ZTY series high precision auto voltage regulator power supply mainly consists of contact auto-transformer,
servo motor and automatic control circuit. When grid voltage is unstable or load varies, automatic control
circuit drives the servo motor in compliance with variety of output voltage, adjusts carbon brush position
on the contact auto-transformer, makes output voltage adjusted to be rated value and reaches a steady state.
ZTY series products introduce advanced technology, adopt energy-saving ring transformer and use integrated
circuit and high quality components, which make them featured with small footprint, light weight,
high-efficiency and energy-saving, no additional distortion of output waveform, stable performance and
reliability.
Features
- High adaptability to all kinds of non-linear load such as inductive load and capacitive load
- High power density, high cost-effective, wide application
- Ring transformer structure, small footprint, minimum magnetic leakage, low noise
- Multilayer structure carbon brush with long service time and convenient daily maintenance
Specifications
| MODEL |
ZTY Single Phase |
| Capacity |
1 KVA |
2 KVA |
3 KVA |
5 KVA |
10 KVA |
15 KVA |
20 KVA |
30 KVA |
| AC INPUT |
| Voltage range |
160 V ~ 255 V |
| Frequency range |
50 / 60 Hz |
| Phase |
Single phase + N + G |
| AC OUTPUT |
| Voltage |
220 V / 230V （ 110 V output is available for 5KVA below） |
| Voltage regulation accuracy |
≤ ± 3% |
| Waveform |
Sinusoidal |
| Efficiency |
≥ 96% |
| Power factor |
0.8 |
| Distortion |
No additional waveform distortion |
| Response time |
± 10% varies < 1 s |
| Overvoltage protection |
Output phase voltage 250 V ± 5 V |
| Undervoltage |
Output phase voltage 183 V ± 5 V |
| Other protections |
Start-up delay – mechanical failure – overcurrent – short-circuit –
overtemperature
|
| Insulation resistance |
≥ 2MΩ |
| Dielectric intensity |
Input and output to earth at 50 Hz, 2000 V AC voltage for 1min, there
is no breakdown or flashover, leakage current is less than 10 mA or at 2800 V DC voltage for 1min,
no breakdown or flashover, leakage current is less than 1 mA
|
| OTHERS |
| Ambient temperature |
0℃ ~ + 40℃ |
| Altitude |
Less than 1000 m |
| Relative humidity |
0% ~ 95% (non-condensing) |
| Dimensions (W*D*H) (mm) |
176*190*146 |
265*240*205 |
325*240*275 |
412*244*372 |
400*345*665 |
400*345*770 |
440*385*810 |
| Weight (kg) |
5.0 |
8.5 |
12.5 |
15 |
24 |
43 |
55 |
91 |
| MODEL |
ZTY Three Phase |
| Capacity |
10 KVA |
15 KVA |
20 KVA |
30 KVA |
| AC INPUT |
| Voltage range |
277 V ~ 433 V |
| Frequency range |
50 / 60 Hz |
| Phase |
Three phase + N + G |
| AC OUTPUT |
| Voltage |
380 V / 400V |
| Voltage regulation accuracy |
≤ ± 3% |
| Waveform |
Sinusoidal |
| Efficiency |
≥ 96% |
| Power factor |
0.8 |
| Distortion |
No additional waveform distortion |
| Response time |
± 10% varies < 1 s |
| Overvoltage protection |
Output phase voltage 433 V ± 5 V |
| Undervoltage |
Output phase voltage 316 V ± 5 V |
| Other protections |
Start-up delay – mechanical failure – overcurrent – short-circuit – phase order (three phase) – lack-phase (three phase) – overtemperature |
| Insulation resistance |
≥ 2MΩ |
| Dielectric intensity |
Input and output to earth at 50 Hz, 2000 V AC voltage for 1min, there is no breakdown or flashover, leakage current is less than 10 mA or at 2800 V DC voltage for 1min, no breakdown or flashover, leakage current is less than 1 mA |
| OTHERS |
| Ambient temperature |
0℃ ~ + 40℃ |
| Altitude |
Less than 1000 m |
| Relative humidity |
0% ~ 95% (non-condensing) |
| Dimensions (W*D*H) (mm) |
350*320*775 |
400*345*815 |
435*465*900 |
| Weight (kg) |
35 |
45 |
59 |
78 |
