200kV ~ 400kV Range

LQHVF 220KV/1000pF Capacitor Voltage Divider: Precision High-Voltage Measurement Solution

Professional-grade LQHVF 220KV/1000pF capacitive voltage divider for accurate high-voltage measurement. Features ±1.5% accuracy, 1500:1 ratio, oil-paper insulation, and corona-free design. Ideal for switchgear testing and power systems.

US$ 5,371.00
Lead time: 30 days

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LQHVF 220KV/1000pF Capacitor Voltage Divider: Precision Measurement for High-Voltage Systems

Engineered for Critical HV Applications

The LQHVF series capacitor voltage divider delivers laboratory-grade accuracy in field conditions. Designed for 220KV systems with 1000pF capacitance, this single-phase solution enables reliable measurement of:

Partial discharge detection in transformers
Dielectric loss tangent measurements
Frequency response analysis (20-300Hz range)
Switchgear commissioning tests

Core Performance Advantage

Meets IEC 60060-2 standards with 1.2x rated voltage withstand for 1 minute and ≤0.5% dielectric loss – ensuring compliance in utility and industrial applications.

Technical Specifications

Parameter	Specification	Industry Significance
Rated Voltage	220KV	Transmission-level measurement capability
Accuracy	≤ ±1.5% error	Exceeds IEEE 4 precision requirements
Partial Pressure Ratio	1500:1 (certified)	Enables low-voltage instrumentation interface
Cooling System	ONAN (Oil Natural Air Natural)	Maintains thermal stability during 1-hour operations
Insulation Structure	Epoxy tube shell with oil-paper capacitor	Superior dielectric strength & moisture resistance

Innovative Design Features

Corona-Free HV Connection

Aluminum alloy corona rings eliminate discharge phenomena at 220KV+, scalable for multi-stage configurations.

Modular Transport Design

Removable pedestal with compact corona rings facilitates secure shipping and onsite assembly.

Dual-Measurement Capability

Special lead-wire interface measures both single-stage and two-stage serial connection voltages via VF power sources.

Application Scenarios

Power Transformer Testing

Performs dielectric response analysis during maintenance shutdowns with 300Hz frequency resolution.

Substation Commissioning

Verifies switchgear insulation integrity at 264KV (1.2x rated voltage) per IEC 62271-200.

Research & Development

Provides NIST-traceable measurement for HV component prototyping with certified 1500:1 ratio.

Safety Integration

Stability-Optimized Base: Prevents tip-over during live measurements
Dual Grounding Points: Ensures equipotential bonding
Epoxy Encapsulation: Contains dielectric fluid in rupture scenarios
Visual Discharge Indicators: Aluminum rings show corona inception

"The 1500:1 certified ratio eliminates guesswork in HV instrument calibration – a game-changer for compliance testing."
- Power Systems Engineer, European TSO