220V/220V shielded isolation transformer

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Single-phase isolation transformer

Single-phase isolation transformer Single-phase isolation transformer Single-phase isolation transformer

Single-phase isolation transformer

  • Category:220V/220V shielded isolation transformer
  • Single-phase isolation transformer product overviewDG-P series single-phase isolation transformer products are our company's use of high-quality cold-rolled silicon steel sheets, reasonable structure, high reliability, anti-interference, good sa
  • Hotline:021-57715555   13817716438
Product Description

Single-phase isolation transformer product overview

DG-P series single-phase isolation transformer products are our company's use of high-quality cold-rolled silicon steel sheets, reasonable structure, high reliability, anti-interference, good safety performance, high efficiency, low noise, used for UPS bypass, removal of zero-ground voltage, imported equipment High-requirement pure sine wave power supply voltage and other occasions.

The transformer adopts a three-post iron core with I/I or △/Y0 connection. The primary and secondary coils are well insulated, and double shielding is used for isolation. However, although the shielded isolation transformer can effectively prevent the interference (pulse and high-frequency noise) from various NGs, the transformer must be properly grounded).The secondary side circuit is protected from the power grid and external high-frequency electromagnetic wave interference and manual operation is safe. The body is installed in the protective net cover to ensure safe and good heat dissipation.

Single-phase isolation transformer model and its meaning


Advantages of single-phase isolation transformer characteristics

★High isolation ★Good NG performance

★Highly common mode interference suppression

★ Eliminate the voltage between zero and ground

★Easy to change the voltage tap

★Designed according to user's special performance requirements

Main technical parameters of single-phase isolation transformer

Input voltage Single-phase 220V±10%,
three-phase 380V±10% (three-phase three-wire)
efficient >96%
Waveform distortion ≤0.1%
输出电压 单相220V±3%PE(两相三线)
三相380V±3%PE(三相五线)
响应时间 20ms-100ms
频率 50/60Hz 环境温度 -10℃-+45℃
温升 ≤80℃ 音频噪声 ≤60dB 距离1m
抗电强度 2000V/min 绝缘电阻 单相>5MΩ  三相>2MΩ

单相隔离变压器外形及安装尺寸

型号 容量(KVA) 输出电压(V) 联接组别号 外形尺寸(mm)
输入 输出 开户式 防护式
Bmax Dmax Emax Bmax Dmax Dmax
SG-P-0.15 0.15 660
380
220
380
220
200
127
V/V
Y/yno(Y/yo)
Y/d(Y/)
D/Y(△/Y)
Y/d(△/△)
200 105 140 260 180 160
SG-P -0.3 0.3 180 110 180 260 180 160
SG-P -0.5 0.5 180 115 180 260 200 120
SG-P -0.75 0.75 230 130 200 260 250 260
SG-P-1 1 230 140 200 315 200 260
SG-P-1.5 1.5 230 155 200 355 290 280
SG-P-2 2 270 165 250
SG-P -2.5 2.5 270 175 250 370 290 300
SG-P-3 3 270 185 250
SG-P-4 4 300 180 285 510 400 550
SG-P-5 5 300 200 285
SG-P-10 10 370 210 240 560 430 600
SG-P-15 15 420 245 390 600 440 620
SG-P-20 20 540 320 450 650 440 650
SG-P-30 30 540 380 480 870 500 780
SG-P-40 40 750 350 520 960 550 810
SG-P-50 50
SG-P-60 60 800 450 650 1000 810 810
SG-P-80 80
SG-P-100 100 860 450 650 1050 810 810
SG-P-125 125 860 500 700
SG-P-160 160 950 600 800
SG-P-200 200 1000 680 850
SG-P-250 250 1050 700 850

Single-phase isolation transformer operating conditions

1. Applicable altitude: ≤5000m

2. Ambient temperature: -15℃~+45℃

3. Relative humidity: ≤90%

4. There should be no gas, steam, chemical deposits, dirt, conductive dust and other explosive, flammable and corrosive substances that seriously affect the insulation strength of the transformer.

5. Anyone that does not meet the above conditions of use should be determined through consultation with us.