ZPSFG Series Dry-type Transformer for Frequency Variation Speed Control
The insulation class of the ZPSFG Series Dry Type Transformer for Frequency Variation Speed Control is Grade H. It adopts the high-tech DuPont NOMEX paper as the insulation material; the structure and electrical design are conducted with the advanced technology and process. The iron core material of the series product is the high-quality cold rolled oriented silicon steel sheet; the grid side and valve side coil is wound with the high-quality oxygen-free copper conductor, and VPI vacuum pressure lacquer curing process is adopted for treatment. The product performance indicators shall completely conform to requirements in JB/T 8636-1997 Industrial Standards and IEC61378 International Standards.
Model Description:
Technical Parameters:
Product Model Grid Side Winding Valve Side Winding Short-circuit Impedance % Voltage (kV) Tapping Range Wiring Method Phase Shift Coil Unit and Group Number ZPSFG-250/6 6 ±5% Y or D Unit number (4 or 7) group number 3 6～8 ZPSFG-300/6 ZPSFG-400/6 ZPSFG-500/6 ZPSFG-680/6 ZPSFG-750/6 ZPSFG-850/6 ZPSFG-1000/6 ZPSFG-1250/6 ZPSFG-1500/6 ZPSFG-1750/6 ZPSFG-2250/6 ZPSFG-2500/6 Product Model
Exterior Dimensions
Weight
(L × W × H)
(kg)
ZPSFG-250/6
1400×880×1250
1100
ZPSFG-300/6
1450×880×1300
1330
ZPSFG-400/6
1480×880×1300
1580
ZPSFG-500/6
1480×880×1500
1850
ZPSFG-680/6
1500×880×1630
2220
ZPSFG-750/6
1500×880×1650
2400
ZPSFG-850/6
1520×960×1650
2700
ZPSFG-1000/6
1520×1000×1650
3000
ZPSFG-1250/6
1550×1000×1680
3500
ZPSFG-1500/6
1580×1040×1850
3900
ZPSFG-1750/6
1650×1040×1900
4150
ZPSFG-2250/6
1850×1040×1900
5000
ZPSFG-2500/6
1860×1040×1950
5300
1. The high-quality cold-rolled silicon steel sheet is adopted for the iron core. It uses a 450 fully-beveled seam, 3-step overlapping, which can effectively reduce the no-load loss, no-load current, and noise.
2. The grid and valve sides winding shall be Level H insulation, thermal endurance class 1800C/356°F, the coil is wound with oxygen-free copper wire wrapped with nomex paper. A special process and structure are adopted, and it is immersed in paint with VPI vacuum pressure for high-temperature curing, which not only improves mechanical strength of the product, but also enables it to have a overload capability to withstand shock cooling and heating.
3. The cooling mode is air cooling, and the thermostat is equipped to achieve fan start-stop, overtemperature alarm trip and other functions.
4. The valve side winding with multi-phase phase shift is rectified and has a large number of pulse waves in one cycle, which can effectively reduce pollution of harmonic wave on power grid.
1. The elevation shall not exceed 1,000m
2. Ambient Temperature Maximum temperature +40℃/104°F
Maximum daily average temperature +30℃/86°F
Maximum annual average temperature +20℃/68°F
Minimum temperature -5℃/23°F (applicable for the indoor transformer)
3. The transformer shall be not be soaked in water, rain and snow during use
4. The supply voltage waveform shall be similar to sine wave, and the supply voltage connected with the multi-phase transformer shall be approximately symmetrical
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