Water Conditioning Unit
LQCTS-60KW Water Conditioning Unit
Advanced thermal management solution designed for high-voltage cable test terminations, featuring precision temperature control and water deionization capabilities.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 220V/20A, 50/60Hz |
| Max. Cooling Capacity | 60kW |
| Water Capacity | 500 liters |
| Max. Operating Temperature | 60°C |
| Max. Pressure | 4 atm |
| Water Resistivity | >2MΩ·cm |
| Conductivity Range | 0.1-2 μS/cm |
| Min. Flow Velocity | 45 l/min |
| Pipe Connections | 1" inlet/outlet, 3/4" head |
| Dimensions | 1200×1400×1700mm (L×W×H) |
| Weight (dry) | 272kg |
Core Functions
Heat Dissipation: Removes thermal energy from cable test terminations
Water Deionization: Maintains >2MΩ·cm resistivity
Temperature Regulation: Maintains water temperature ≤40°C
Circulation Management: Ensures constant 45 l/min flow rate
Safety & Protection Systems
Low Water Level Protection: Automatic shutdown when level critical
Pump Reversal Protection: Sequence editor prevents reverse operation
Over-Temperature Control: External cooling required above 40°C
Pressure Relief: Automatic venting at 4.2 atm
Conductivity Monitoring: Real-time water quality feedback
System Recommendations
| Test Voltage | Recommended Configuration | Cooling Capacity |
|---|---|---|
| <300kV | 1 × LQCTS-120KW unit | 120kW |
| 400kV | 2 × LQCTS-120KW units | 240kW |
| Long-Term Testing | Add 30% capacity margin | See calculation table below |
Cooling Capacity Calculation
Required capacity = (Cable Losses × 1.3) + Ambient Heat Gain
Example: 500kV system with 45kW cable losses:
Minimum requirement: 45 × 1.3 = 58.5kW → Select 60kW unit
Operational Guidelines
Startup Procedure
Verify water level at maximum
Check conductivity (0.1-2 μS/cm)
Confirm inlet water temperature ≤20°C
Inspect sequence editor status
Engage circulation system
Troubleshooting
No Circulation:
Check water level sensors
Verify pump reversal protection
Inspect sequence editor
Temperature Rise:
Verify external cooling activation
Check flow velocity (min. 45 l/min)
Clean heat exchanger surfaces
Conductivity Issues:
Replace deionization cartridges
Check for contamination
Verify water quality sensors
Installation Requirements
| Parameter | Requirement |
|---|---|
| Power Connection | 220V±5%, 20A dedicated circuit |
| Water Supply | Deionized water source |
| Ambient Temperature | 3°C to 35°C |
| Clearances | Front: 1000mm, Sides: 500mm |
| Foundation | Level surface with vibration isolation |
| External Cooling | Required when water temp >40°C |
Maintenance Protocol
Daily:
Check water level and conductivity
Verify temperature readings
Weekly:
Test safety interlocks
Inspect pipe connections
Monthly:
Replace deionization cartridges
Clean filtration system
Calibrate sensors
Quarterly:
Full system flush
Pump maintenance
Heat exchanger inspection
Annual:
Pressure vessel certification
Electrical safety testing
Control system software update
Critical Performance Impacts
Insufficient Cooling: Reduces quality factor and causes test failures
High Conductivity: Increases partial discharge levels
Low Flow Rate: Causes localized heating in terminations
Temperature Excursions: Accelerates cable aging during tests
Solution: Always select units with 20-30% capacity margin above calculated requirements.
Compliance Standards
IEC 60519: Safety requirements for electroheat installations
IEC 61010: Safety requirements for electrical equipment
ISO 9001: Quality management systems
ASME BPVC: Pressure vessel certification
