EMI Shielding Hunan Electrical Appliance Science Research Institute
Shielding hall size: 34.55×29.55×32(H)m, 1 set, 11×9.55×6(H)m, 1 set
Completion in December 2020
The integrated shielded hall consists of the following key systems:
Filtering and Suppression System: To further reduce internal electromagnetic interference, the integrated shielded hall features a filtering and suppression system. Power and ergo treatment with filters, suppressors, and other electromagnetic interference suppression devices to eliminate internal electromagnetic noise, ensuring the accuracy and reliability of electronic equipment.
Lighting and Ventilation System: The integrated shielded hall includes lighting and ventilation systems to provide a comfortable and practical working environment. These systems require special design considerations to avoid introducing electromagnetic interference or compromising the shielding effectiveness.
Auxiliary Equipment and Facilities: The integrated shielded hall is typically equipped with auxiliary equipment and facilities such as workbenches, test benches, power supplies, instrumentation, and other supporting devices to facilitate electronic equipment testing, research, and development activities.
The combination and coordination of these systems enable the integrated shielded hall to provide an electromagnetic shielding, controlled, and secure environment, protecting sensitive equipment from external electromagnetic interference and ensuring the accuracy and reliability of testing and research endeavors.
| Main Facilities | Outn> |
| UHV Contamination Test Hall | Dimensions of fog room:30m x 25m x 30m h. |
| Electromagnetic shielding effect:65dB at 1MHz. | |
| Fog generating equipment:6ton/hr. boiler and spray nozzle in total 150 in 4 different directions. | |
| AC 1000kV Contamination Test Facilities | Testing transformer:1000kV, 5000kVA/ 1 min, 4000kVA/ continuous. |
| Voltage drop of the total system:Less than 5% at 3A, 600 - 1000kV. | |
| Power Source:Short circuit generator (3-se, 125MVA). | |
| DC 750kV Contamination Test Facilities | Type:Cascaded three se full-wave rectification with feed-back system. |
| Rated voltage:å¤750kV. | |
| Rated current:1A(30mA at 800kV). | |
| Voltage drop of the total system:Less than 5% at 2.5A, 200 - 750kV. | |
| Power Source:Short circuit generator (3-se, 125MVA). |
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