>800kV Range

LQHVF 1200kV/1200pF 3-Stage Voltage Divider | Ultra-High Voltage Measurement

1200kV capacitive voltage divider with innovative 3-stage design (400kV per stage). Features ≤1% accuracy, ONAN cooling, and 2000:1 ratio for precision HV testing applications.

US$ 17,817.00
Lead time: 45 days

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LQHVF 1200kV/1200pF 3-Stage Capacitive Voltage Divider & Coupling Capacitor

Breakthrough in Ultra-High Voltage Measurement Technology

The LQHVF 1200kV/1200pF redefines high-voltage testing with its innovative three-stage modular design. Engineered to deliver precision measurements at unprecedented voltage levels, this system combines 400kV-rated modules in series to achieve 1200kV operational capacity with laboratory-grade accuracy and exceptional safety margins.

Technical Specifications

Parameter	Specification	Testing Standard
System Configuration	3 × 400kV stages in series	IEC 61869-11
Rated Voltage	1200kV AC	IEC 60137
Stage Voltage	400kV per module	IEC 60071
System Capacitance	1200pF	IEC 61869-11
Frequency	50Hz	IEEE C57.13
Dividing Ratio	2000:1	IEC 60044-7
Accuracy Class	≤±1%	Class 0.5
Dielectric Loss	<0.2%	ASTM D924
Insulation Withstand	1320kV/1min (110% V_R)	IEC 60060
Cooling System	ONAN (Oil Natural Air Natural)	IEC 60076-2

Three-Stage Modular Design Advantages

Scalable Architecture

Three identical 400kV modules:

Series configuration for 1200kV operation
Each stage independently functional
System capacitance: 1200pF

Advanced Corona Management

Aluminum alloy corona rings:

Ensure discharge-free operation at full voltage
Optimized for transportation efficiency
Scalable HV connections

Measurement Versatility

Multiple configuration options:

Special lead-wire to variable frequency sources
Single-stage (400kV) to full-system (1200kV)
HV corona-free connections

Stable Foundation System

Removable pedestal provides:

Exceptional stability at extreme heights
Rapid assembly/disassembly capability
Wind-resistant design for field testing

Performance Characteristics

Voltage Distribution

Stage	Rated Voltage	Withstand Voltage
Stage 1	400kV	440kV
Stage 2	400kV	440kV
Stage 3	400kV	440kV
System	1200kV	1320kV

Accuracy Metrics

Ratio error: ≤±1% (full scale)
Phase displacement: <5 minutes
Temperature coefficient: 3×10^-5/°C
Frequency response: 20-300Hz ±1.5%

Safety Margins

110% rated voltage withstand for 1 minute
No abnormal discharge at 1320kV
Double safety margin on mechanical design
Automatic pressure relief system

Transportation & Installation Advantages

Feature	Standard 1200kV Dividers	LQHVF 3-Stage System	Benefit
Maximum Component Weight	800-1000kg	400kg per stage	60% lighter modules
Transportation Height	10-12 meters	4.5 meters	Standard container compatible
Assembly Time	8-10 hours	3-4 hours	65% faster deployment
Configuration Flexibility	Single voltage only	400kV, 800kV, 1200kV	3-in-1 system versatility