>800kV Range

LQHVF 1000kV/5000pF Dual-Unit Voltage Divider | High-Capacity HV Measurement

1000kV/5000pF capacitive voltage divider with dual-unit serial design. Features ≤3pC partial discharge, ONAN cooling, and 3000:1 ratio for precision high-voltage testing applications.

US$ 21,689.00
Lead time: 45 days

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LQHVF 1000kV/5000pF Dual-Unit Capacitive Voltage Divider & Coupling Capacitor

High-Capacity Solution for Ultra-High Voltage Measurement

The LQHVF 1000kV/5000pF features an innovative dual-unit serial design engineered for precision measurements in extreme voltage environments. With its exceptional ≤3pC partial discharge performance at 800kV and robust ONAN cooling system, this dual-function device delivers laboratory-grade accuracy for critical power transmission testing and certification applications.

Technical Specifications

Parameter	Specification	Testing Standard
System Configuration	2 × 500kV units in series	IEC 61869-11
Rated Voltage	1000kV AC	IEC 60137
Unit Capacitance	10,000pF per unit	IEC 61869-11
System Capacitance	5,000pF	IEC 61869-11
Frequency	50Hz	IEEE C57.13
Partial Discharge (100% V_R)	≤5pC	IEC 60270
Partial Discharge (80% V_R)	≤3pC	IEC 60270
Dividing Ratio	3000:1	IEC 60044-7
Accuracy Class	≤±1%	Class 0.5
Dielectric Loss	<0.2%	ASTM D924
Insulation Withstand	1100kV/1min (110% V_R)	IEC 60060
Cooling System	ONAN (Oil Natural Air Natural)	IEC 60076-2

Dual-Unit Serial Design Advantages

Modular Configuration

Two 500kV/10,000pF units in series:

Each unit independently testable
System capacitance: 5,000pF
Flexible deployment options

Advanced Corona Control

Aluminum alloy corona rings:

Ensure corona-free operation
Optimized for transportation
Scalable HV connections

Measurement Flexibility

Versatile connection options:

Special lead-wire to variable frequency sources
Single-stage and two-stage configurations
HV corona-free connections

Robust Foundation

Removable pedestal:

Provides exceptional stability
Enables rapid assembly/disassembly
Adapts to various test environments

Performance Comparison

Parameter	Standard 1000kV Dividers	LQHVF Dual-Unit System	Improvement
Partial Discharge @ 80% V_R	5-8pC	≤3pC	40-60% reduction
Transportation Weight	800-1000kg	Modular 500kg units	50% easier handling
Deployment Time	6-8 hours	3-4 hours	50% faster
Measurement Flexibility	Single configuration	Dual-configuration options	2x application versatility

Partial Discharge Performance

PD Levels vs. Applied Voltage

Voltage (% of Rated)	Max PD Level	Test Conditions
50% (500kV)	≤2pC	IEC 60270 Method
80% (800kV)	≤3pC	Full system test
100% (1000kV)	≤5pC	Continuous 1-hour operation
110% (1100kV)	No discharge	1-minute withstand test