Prefabricated (American) Compact Transformer Substation(Double Transformer)

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Product Description:

Product structure:
1.It's with small volume and compact conformation. It covers just about 1/3 to 1/5 of the usual European-style substations, which have same capacity with it.
2.It's full-sealed and all-insulated. And it uses the S11-type transformer, which has low-wastage, low-voice and strong ability of overloading. adorpts devides box type.this type protects the transformer from polluting by the oil which is in box.

4.high voltage side adopts double fuses all range protective makes cost less . can be used as ring net ,and also as end,cable lug can be insected and extracted when it is 200A loading current. body is honeycomb double sandwich composite panels type,has  thermal insulating and heat release performance.this technical is our patent.

Normal using conditions:
Altitude ≤ 1000m

Environment temperature: the highest:40°C; the lowest: -35°C

Quakeproof:horizontal acceleration not larger than 3 4m/s2

Inclination of installationsite: no more than 3°

Installation condition: there should not have danger of fire or explosion, serious nasty, chemical etch and strenuous vibration.
Wind ≤ 35m s ( not larger than 700pa )
Relative humidity: the annual average value is no lager than 95%. monthly value is no larger than 95%
Vertical acceleration:0.15m/s2

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Q:What is the difference between the SGB10 transformer and the SC (B) 10 transformer?
1.SGB and SCB transformers are dry-type transformers, the former is non-encapsulated transformer, which is the package transformer, because the SGB is a non-encapsulated transformer, the coil is damaged, can be part of the maintenance; SCB is epoxy encapsulated transformer coil , If the coil burned only after the coil, not part of the maintenance 2. The former heat-resistant grade for the H-class, the latter for the F-class. 3. From the cost point of view, SGB10 than SCB10 expensive 4. From the service life, the basic almost.
Q:What is the meaning of the transformer without excitation?
General power transformers are equipped with tap-changer, can be carried out in a small range of voltage regulation to meet the grid voltage fluctuations, as far as possible to the transformer output side of the voltage stability. There are two ways: 1, on-load regulation: it can be in the transformer with load, automatic or manual tap position switch. Because the switch is completed in an instant, so it will not affect the normal operation, that is, once, the second side are not power failure can be carried out under the circumstances. 2, no excitation voltage regulator (sometimes mistakenly said no load voltage regulator): is to be in the primary side and the secondary side are power outages, put the isolation switch to open the case, to ensure that the transformer in the absence of electricity, adjust the tap position , The regulator. 3, in the past, it is possible from the English No Load (no load) or On Load (contained) translated over, said to be no load regulator. This is not accurate, it is easy to be misinterpreted as: the transformer can be in the absence of load (current) when the regulator, without the need to control whether the power side. This is very dangerous, no excitation voltage regulator, it is very accurate, to the transformer side, the secondary side are power, in the absence of any excitation circumstances, to operate. 4, therefore, our professionals must change No - Load to Off - Eirecuit - Tap - Changing.
Q:380V transformer always burn, how is it going
This voltage is normal, mainly due to the secondary load is too large, measured under the secondary current. For large capacity transformer can be. No load is not, it can only show that the quality of the transformer there are serious problems, another regular manufacturers with
Q:What are the specifications of the transformer capacity?
The choice of transformer capacity has a great impact on the comprehensive investment efficiency. Transformer capacity selected too large, there "big horse car" phenomenon, not only a one-time investment, no-load loss is also large. Transformer capacity selected too small, transformer load loss increases, economically unreasonable, technically not feasible.
Q:Transformer core
The core part of the transformer is the transformer is the exchange of AC voltage, current and impedance of the device, when the primary coil with AC current, the core (or core) will produce AC flux, the secondary coil induced voltage ( Or current). Sort by cooling: dry (self-cooling) transformers, oil immersion (self-cooling) transformers, fluoride (evaporative cooling) transformers. According to moisture-proof classification: open-type transformers, potting transformers, sealed transformers. According to the core or coil structure classification: core transformer (insert core, C core, ferrite core), shell transformer (insert core, C core, ferrite core), Ring transformers, metal foil transformers. According to the number of power supply categories: single-phase transformers, three-phase transformers, multi-phase transformers. By use classification: power transformers, voltage transformers, audio transformers, IF transformers, high-frequency transformers, pulse transformers.
Q:Transformer voltage range of 10.5 ± 2 * 2.5% kV and 10.5 ± 5% kV What is the difference
1, the voltage range is the same, are 10kV ± 5%; 2, the difference is that the accuracy of different voltage regulator, 10.5 ± 2 * 2.5% kV transformer sub-switch has five stalls, respectively, 10.5 +5% kV, 10.5 + 2.5% kV, 10.5kV, 10.5-2.5% , 10.5-5% kV; and 10.5 ± 5% kV transformer section switch has three stalls, respectively .5 +5% kV, 10.5kV, 10.5-5% kV; 3,10kV transformer sub-switch three more for the power failure regulator transformer, and sub-section switch five for overload regulator of the transformer, relatively speaking, the fifth gear than the third gear section switch Much more complex, so the price should be slightly higher for the load change is relatively large, the voltage quality requirements of the relatively high important occasions.
Q:The specific steps and procedures for installing the transformer
Oil-immersed or dry-type transformers are generally installed by the engineering team or factory installed do not know how much capacity your transformer is electronic or industrial power system
Q:How to calculate non - isolated power transformer parameters
T cycle, f frequency D minimum duty cycle Vout output voltage Vin input voltage Ton magnetizing time
Q:How is the insulation of the transformer divided?
The distribution of the impulse voltage on the winding is usually used as the basis for the design of the longitudinal insulation of the winding, but the inter-turn insulation should also take into account the effects of the long term power frequency operating voltage.
Q:What is the difference between the inverter and the transformer?
Literally speaking: the former is the conversion frequency, which is the conversion voltage. Structurally speaking: The former is a complex electronic device, the latter is relatively simple equipment. From the working principle speaking: Inverter: first input AC rectifier filter, the control circuit according to the needs of the output modulation signal, the signal control power output tube turn on and off (usually half bridge or full bridge), by changing the turn on and off time, The corresponding output frequency. Transformer: the usual sense of the transformer is composed of multiple coil winding and core components, in which one winding on the application of AC voltage, the other winding will produce the induced voltage, the voltage ratio for the winding turns ratio, The main frequency of the output frequency is the same as that of the input, and the harmonics are predominantly even.

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