400kV ~ 600kV Range

LQHVF 450kV/12,000pF Dual-Function HV System | ≤2pC PD & ±1% Accuracy

Massive 12,000pF coupling capacitor & voltage divider with ≤2pC partial discharge, ±1% accuracy, 495kV withstand & 60-min continuous operation. ONAN cooling system.

US$ 14,117.00
Lead time: 30days

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Product Details

Product Tags

LQHVF 450kV/12,000pF Dual-Function Coupling Capacitor & Voltage Divider

Industrial-scale dual-purpose solution delivering both power line communication coupling and precision voltage measurement with industry-leading ≤2pC partial discharge performance.

Record Capacity: Highest 12,000pF dual-function solution at 450kV - ideal for utility-scale power systems

Technical Specifications

Parameter	Specification	Test Standard
Rated Voltage	450kV	IEC 60060-1
Rated Capacity	12,000pF	IEEE 4
Operation Frequency	60Hz	IEC 60076
Partial Discharge	≤2pC @ 100% rated voltage	IEC 60270
Dielectric Loss	<0.3%	IEC 60422
Measuring Accuracy	≤±1%	IEEE 112
Dividing Ratio	1000:1	N/A
Continuous Operation	60 minutes @ 100% rating	IEEE C57.91
Insulation Withstand	495kV (110% rated) for 1min	IEC 60071
Cooling System	ONAN (Oil Natural Air Natural)	IEEE C57.12.00
Configuration	Two capacitors in series	IEC 60158
Energy Storage	1.22 kJ @ 450kV	N/A

Dual-Function Capabilities

High-Capacity Coupling

12,000pF capacity for power line carrier communication
60Hz optimized signal injection
Simultaneous PD monitoring

Precision Voltage Measurement

1000:1 nominal dividing ratio
≤±1% measurement accuracy
Single and two-stage serial measurement

Integrated System Advantage

Space-saving dual-function solution
50% reduction in installation footprint
Unified calibration for both functions

Industrial Performance Features

Ultra-Low Partial Discharge

≤2pC at 450kV (100% rated voltage)
Detects microscopic insulation defects
Industry-leading sensitivity

Massive Energy Handling

12,000pF capacity - 8x standard units
1.22 kJ energy storage capability
Ideal for high-power systems

Robust Insulation System

495kV withstand capability
Dual-capacitor series design
Zero abnormal discharge during testing

Heavy-Duty Design

Industrial Corona Management

Aerospace-grade aluminum corona rings
Segmented design for transportation
Corona-free HV connections

Reinforced Stability Pedestal

Engineered for seismic stability

Tool-free assembly/disassembly

Integrated measurement ports

Advanced ONAN Cooling

Optimized for high-capacity operation
Maintains <0.3% dielectric loss
Natural convection thermal management

Performance Validation

Test Parameter	Result	Industry Benchmark
Partial Discharge @ 450kV	≤2pC	5-10pC (typical)
495kV Withstand	No discharge	110% rated standard
Continuous Operation	60 minutes stable	30-45 min (typical)
Energy Storage Capacity	1.22 kJ	0.15 kJ (typical)