HVDC Generator
HDCG I-800kV/20mA HVDC Generator
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HDCG I-800kV/20mA HVDC Generator

Lead time: 90 days

Mode: HDCG I-800kV/20mA

Applied Standard: 
 IEC 61643-1 2011 Surge Protective Devices Connected to Low-voltage Power Distribution Systems-Part 1: Performance and Testing Methods
 IEC 61083-1 Instruments and Software Used for Measurement in High-voltage Impulse Tests-Part 1: Requirements for Instruments
 IEC 61083-2 Instruments and Software Used for Measurement in High-voltage and High-current Tests-Part 2: Requirements for Software for Tests with Impulse Voltages and Currents
 IEC 62475 High Current Test Techniques-Definitions and Requirements for Test Current and Measuring Systems

Technical Parameters:
Rated Voltage: 800kV
Rated Current : 20mA
Ripple Factor: <3%(20mA resistive current)
Voltage stability : Test object relative voltage drop <1% under resistive current
Stages:2stages voltage-multiplying drop
Commutation capacitor : 200kV/0.1uF 2set ;400kV/0.05uF 1set
Filter capacitor : 400kV/0.05uF 2set High-voltage
silicon rectifier stack voltage: 800kV Rated current: 20mA
Working time: one hour on, one hour off, 4 cycle per day.

Main circuit structure, this system is designed as unilateral unsymmetrical single stage voltage-multiplying circuit, besides test transformer, voltage regulator, the filter capacitor, multivoltage capacitor, silicon rectify stack is placed separately on three basement. The resistance voltage divider and earthing switch has the same basement which equip universal wheel and lifting jack. We can customize movable and stable type. Manual change polarity. The top electrode(corona ring) is special designed for DC generator. See outside drawing. There are safety earthing system on the generator, which protects the safety of staff and equipment.

Principle Diagram: 

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