Product Introduction
EF digital distributed DC power supply, suitable for small switching stations
and small user substations; Adopting embedded installation, suitable for
distribution within various electrical equipment; It has the advantages of
flexible installation, small space occupation, simple wiring, and easy
maintenance.
Battery charging management function, automatic conversion between equalization and
float charging, scheduled maintenance of equalization;
Intelligent activation function of battery (manual setting required);
Intelligent air cooling, capable of detecting the internal operating temperature of the
product and adjusting the fan speed;
Sound and light alarm, system total fault dry contact output function;
Distributed installation, saving floor space and reducing cost;
Distributed power supply improves reliability;
Wide input range (AC85V-260V), output voltage levels DC48V, 110V, 220V;
Provide RS485 communication interface and offer two communication protocol options:
CDT and MODBUS, which can be connected to substation automation systems.
Technical Parameter
1,Environmental conditions for use
Working group environmental temperature: -10 ºC to+45 ºC;
Maximum monthly average relative humidity: ≤ 90%
Maximum daily average relative humidity: ≤ 95%
Altitude: not exceeding 2000 meters.
Working environment conditions: no conductive particles or dust, no corrosive
metals or chemicals that damage insulation. The usage location
should have facilities to defend against rain, snow, wind, and
sand, and the surrounding area should not be filled with water
vapor or have serious mold presence.`
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2,Input power supply
AC input voltage: 85-260VAC
Frequency: 50Hz ± 10%
Waveform: sine wave, waveform distortion<5%
Power requirement: not less than 300VA per unit.
3,Output power and power consumption
(1) Continuous operating power:
Continuous operation: 200W. (Not connected to battery)
Can meet the power supply needs of microcomputer protection devices, indicator
lights, and analog indicators; When powered by a battery, it can last up to 8-24
hours depending on the battery capacity and load parameters.
Short term operating power: 600W, 60S.
Can meet the energy storage power supply needs of most 10KV system circuit
breakers such as VS1, VD4, ZN21, etc.
Instantaneous operating power: ≤ 1000W, 300ms.
Can meet the power supply needs of most 10KV system circuit breakers and load
switches such as VS1, VD4, ZN21, etc; When powered by battery backup, it can be
operated more than 20 times.
Power consumption: The device itself consumes no more than 8W of power.
4,Charging and discharging of batteries
Two 12V batteries are connected externally to the device. When the AC power
supply of the device is cut off, the DC power supply is ensured to be normal and
continuous. The specific backup time is determined by the battery capacity and
load size. When the battery is discharged to overvoltage or undervoltage, the
device sends an alarm signal and automatically stops the DC output to protect the
battery; When the AC power supply is normal, the device automatically restores
DC power supply and can recharge the battery within 24 hours.
Features: When the battery switch is not turned on, the battery can be charged
as long as there is AC (but the charging current is relatively small), ensuring
that the battery is not damaged when the device is not used for a long time.
This device has a battery reverse connection protection function.
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