monitoring and protection
(8) Online parameter modification and real-time parameter display
(9) Real-time data recorder


2. Integrated Automation System of Power Plants
Scope of Application:
Control, protection, measurement, signal, remote control, video and other automatic functions
for hydropower stations, thermal power plants
Standard Function Configuration:
(1) Protection Function
Generator differential protection (Longitudinal differential protection and transverse differential protection), composite voltage locking over current protection, current instantaneous break protection, over voltage protection, stator ground fault protection, rotor ground fault protection, reverse power protection (lock-rotor), loss of excitation protection, overload alarm, zero sequence over-voltage protection and low voltage protection
(2) Remote Control Function:
Switch trip, automatic starting up and shutdown of sets, opening regulation, rotation speed regulation, gate valve control, etc.
(3) Telemetry
AC sampling is conducted by precision small PT and CT directly to all electric quantity and Fourier algorithm is adopted, can measure return circuit U, I, P, Q, F, COSφ, Varh and many other parameters and directly display the actual value measured once; can accept transformer temperature and measured bearing temperature value sent by the temperature sensor and measured values of pressure, flow and water level sent by transmitter.
(4) Remote Signaling Function
External remote signaling: Switch position, disconnecting link position, handcart position, energy storage state and switching value signals sent by units and auxiliary machines.
Remote signaling of accidents: Differential motion, overvoltage, loss of excitation, quick break, over-current, heavy gas and other electrical accident signals.
Remote signaling of faults: Overload, light gas, over-temperature, grounding, control circuit break, bearing temperature increase, cooling water interrupt signal, etc.

3. Set Automation Panel
Automatic control, protection and monitoring of generator sets
Main Features:
1. Set automation control system composed of foreign grade-A brand programmable controller (PLC) and imported drive relay, which features high degree of automation, rapid response to fault processing, reliable action, strong anti-interference ability, simple design and convenient maintenance.
2. According to the different configuration of the set, PLC software control programs can be modified on site to meet the needs of normal operation of the generator system and thus improve the flexibility and adaptability of the control system.
3. The implementation of a program of one generating set corresponds to a set of site control system makes the real-time monitoring and protection accurate and reliable; and realizes the remote monitoring and operation of generator system.
4. PLC system progress storage and user program storage areas have power down holding function and the running program can be permanently stored.
Control Functions
(1) Automation of the starting up and shutdown processes
(2) Manual and automatic control of accident shutdown and emergency shutdown
(3) Automatic and manual opening regulation, rotation speed (active power) regulation, excitation (reactive power) regulation
(4) Automatic and manual shift between power generation to swapping phase and swapping phase to power generation
(5) Automatic control of governor oil pump
(6) Manual and automatic control of main valve (butterfly valve and ball valve, etc)
(7) Automatic control of set auxiliary equipment and plant public facilities (oil pressure devices, compressed air installations, technical water supply systems, water catchment and drainage devices, etc.)
Protection Function
Protection in Shutdown Because of Accidents :
(1) Bearing temperature is too high; (2) Electrical accident; (3) Reduction of hydraulic accidents; (4) Interruption of spare cooling water; (5) Fault signal caused by over-speed operation of the set
(1) Bearing temperature increases; (2) Cooling water interrupts; (3) Air cooler temperature increases; (4) Abnormal oil pressure and oil level; (5) Starting-up and shutdown are not finished; (6) Water level of head cover of the turbine is too high; (7) Standby lubricating oil inputs; (8) Sump water level is abnormal; (9) Shear pin breaks; (10) PLC fault

4. Main High-voltage Switchgear
HXGN Box Fixed Metal-enclosed Switchgear
Scope of Application: This equipment is mainly used in looped network or terminal power supply system with a rated voltage of 12KV and a rated frequency of 50HZ, playing a role of accepting distributed electric energy or over-load short-circuit protection.
Main Features:
1. Small size, especially suitable for high-voltage power supply of box-type substations and other occasions with small installation space;
2. Internal is mainly equipped with load switch;
3. Simple configuration.
Reliable Indicators:
1. Strong mechanical operating performance;
2. Safe and reliable interlocking;
3. KYN28A-125 indoor metal armored pull-out switch cabinet
Scope of Application: This equipment is mainly installed in power plants with a rated voltage of 12KV and a rated frequency of 50HZ, power transmission of small and medium-sized generators, power distribution of industrial and mining enterprises and units, as well as the power-receiving, transmission and large high-voltage motor staring of secondary substations of the power system.
Main Features:
1. Aluminum-zinc steel sheet shell has strong anti-corrosion and anti-oxidation performance;
2. Functional unit compartment;
3. Reliable "five-defense" functions
4. Vacuum circuit breaker selects pull-out VS4 or VD4, model selection and convenient operation and maintenance.
Reliable Indicators:
1. Independent functional units isolate fault and improve protection
2. Unique "five-defense" functions, safe operation and maintenance; withdrawable main components, convenient and reliable maintenance and replacement.


5. Low-voltage Withdrawable Switchgear LV
Scope of Application: Low-voltage withdrawable switchgears are suitable for power plants, substations, petrochemical, metallurgy, steel rolling, transportation power supply, light industry, textile and other factories, enterprises, residential areas and high-rise buildings and used for electric energy transformation, distribution and control of distribution equipment of the power system with AC, 50Hz and a rated operating voltage of 660 V or below.
Main Features:
Modularized standard profiles, convenient and flexible assembly and installation;
Closed vertical busbar channel;
Centralized once and secondary feed-out wiring;
Functional unit compartment; every outlet unit is a drawer
Reliable Indicators
Unit separation, fault isolation;
Interlocked operation, safe operation and maintenance;

6. High-step Switching DC Power Supply System
Scope of Application: Applicable to thermal power plants, hydropower stations, substations, switching stations, mining, petrochemical, railway and other fields, used as operation power source and accident lighting power supply of relay and automation equipment of the power system; and also can be applied to all other places in need of DC power supply.
Main Features:
(1) Adopt the unique modular design of high frequency switching power supply, N+1 hot standby and high reliability;
(2) Adopt intelligent high-frequency switching rectifying technology and implement intelligent charging management for battery;
(3) High-precision dynamic equalized flow, can run independently, under master control or under control;
(4) Have perfect "eight capsule" 1 functions and achieve unattended;
(5) Charging module can be hot plug; convenient installation and maintenance;
(6) Large-screen LCD, friendly and rich interfaces, sound and light alarms;
(7) Power supply power is greater than 90%, power factor is greater than 0.99 and no power grid harmonic pollution;
(8) Can set parameters of all parts of the system through the monitoring modules;
(9) Reliable lightning protection and a high degree of electrical insulation protection measures;
(10) Simple screen assembly and flexible configuration.

7. Integrated Automation System of Substations
Scope of Application:
Control, protection, measurement, communications and other automation functions in substations, pumping stations and switching stations.
Functions and Standard Configurations:
(1) Protection function, distance protection, composite voltage lockout three-section directional overcurrent protection, main transformer differential (second harmonic braking), differential instantaneous trip protection, heavy gas protection, light gas signal, adjust heavy gas protection, adjust light gas signal, overload alarm, overload interlocking OLTC protection, PT disconnection detection, pressure release, cooler failure, overvoltage protection, undervoltage protection, small current grounding line selection.
(2) Monitoring and control functions, remote control, telemetry, remote signaling and remote regulating functions



 

 

Electrical Control System

UKSONO.COM, 2023