产品概述：The main function of the isolation transformer is to completely insulate the electricity between the primary side and the secondary side, and to isolate the cir···
I. Overview
BK series control transformers are suitable for circuits with voltages from 50-60Hz to 500V, and are usually used as power sources for local lighting and indication of machine tools to control electrical appliances. This type of transformer can be divided into shell type according to the structure and vertical type according to the installation method.
2. Model and its meaning
3. Use environment
The ambient air temperature is -5°C to +40°C, and the 24-hour average value does not exceed +35°C; the
altitude of the installation site does not exceed 2000M;
the atmospheric relative humidity does not exceed 50% when the ambient air temperature is +40°C, and at lower temperatures It can have a higher relative humidity. The monthly average maximum humidity of the wettest month is 90%, and the average minimum temperature of the month is +25 °C, taking into account
the condensation on the product surface due to temperature changes.
4. Appearance and installation dimensions
model | DBK25~100 series | DBK150~250 series | DBK300~700 series | DBK1000~5000 series | DBK10k series |
capacity | 25~100VA | 150~250VA | 300~700VA | 1000~5000VA | 10kVA |
enter | |||||
Rated voltage | 380V (AC) [various voltages can be customized] | ||||
frequency | 50Hz/60Hz ± 10% | ||||
Phase | Simplex | ||||
output | |||||
frequency | 50Hz/60Hz ± 1% | ||||
Rated output voltage | 220V (AC) [various voltages can be customized] | ||||
Phase | Simplex | ||||
Technical realization | |||||
underlying principle | The principle of isolation transformer is the same as that of ordinary transformer. All use the principle of electromagnetic induction. Isolation transformer generally refers to a 1:1 transformer | ||||
Insulation resistance | 10MΩ | ||||
Power frequency withstand voltage | 2500 V, 1 min, leakage current <10mA | ||||
High frequency interference suppression | Common mode 2500 V (1 MHz ringing wave) rejection >60 dB, differential mode 1250 V (1 MHz ringing wave) rejection >40 dB | ||||
Performance characteristics | Reliable work, low energy consumption, small size, safe wiring, wide applicability | ||||
parameter | |||||
Efficiency (η) | 98% | ||||
external structure | Shell type, vertical type | ||||
cooling method | Free cooling | ||||
Moisture-proof way | open | ||||
Number of windings | double winding | ||||
Core structure | cuboid | ||||
Core shape | Type E | ||||
use | |||||
Operating temperature | -5℃~+40℃ | ||||
working environment | Keep away from water, fire and other oxidative and fire-prone environments | ||||
Working humidity | 0~90%, no more than 50% when the temperature is +40°C, higher relative humidity can be obtained at lower temperature | ||||
operate | 1. Connect the input terminal of the isolation transformer to the corresponding power supply voltage (380V) 2. Connect the output terminal of the isolation transformer to the power input terminal of the required equipment. 3. Turn on the power and it can be used normally. | ||||
physics | |||||
Dimensions: Front (W) X D (D) X H (mm) | See the table below for details: DBK dimension table | ||||
Installation distance | |||||
standard | |||||
international standard | VDE0550, IEC204-1, IEC439 | ||||
domestic standard | JB/T9446-1999, GB5226 | ||||
Be applicable | Can be used interchangeably with foreign products | ||||
Serve | If there is any abnormality during the use of the equipment, please contact the manufacturer in time to deal with it | ||||
DBK size chart | ||||||
model | Dimensions | Installation hole distance | Mounting holes | |||
B max | D max | E max | A | C | K×J | |
BK-25~50 | 78 | 68 | 87 | 52±0.5 | 52±0.5 | 4.8×9 |
BK-100 | 84 | 82 | 94 | 64±0.5 | 64±0.5 | 4.8×9 |
BK-150 | 96 | 98 | 106 | 81±0.5 | 81±0.5 | 5.8×11 |
BK-200 | 96 | 105 | 106 | 88±0.5 | 88±0.5 | 5.8×11 |
BK-250 | 96 | 108 | 106 | 91±0.5 | 91±0.5 | 5.8×11 |
BK-300 | 120 | 117 | 114 | 97±0.5 | 97±0.5 | 7×13 |
BK-400 | 132 | 124 | 124 | 104±0.5 | 104±0.5 | 7×13 |
BK-500 | 132 | 124 | 124 | 104±0.5 | 104±0.5 | 7×13 |
BK-700 | 132 | 134 | 124 | 114±0.5 | 114±0.5 | 7×13 |
BK-1000 | 150 | 153 | 142 | 128±0.5 | 128±0.5 | 8×13 |
BK-1500 | 192 | 147 | 177 | 122±0.5 | 122±0.5 | 8×13 |
BK-2000 | 192 | 167 | 177 | 152±0.5 | 152±0.5 | 8×13 |
BK-3000 | 215 | 220 | 240 | 165±0.5 | 160±0.5 | 8×13 |
BK-5000 | 260 | 220 | 280 | 240±0.5 | 160±0.5 | 8×13 |
BK-10K | 300 | 220 | 290 | 280±0.5 | 170±0.5 | 8×13 |
