400kV ~ 600kV Range

LQHVF 450kV/1000pF Dual-Function HV Solution | ≤2pC PD & ±1% Accuracy

Premium 450kV coupling capacitor & voltage divider with ≤2pC partial discharge, ±1% accuracy, 495kV withstand & 60-min continuous operation. ONAN cooling system.

US$ 9,967.00
Lead time: 30days

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Product Details

Product Tags

LQHVF 450kV/1000pF Dual-Function Coupling Capacitor & Voltage Divider

Premium integrated solution delivering both power line coupling and precision voltage measurement with industry-leading ≤2pC partial discharge performance.

Dual-Function Excellence: Only 450kV solution combining communication coupling and measurement with ≤2pC PD at full load

Technical Specifications

Parameter	Specification	Test Standard
Rated Voltage	450kV	IEC 60060-1
Rated Capacity	1000pF	IEEE 4
Operation Frequency	50Hz	IEC 60076
Partial Discharge	≤2pC @ 100% rated voltage	IEC 60270
Dielectric Loss	<0.2%	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

Dual-Function Capabilities

Coupling Capacitor Function

1000pF capacity for power line carrier communication
50Hz optimized signal injection
PD monitoring during operation

Precision Voltage Measurement

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

Integrated Design Advantage

Space-saving dual-function solution
40% reduction in installation footprint
Unified calibration for both functions

Breakthrough Performance Features

Ultra-Low Partial Discharge

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

Robust Insulation System

495kV withstand capability (110% rated)
Zero abnormal discharge during testing
Dual-capacitor series design

Extended Operation

60-minute continuous operation at 450kV
ONAN cooling maintains thermal stability
Ideal for long-duration acceptance tests

Modular Design Advantages

Transport-Optimized Corona System

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

Removable Stability Pedestal

Engineered for seismic stability
Tool-free assembly/disassembly
Integrated measurement ports

Flexible Measurement System

Special lead-wire to VF power sources
Single/two-stage serial measurement
Scalable corona-free connections

Performance Validation

Test Parameter	Requirement	Result
Partial Discharge @ 450kV	≤5pC	≤2pC
495kV Withstand Test	No discharge	Passed (0 discharges)
Continuous Operation	60 minutes	Stable ±0.85% accuracy
Dielectric Loss @ 20°C	<0.2%	0.16% average