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Description:
A factory substation with two-line 35kV lead-in power supply is simulated, which one line is lead to the branch factories, the other is sent to workshop substations after being reduced to 10kV by step-down transformer. Functions: 1. Simulation of factory substation, low voltage load and high voltage load. 2. Simulation of the three stating modes of motor (power loading). 3. Intelligent control device: microprocessor-based line protection, microprocessor-based motor protection, microprocessor-based backup power supply auto-switch, intelligent reactive compensation, etc. Microprocessor-based line protection device: functions of 3-section over current protection, low-voltage latching current protection, single-phase ground protection, inverse time lag over-current protection and cooperation of step over current protection and automatic reclosing. The measuring accuracy level of voltage and current are 0.5. Microprocessor-based motor protection device: Functions of current quick-break protection, over-current protection, current inverse time lag protection, zero-sequence over current protection and low-voltage protection, etc. The measuring accuracy level of voltage and current are 0.5. Microprocessor-based backup power supply auto-switch device: three modes (lead-in line, bus and emergency); on-line setting of the auto-switch time and voltage; monitoring of 12-channel analog and 10-channel switching value. The measuring accuracy level of voltage and current are 0.5.
Details:
Comprising analog line and factory substation unit, dummy load unit, factory line protection unit, motor
protection unit, reactive compensation unit, backup power supply auto-switch unit, monitoring unit and
instrumentation unit.
| 1. Analog line and
factory substation unit
| Including line reactance, breaker, disconnection switch and transformer.
| | Comprising high voltage load and low voltage load. The high-voltage load is composed
of motor set, and low-voltage load includes lighting load, power load, cooling fan,
emergency lighting, fire fighting apparatus, ventilation and explosion prevention.
| 3. Factory line
protection unit
| Comprising fault setting circuit, voltage transformer, current transformer, factory
microprocessor-based line protection device and stopwatch.
| | Comprising motor set, frequency converter, excitation circuit and motor starting
circuit.
| 5. Reactive
compensation unit
| Comprising intelligent reactive compensation device, compensation capacitance,
compensation indicator circuit and RC absorption circuit.
| 6. Backup power supply
auto-switch unit
| Comprising power failure setting unit, voltage transformer, current transformer,
microprocessor-based backup contention switch.
| | Comprising touch screen (display area: 10.4), PLC controller and intelligent sampling
module.
| | Comprising seven AC voltmeters and six AC ammeters.
Name Range Accuracy level Qty.
AC voltmeter 0~40kV 1.5 3
AC voltmeter 0~500V 1.5 4
| | Microprocessor-based line protection
1. Microprocessor-based line protection device
2. Current quick-break protection without time lag
3. Current quick-break protection with time lag
4. Over current protection with constant time lag
5. Over current protection with inverse time lag
6. Interlock protection of current and voltage
7. Single-phase ground protection
8. Stepped over current protection and automatic relcosing former acceleration
9. Stepped over current protection and automatic relcosing back acceleration
Auto device in power distribution system
10. Backup power supply auto-switch device
11. Backup power supply auto-switch
12. Low voltage load reduction
13. Reactive compensation device
14. Reactive automotive compensation
15. Simulation of factory power supplying switching operation
Power distribution automation
16. Orientation, isolation of line faults and auto-restoring of power supply
17. Detection of line parameters
18. Line reactive control
19. Line voltage adjustment
20. Line voltage/reactive integrated control
21. Telemeter, telecontrol, teleregulation and telesignal
| | C3.06/256M/80G/DVD/17 pure flat
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