1756-DNB/B

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DC regulated power supply system
In order to adapt to the development requirements of the power grid, improve the safety and reliability of equipment operation, and strengthen the equipment technology of DC power supply system Management, this technical standard is specially formulated.
This standard is formulated based on the relevant national and industry standards, procedures and specifications and combined with the State Grid Corporation of China's power transmission and transformation equipment evaluation analysis, production operation analysis and equipment operation experience.
This standard puts forward specific requirements for the technical conditions, ordering, manufacturing supervision, factory acceptance, packaging, storage and transportation, on-site installation, on-site acceptance, and test methods of DC power system equipment.
This standard applies to the technical management of DC power supply devices in power plants, substations and other power projects of the State Grid Corporation of China system.
Conditions of use
The altitude of the environmental conditions for normal use does not exceed.
During the operation of the equipment, the ambient air temperature shall not be higher than ℃ and not lower than -℃. The daily average relative humidity is not greater than 1, and the monthly average relative humidity is not greater than 1.
The installation and use location must be free of strong vibration and impact, and free of strong electromagnetic interference. The induction intensity of the external magnetic field shall not exceed.
The vertical inclination of the installation should not exceed.
There must be no explosive hazardous media in the place of use, and the surrounding media does not contain harmful gases and conductive media that corrode metal and destroy insulation.
Electrical conditions for normal use
The frequency variation range does not exceed.
The AC input voltage fluctuation range does not exceed -~+.
The AC input voltage asymmetry does not exceed.
The AC input voltage should be a sine wave, and the non-sinusoidal content should not exceed the rated value. Model and basic parameters Model
The model is specified by / -. Basic parameters Rated input voltage single phase:. Three phases:. Rated input frequency.
DC rated voltage,,3.
DC nominal voltage,,. The charging device outputs DC rated current,,,,,,,,,,,. The rated capacity of the battery (~3). Equipment load level The load level is level one, that is, the rated current is continuously output.
Stable current accuracy
Magnetic amplification large-scale charging device: Phase-controlled charging device: High-frequency switching power supply charging device: .
Voltage stabilization accuracy
Magnetic amplification large-scale charging device: phase-controlled charging device high-frequency switching power supply charging device:.
Ripple coefficient
Magnetic amplification large-scale charging device: phase-controlled charging device high-frequency switching power supply charging device:.
General technical requirements
System composition
The system includes AC input, microcomputer monitoring, charging, feed, battery pack, insulation monitoring (grounding line selection optional), discharge (optional), busbar It is composed of voltage regulating device (optional), voltage monitoring (optional), battery inspection (optional) and other units.
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B has one in stock (brand new, with original US packaging)
One has in stock (old, can be used normally after powering on)
Workstation has one in stock (brand new, with US original packaging) Original packaging)
Blocks in stock (brand new, with original U.S. packaging)
Blocks in stock (new, with original U.S. packaging)
Blocks in stock (brand new, with original U.S. packaging)
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