Cable Test Terminal
CTT 400kV Cable Test Termination - Ultra High Voltage Testing System
Industry-Leading High Voltage Testing Solution
The CTT 400kV Cable Test Termination sets new standards in extra high voltage (EHV) cable testing, featuring unprecedented 1200kV impulse capability and precision partial discharge measurement. Designed for cable manufacturers and high-voltage testing facilities requiring the highest performance levels.
Technical Specifications
Parameter
Specification
Rated System Voltage
400 kV r.m.s.
Partial Discharge Level (at Un)
<2 pC
Rated Lightning Impulse Voltage
1200 kV (Negative Polarity)
Compatible Cable Diameter
133 mm (including insulation)
Power Supply Requirements
220V/20A, 50/60Hz
Maximum Cooling Capacity
120 kW
Water Reservoir Capacity
500 liters
System Pressure Rating
4 atm
Water Conductivity Range
0.1-2 μS/cm
Operating Temperature Range
3°C to 35°C ambient
Cooling Water Temperature
Max 20°C
Minimum Water Flow Rate
45 l/min
Hydraulic Connections
1" pipe with 3/4" head
Main Unit Dimensions
1200 × 1400 × 1700 mm (L×W×H)
Dry Weight
272 kg
Terminal Tilt Angle
35°
Installation Footprint
3600 × 1200 mm (L×W)
Cable Connection Height
1400 mm
Terminal Mounting Height
3700 mm
Minimum HV Clearance
1900 mm
Terminal Assembly Weight
400 kg (pair)
Performance Features
Ultra High Voltage Performance: 400kV AC with 1200kV impulse capability for the most demanding cable testing applications
Precision PD Measurement: <2 pC sensitivity enables detection of minute insulation defects
Advanced Cooling System: 120kW capacity maintains stable thermal conditions during extended tests
Robust Construction: 400kg terminal assemblies ensure vibration-free operation during impulse tests
Safety Optimized Design: 1900mm minimum clearance and 3700mm mounting height ensure operator safety
Industrial Reliability: 4atm pressure rating and wide temperature range for continuous operation
Testing Applications
Type testing of 400kV class extra high voltage cables
Partial discharge location and analysis
Lightning impulse withstand testing (1200kV)
Factory acceptance testing for EHV cable systems
Research and development of next-generation cable insulation
Quality control in high voltage cable manufacturing
Safety & Compliance
The CTT 400kV system exceeds requirements of international standards including:
IEC 60502-4 (Tests on accessories for extruded cables)
IEC 60270 (Partial discharge measurements)
IEEE 400.3 (Guide for Partial Discharge Testing of Shielded Power Cable Systems in a Field Environment)
IEC 60060-1 (High-voltage test techniques)
OSHA 1910.269 (Electric power generation, transmission standards)
Installation & Operation Notes
For optimal performance: ensure minimum 1900mm clearance to grounded objects, maintain water conductivity between 0.1-2 μS/cm, and verify cooling water temperature does not exceed 20°C. The 35° terminal angle provides optimal stress distribution during high voltage tests. The system requires proper grounding per IEC 61936 standards.
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