Solusyon sa Aplikasyon para sa Circuit Breaker Simulator 861 sa mga Sistemang Pwersa
Ang circuit breaker simulator usa ka importante nga key device alang sa pag-protect ug training sa power system. Ini nagpadayon sa safe ug efficient nga pagkumpleto sa kompleto nga set tests para sa relay protection systems sanlag dili maapektuhan ang tun-aw nga high-voltage circuit breakers. Ang makalaan kini nagsugyot sa application sa Circuit Breaker Simulator 861, nag-explore kung unsaon ni siya maoresolbar sa core challenges sa testing ug training sa power system.
I. Challenges sa Power System Testing ug Training
Sa panahon sa relay protection commissioning, periodic testing, ug personnel training sa power systems, ang direkta nga paggamit sa high-voltage circuit breakers para sa repeated open/close operations nagpakita og pipila ka problema:
- Equipment Wear: Ang high-voltage circuit breakers adunay limitado nga mechanical lifespan; ang frequent operation moghatag og daghang aging.
- High Testing Costs: Ang pag-operate sa tun-aw nga circuit breakers magkonsumo og daghang energy, ug ang outage testing maapektuhan ang normal nga system operation.
- Safety Risks: Ang direct operation sa high-voltage equipment moghatag og safety hazards, lalo na sa mga bag-ong personnel sa training.
- Lack of Flexibility: Ang parameters sa tun-aw nga circuit breakers fixed, mahadlok ra gyud sila sa pag-simulate sa pipila ka abnormal conditions ug time characteristics.
II. Solutions Ginhatag sa Circuit Breaker Simulator 861
Isip advanced nga simulation testing device, ang Circuit Breaker Simulator 861 nag-resolve sa gihatag nga challenges pinaagi sa highly realistic nga simulation. Ang iyang main technical features ug application advantages mao kini:
1. Highly Realistic Simulation Capability
- Time Characteristic Simulation: Makakapilaog sa accurate nga simulation sa circuit breaker trip time (20-200ms) ug close time (20-500ms) ngadto sa error nga dili mas dako sa ±5ms, realistic nga reproduction sa operating characteristics sa different nga circuit breaker models.
- Three-Phase/Phase-Segregated Operation: Nag-suporta sa both three-phase simultaneous operation ug phase-segregated operation modes, adapting sa simulation needs sa circuit breakers sa different voltage levels (6kV to 750kV).
- Adjustable Impedance: Trip/close coil impedance mahimo mosangpot sa multiple settings sama sa 100Ω, 200Ω, 400Ω, etc., matching the actual coil parameters of field circuit breakers.
2. Intelligent Control and Protection
- Multiple Control Modes: Nag-suporta sa remote automatic control ug manual operation, facilitating field commissioning.
- Self-Protection Functions: Built-in comprehensive protection mechanisms ensuring the device remains undamaged under any abnormal conditions.
- Clear Status Indication: Equipped with trip/close signal indicator lights (red light indicates closed, green light indicates tripped), displaying the circuit breaker status in real-time.
3. Flexible Application Adaptability
- Wide Voltage Compatibility: Operating power supply voltage supports both DC110V and DC220V specifications, with automatic adaptation capability.
- Various Mounting Structures: Can be provided in portable or panel-mounted structures to suit different needs for field testing or fixed installation.
- Isolated Output Contacts: Output contacts are completely isolated from the operating power supply, allowing direct integration with microprocessor-based relay protection test equipment.
III. Typical Application Scenarios
1. Complete Relay Protection System Testing
For new substation commissioning or after protection device replacement, use Simulator 861 for trip/close tests to verify the correctness of the entire loop from the protection device issuing a signal to the circuit breaker executing the action, avoiding direct operation of the actual high-voltage circuit breaker.
2. Personnel Training and Skill Assessment
In training centers, this device can simulate various normal and fault conditions, allowing trainees to master circuit breaker operation procedures and fault handling skills in a risk-free environment, significantly improving training effectiveness and safety.
3. Protection Device R&D Verification
Protection device manufacturers can use Simulator 861 for product testing, simulating different circuit breaker characteristics to verify the compatibility and reliability of protection devices, thereby shortening the R&D cycle.
4. Accident Replay and Analysis
When a system fault occurs, use the simulator to recreate the accident scenario, analyze the protection operation behavior, and provide a reliable basis for accident investigation.
IV. Key Technical Implementation Points
- Parameter Setting: Correctly set trip/close times, impedance, and other parameters based on the actual parameters of the simulated circuit breaker to ensure simulation authenticity.
- Wiring Check: Carefully check the operating power supply voltage selection (DC110V or DC220V) and its compatibility with the control circuit before testing.
- Test Verification: Utilize the built-in auxiliary test circuit and a millisecond meter to accurately measure the time from protection device operation to the simulated circuit breaker action.
- Safety Measures: Even though it is a simulation device, it is still necessary to follow site safety regulations to ensure the testing process is safe and controlled.
V. Application Benefit Analysis
- Economic Benefits: Significantly reduces the number of operations of actual circuit breakers, extends equipment lifespan, and lowers maintenance costs.
- Safety Enhancement: Avoids direct contact with high-voltage equipment by personnel, reducing safety risks.
- Efficiency Optimization: The testing process is not constrained by outage schedules, accelerating project commissioning and protection setting verification progress.
- Training Effectiveness: Provides a platform for repeated practice, enhancing personnel skill levels and reducing the possibility of misoperation.
