400kV ~ 600kV Range

LQHVF 600kV/1670pF Modular Coupling Capacitor & Voltage Divider | Wide Frequency Range

LQHVF 600kV/1670pF dual-function coupling capacitor & voltage divider with 7000:1 ratio and 20-300Hz frequency range. Modular 300kV units for flexible deployment.

US$ 12,684.00
Lead time: 30days

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LQHVF 600kV/1670pF Modular System: Wide-Frequency Coupling Capacitor & Voltage Divider

Advanced Dual-Function Solution for Variable Frequency Applications

The LQHVF 600kV/1670pF system revolutionizes high-voltage testing with its modular 300kV units and exceptional 20-300Hz frequency range. Combining coupling capacitor functionality with a precision 7000:1 voltage divider, this innovative design delivers unparalleled flexibility for resonant testing, power line carrier systems, and high-voltage research applications.

Key Innovation: Modular 300kV units can be deployed independently for medium-voltage applications or combined for 600kV operation, reducing equipment costs by up to 40% compared to conventional systems.

Technical Specifications

Parameter	Specification	Compliance Standard
System Configuration	2 × 300kV modules (3340pF each)	IEC 60060-1
Combined Rating	600kV @ 1670pF	IEC 60137
Frequency Range	20Hz - 300Hz	IEEE 4
Dividing Ratio	7000:1	IEC 61869-11
Voltage Ratio Error	≤1% (effective value)	IEC 60060-2
Dielectric Loss	<0.5% @ 20°C	IEC 60247
Insulation Withstand	660kV (110%) for 60 seconds	IEC 60071-2
Measuring Accuracy	≤1.5%	IEC 61869-11
Cooling System	ONAN (Oil-Natural Air-Natural)	IEC 60076-2

Modular Configuration System

Standalone Mode: Single 300kV module (3340pF) for medium-voltage applications

Series Mode: Two modules combined for 600kV operation (1670pF)

➔ Configuration switching time: <15 minutes

Advanced Engineering Features

Ultra-Wide Frequency Operation

Maintains ≤1.5% accuracy across 20-300Hz range - ideal for cable resonant testing and rotating machine diagnostics.

High-Precision 7000:1 Ratio

Exceptional dividing ratio enables precise measurements in ultra-high voltage environments with minimal signal loss.

Aluminum Corona Rings

Lightweight alloy rings ensure corona-free operation up to 660kV while optimizing transportation efficiency.

Removable Stabilizing Pedestal

Quick-disconnect base with vibration damping ensures stability during field measurements.

Multi-Configuration Measurement

Special lead-wire system supports:

Single-module (300kV) and dual-module (600kV) operation
Direct connection to variable frequency power sources
Scalable corona-free HV connections

Enhanced ONAN Cooling

Optimized thermal management maintains stable operation during extended testing sessions.

Dual-Functional Operation

Coupling Capacitor Mode

High-efficiency energy transfer for power line carrier (PLC) systems with 1670pF coupling capacitance and <0.5% dielectric loss.

Precision Voltage Divider

7000:1 ratio with ≤1.5% accuracy for critical measurements in high-voltage test applications.

Industry Applications

Cable Resonant Testing HVDC Converter Stations Rotating Machine Diagnostics GIS Partial Discharge Research Laboratories

Variable Frequency Testing

XLPE cable withstand testing at 20-300Hz frequencies with precision voltage monitoring.

Power Transformer Analysis

Excitation current measurement during frequency response analysis (FRA).

High-Power Laboratories

Reference standard for calibrating HV measurement equipment across wide frequency range.

Performance Validation

Frequency Response: Certified accuracy across 20-300Hz range per IEC 61869-11
Dielectric Strength: 660kV withstand for 60 seconds with zero discharge events
Thermal Stability: ≤18°C oil temperature rise during 60-minute continuous operation
Ratio Accuracy: Verified at multiple frequencies with NIST-traceable sources