100kv ~ 200kV Range

LQHVF150kV/500pF Dual-Purpose Voltage Divider & Coupling Capacitor | ONAN-Cooled HV Solution

150kV capacitor voltage divider, 500pF coupling capacitor, HV voltage divider, ONAN cooling capacitor, oil-immersed voltage divider, partial discharge measurement, removable HV equipment, high voltage measurement

US$ 3,884.00
Lead time: 30 day

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LQHVF150kV/500pF: Dual-Function Capacitor for Voltage Division & Power Line Coupling

Precision HV Measurement and Signal Coupling in One Solution

The LQHVF150kV/500pF capacitor uniquely combines voltage division and coupling capabilities for high-voltage systems. With oil-immersed ONAN cooling and <5pC partial discharge at rated voltage, this IEEE-compliant device delivers ±1% measurement accuracy while enabling secure power line communication coupling.

Dual-Function Design Advantage

This innovative device serves two critical functions in high-voltage systems:

Precision Voltage Divider

1000:1 ratio with ±1% accuracy for reliable high-voltage measurement in testing and monitoring applications

Coupling Capacitor

500pF capacitance enables power line carrier communication (PLC) and protective relaying signal transmission

Technical Specifications

Parameter	Specification
Rated Voltage	150kV
Nominal Capacity	500pF
Nominal Ratio	1000:1
Dielectric Loss (tanδ)	<0.5%
Partial Discharge (PD)	<5pC at rated voltage
Measuring Accuracy	≤ ±1%
Operating Frequency	50Hz
Continuous Operation	60 minutes at 100% rated voltage
Cooling System	ONAN (Oil Natural Air Natural)

Modular Oil-Immersed Structure

[Diagram Placeholder: Oil-immersed capacitor structure]

Fig 1: Removable design with HV arm, LV arm, corona rings, and base

Key Structural Features

Oil-Immersed Construction: Mineral oil insulation enhances thermal stability and dielectric strength
Modular Design: Composed of four removable components:

Aluminum alloy corona rings
HV capacitor arm
LV measurement arm
Removable stability base

Sealed Encapsulation: Prevents oil leakage and contamination in harsh environments

Performance Advantages

Ultra-Low Partial Discharge

<5pC at 150kV ensures measurement integrity and compliance with IEC 60270 standards

Thermal Management

ONAN cooling maintains stable capacitance during 60-minute full-load operation

Field-Serviceable Design

Modular components enable quick maintenance without complete disassembly

Measurement Versatility

Simultaneous voltage measurement and power line carrier communication

Industry Applications

Substation voltage monitoring systems
Power line carrier (PLC) communication coupling
Protective relaying and fault detection
High-voltage transformer testing
Switchgear diagnostic systems
Energy metering in transmission networks
Renewable energy grid interconnection
Research lab HV measurement

Compliance & Standards

Engineered to meet global electrical standards for dual-use applications:

IEC 60358-1: Coupling capacitors and capacitor dividers
IEC 60270: Partial discharge measurements
IEEE C57.13: Requirements for instrument transformers
ANSI/NETA ATS: Acceptance testing specifications
EN 50160: Power quality measurement

Why Choose This Dual-Function Capacitor?

The LQHVF150kV/500pF eliminates the need for separate measurement and coupling devices, reducing substation footprint by up to 40%. Its oil-immersed design ensures stable performance in temperature ranges from -25°C to +55°C, while the modular construction simplifies maintenance and extends service life. With certified <5pC partial discharge levels, this solution meets the most stringent grid compliance requirements.