600kV ~ 800kV Range

LQHVF 800kV/630pF Capacitive Divider | Wide-Frequency HV Testing Solution

800kV capacitive voltage divider for 30-300Hz applications. Features 2000:1 ratio, ≤1.5% accuracy, <0.5% dielectric loss, and ONAN cooling. Ideal for VF testing.

US$ 15,425.00
Lead time: 45 days

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Product Details

Product Tags

LQHVF 800kV/630pF Capacitive Voltage Divider

Engineered for demanding variable-frequency high-voltage testing, this 800kV capacitive divider delivers precision measurements across 30-300Hz. With triple-unit modular design and ONAN cooling, it's ideal for cable testing, GIS commissioning, and renewable energy grid integration.

Core Technical Specifications

Parameter	Specification	Standard
Rated Voltage	800kV	IEC 60060-1
Frequency Range	30-300Hz	IEC 60076-16
Configuration	3 units in series	-
Total Capacitance	630pF	IEC 60358
Single Unit Specs	400kV / 1260pF	IEC 60358
Dividing Ratio	2000:1	-
Voltage Ratio Error	≤1% (RMS)	IEC 60060-2
Measurement Accuracy	≤±1.5%	IEEE 4
Dielectric Loss	< 0.5%	IEC 60247
Insulation Withstand	880kV (110%) for 60s	IEC 62271
Cooling System	ONAN (Oil Natural Air Natural)	IEC 60502

Advanced Engineering Features

Triple-Unit Modular Design

Three 400kV/1260pF units in series
Transport-optimized disassembly/reassembly
Individual unit testing capability
Redundancy for critical operations

Wide-Frequency Operation

Maintains accuracy across 30-300Hz range for:

Cable resonant testing systems
VF power source compatibility
Harmonic-rich environments

Smart Measurement System

Special lead-wire to variable frequency power sources
Single-stage and two-stage serial voltage measurement
Scalable corona-free HV connections
Automatic temperature compensation

Structural Advantages

Field-Optimized Design

Removable Aluminum Corona Rings: Detachable for compact transport
Stabilized Pedestal: Ensures level operation on uneven terrain
ONAN Cooling: Maintains oil temperature <60°C at full load
Modular Assembly: Fits standard HV test trailers

Performance Validation

Test	Condition	Result
Frequency Response	30-300Hz @ 800kV	Ratio error <1%
Thermal Stability	60 mins @ 100% load	ΔT <35K
Dielectric Withstand	880kV for 60s	No flashover
Transport Simulation	IEC 60068-2-27	Zero calibration shift

Industry Applications

XLPE Cable Testing

Resonant testing at 30-300Hz with ±1.5% accuracy

GIS Commissioning

VF withstand testing up to 800kV

Offshore Wind Integration

Grid connection validation with variable frequency sources

Compliance & Certification

IEC 60060-1/2: High-voltage test techniques
IEEE 4: Standard for HV testing
IEC 60270: Partial discharge measurements
IEC 60502: Power cables accessories

Includes NIST-traceable calibration certificate and 880kV withstand test report.

Field Operation Tip

For resonant tests below 50Hz, allow 10-minute warm-up at 30% voltage to stabilize dielectric properties before full-power measurements.

Ordering Information

Package includes: Three capacitor units, aluminum corona rings, removable pedestal, VF-compatible measuring leads, and calibration documents. Request resonant test configuration guide.