DC power source B5-7
Also, this device can be called: B57, B5 7, B-57, B 57.
B5-7 DC power source is designed for powering electronic devices controlled stabilized DC voltage.
Scope: Design, manufacture and tuning of radio equipment.
Specifications power supply B5-7:
Work output voltage range - from 0 V to 30 V.
Rated load current - 3 A.
The main error of the output voltage to the maximum - no more than ± 3%.
- When the voltage on the 10% (at 50 Hz) and 5% (for 400 Hz), - no more than ±0,1%;
- When the load on 100% - less than ±0,2%.
The effective value of the voltage ripple B5-7 - 1 mV.
Temperature coefficient of voltage - no more than 0,025%/°C.
Output voltage drift over 8 hours of continuous operation - no more than ±0,2% of the maximum value.
Protection device against short circuits and overloads triggered when the load current exceeds 10-60% of the nominal value 3 A.
Acceptable modulation factor of the load current in the frequency range from 20 Hz to 200 kHz - not less than 10%.
Maximum emission output voltage - less than 5 V.
The number of emission output voltage - less than 5.
Settling time - no more than 2 seconds.
The output impedance of the source B5-7 - less than 2 ohms.
Output connectors insulated from the device.
Dielectric strength output circuits shall withstand without breakdown:
- 500 V DC;
- Voltage 1200 V AC.
Insulation resistance of circuits relative to the housing of the device - not less than 20 megohms, with high humidity - not less than 1 MW; at elevated temperature - not less than 5 megohms.
Power consumption - 250·A.
Continuous operation of the unit - 8 hours.
Interference voltage level at the terminals of the device in the frequency bands:
- From 0.15 MHz to 0.5 MHz - not more than 60 dB (mkV 1000);
- From 0.5 MHz to 2.5 MHz - no more than 54 dB (500 mkV);
- From 2.5 MHz to 20 MHz - no more than 46 dB (200 mkV).
MTBF - 1700 hrs.
Overall dimensions of the power supply - 130x232x466 mm.
Weight power supply B5-7 - 11 kg.
Operating conditions power supply B5-7:
Ambient temperature - from +5° C to +40° C (278 K to 313 K).
Relative humidity at +30° C (303 K) - 95%.
Pressure - 750±30 mm hg. art. (100±4 kN/m2).
Mains voltage - 220±22, 220±11 V.
Supply frequency - 50±0,5 Hz; from 388 Hz to 428 Hz.
Harmonic content - not more than 5%.
The manufacturer guarantees compliance of the instrument power supply B5-7 requirements of the applicable technical specifications under normal use, transportation and storage.