AC Control System
LQAC-2025 Manual Control System: Comprehensive Testing Control
Core Measurement Instruments
Winding Measurement Voltmeter: Precision monitoring of test transformer windings
HV Capacitance Divider Voltmeter: Digital display for high-voltage measurements
Input Winding Instruments: Dual-meter system for voltage and current monitoring
Voltage Regulation System
Manual Voltage Control: Precision raise/lower voltage functions
Position Limiting: Upper/lower limit protection
Auto-Return: Automatic return-to-zero function
Safety & Protection Features
| Feature | Function |
|---|---|
| Emergency Stop | Instant system shutdown |
| Audible Alarm | Visual and audible fault indication |
| Door Interlock | Safety chain lock prevents operation when open |
| Over-Current Protection | Automatic cutoff during overloads |
Testing Functions
Withstand Test Timing: Programmable test duration
Step Voltage Testing: Manual voltage ramping capability
Real-time Monitoring: Simultaneous voltage/current display
Physical Specifications
Dimensions: 1050mm (L) × 780mm (W) × 850mm (H)
Weight: <50kg
Enclosure: Steel construction with IP54 protection
Panel Layout: Ergonomically designed control interface
Control Interface Features
Analog meters with mirrored scales for reduced parallax error
Rotary voltage control with torque feedback
Illuminated emergency stop button
Test duration timer with automatic shutdown
System status indicator lights
Wiring & Connections
| Terminal | Specification |
|---|---|
| Test Transformer | 50mm² copper lugs |
| Voltage Divider | BNC connectors |
| Grounding | Dual 16mm² terminals |
| Interlocks | 24V DC safety circuits |
Application Scenarios
Transformer withstand voltage testing
Cable fault location systems
Circuit breaker dielectric testing
Insulation coordination studies
Laboratory high-voltage experiments
Operational Protocol
Verify door interlocks are engaged
Set voltage limits and test duration
Manually ramp voltage at 1kV/s maximum rate
Monitor instruments during test phase
Activate auto-return post-test
Disconnect power before accessing test area
Compliance & Safety Standards
IEC 61010-1: Safety requirements
IEC 60060: High-voltage test techniques
EN 60204: Safety of machinery
ANSI/ISA 82.02: Electrical test equipment
