400kV ~ 600kV Range

LQHVF 500kV/3000pF Dual-Unit Divider & Coupling Capacitor | ≤2pC PD & ±1% Accuracy

Industrial dual-unit solution with 500kV capacity, ≤2pC partial discharge, ±1% accuracy & 550kV withstand. ONAN cooling, configurable 250kV/6000pF or 500kV/3000pF.

US$ 11,878.00
Lead time: 30days

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Product Details

Product Tags

LQHVF 500kV/3000pF Dual-Unit Coupling Capacitor & Voltage Divider

Industrial-grade dual-unit solution offering flexible configuration with industry-leading ≤2pC partial discharge performance at 500kV operation.

Dual-Unit Flexibility: Configure as two independent 250kV/6000pF units or single 500kV/3000pF system - ideal for versatile industrial applications

Technical Specifications

Parameter	Single Unit	Dual-Unit Serial	Test Standard
Rated Voltage	250kV	500kV	IEC 60060-1
Rated Capacity	6000pF	3000pF	IEEE 4
Operation Frequency	50Hz		IEC 60076
Partial Discharge	≤2pC		IEC 60270
Dielectric Loss	<0.2%		IEC 60422
Measuring Accuracy	≤±1%		IEEE 112
Dividing Ratio	2000:1		N/A
Continuous Operation	60 minutes @ 100% rating		IEEE C57.91
Insulation Withstand	550kV (110% rated) for 1min		IEC 60071
Cooling System	ONAN (Oil Natural Air Natural)		IEEE C57.12.00
Dimensions	Ø300mm × 7000mm (H) Base: 1800mm		N/A
Weight	<480kg		N/A

Configurable Operation Modes

Independent Unit Operation

250kV per unit
6000pF capacity each
Parallel deployment capability

Serial High-Voltage Operation

500kV system voltage
3000pF total capacity
Full measurement accuracy

Rapid Reconfiguration

Field-switchable in 20 minutes
No specialized tools required
Maintains calibration in both modes

Advanced Performance Features

Ultra-Low Partial Discharge

≤2pC at 500kV operation
Industry-leading sensitivity
Detects microscopic insulation defects

Precision Measurement

±1% voltage accuracy
2000:1 nominal dividing ratio
Stable 50Hz operation

Robust Insulation

550kV withstand capability
Dual-unit insulation coordination
Zero abnormal discharge during testing

Dual-Function Capabilities

Coupling Capacitor Function

3000pF capacity (serial configuration)
Power line carrier communication
50Hz optimized signal injection

Precision Voltage Measurement

2000:1 dividing ratio
Single and two-stage measurement
Special lead-wire to VF sources

Simultaneous operation supported in all configurations

Industrial Design Advantages

Compact Footprint Design

Ø300mm × 7000mm optimized profile
Base footprint: 1800mm
Weight: <480kg for easier handling

Transport-Optimized System

Aerospace aluminum corona rings
Segmented design for packing
Removable pedestal system

Advanced ONAN Cooling

Natural oil-air convection
Maintains <0.2% dielectric loss
60-minute continuous operation

Performance Validation

Test Parameter	Requirement	Result
Partial Discharge @ 500kV	≤5pC	≤2pC
550kV Withstand	No discharge	Passed
Accuracy @ 500kV	≤±1%	±0.85%
Dielectric Loss	<0.2%	0.16%

Testing conducted per IEC 60270 and IEEE 4 standards

Industrial Applications

Power Substation Monitoring

Dual-function operation for integrated grid systems

High-Capacity Testing Labs

Configurable setups for diverse equipment testing

Cable Manufacturing

High-sensitivity PD detection at 500kV

Mobile Test Teams

Transport-optimized design for field operations

Compliance & Certifications

IEC 60060-1: High-voltage test techniques
IEEE 4: Standard for HV testing
IEC 60270: Partial discharge measurements
IEC 61869-11: Coupling capacitors
ANSI/NETA ATS-2021: Acceptance testing
CE, RoHS, and UKCA certified

Safety Compliance: Meets IEEE 516-2022 safety requirements for 500kV installations