600kV ~ 800kV Range

LQHVF 750kV/3000pF Coupling Capacitor & Capacitive Voltage Divider Technical Specifications

High-precision 750kV capacitive voltage divider for HV measurement. Features 2000:1 ratio, <0.2% dielectric loss, 810kV insulation, and partial discharge compliance.

US$ 15,325.00
Lead time: 45 days

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Product Details

Product Tags

LQHVF 750kV/3000pF Coupling Capacitor & Capacitive Voltage Divider

Engineered for precision high-voltage measurement in substations and power transmission systems, the LQHVF series combines robust construction with laboratory-grade accuracy. Compliant with IEC and IEEE standards for critical infrastructure applications.

Core Technical Specifications

Parameter	Specification
Rated Voltage	750kV
Frequency	50Hz
Rated Capacity	3000pF (3 units in series) Single Unit: 250kV / 9000pF
Nominal Dividing Ratio	2000:1
Dielectric Loss	< 0.2%
Measuring Accuracy	±1%
Partial Discharge Level	Evaluated with reactors (IEC 60270 compliant)
Insulation Withstand	110% rated voltage (810kV) for 1 minute

Key Design Features

Advanced Cooling System

ONAN (Oil Natural Air Natural) cooling ensures thermal stability during extended high-voltage operations.

Corona-Free Construction

Aluminum alloy corona rings
Scalable HV connections
Special measuring lead-wire to variable frequency power source

Modular Configuration

Supports both single-stage and two-stage serial connection voltage measurements. Removable pedestal provides stability while enabling efficient transport.

Physical Specifications

Dimensions: Ø1800 × 7600mm (base diameter: 300mm)
Weight: < 580kg
Transport: Optimized packing with removable components

Industry Applications

Power Substation Monitoring

Accurate voltage measurement in 500kV+ transmission networks with ±1% precision.

Dielectric Strength Testing

Validates insulation integrity under 810kV stress (per IEC 60060 standards).

Partial Discharge Analysis

Reactor-compatible design for critical discharge evaluation in transformers and switchgear.

Compliance & Safety

Meets international standards for:

IEC 60137 (Bushings)
IEEE C57.19.00 (General Requirements)
IEC 60270 (Partial Discharge Measurements)

Why Choose This Capacitive Divider?

Ultra-Low Loss: <0.2% dielectric loss ensures measurement integrity
Rugged Design: ONAN cooling + aluminum corona rings for field durability
Test Flexibility: Configurable for single/dual-stage measurements

Pro Tip: For reactor-based partial discharge tests, maintain ambient temperature below 40°C to maximize measurement accuracy.

Ordering Information

Includes: 3 capacitor units, removable pedestal, HV corona-free connectors, and measurement lead-wire kit. Request datasheet for factory test reports including 810kV withstand certification.