DBW SBW Compensated Voltage Stabilizer

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Product Description:

DBW SBW compensated voltage stablilizer is a contact adjustable automatic voltage compen-sation high-power regulating power device. When voltage from supply network is varied or dueto loading current effect, it automatically regulates the output voltage to ensure the normal func-tion of the varied of electric equipments.


Input voltageSingle phase: 220V; Three phases: 380V
Output voltageSingle phases: 220V±20% or 220V±30%
Three phases four-line: 380V±20% or 380V±30%
PhaseSingle phase; Three phases four-line
Responsewithin 1 sec.(against 10% input voltage deviation)
EfficiencyBetter than 95%
Ambient temperature-10oC~+40oC
WaveformNon-lack fidelity waveform
Insulation restortionBetter than 5MΩ
OverloadDouble rated current, one min
ProtectionOvervoltage, overcurrent, feed phases

3. Outline and packing

DBW-20K2070 x 50 x 1352831
DBW-30K3070 x 50 x 1353101
DBW-40K4070 x 50 x 1353301
DBW-50K5080 x 60 x 1503601
DBW-60K6080 x 60 x 1503801
DBW-70K7080 x 60 x 1501001
DBW-80K8090 x 70 x 1704301
DBW-100K10090 x 70 x 1704801
SBW-50K5080 x 62 x 1353501
SBW-60K6080 x 62 x 1353701
SBW-100K11085 x 52 x 1504201
SBW-150K150100 x 72 x 1705501
SBW-180K180100 x 72 x 1705701
SBW-200K200100 x 72 x 1706301
SBW-225K225110 x 80 x 1806601
SBW-250K250110 x 80 x 2007001
SBW-300K300110 x 80 x 2107401
SBW-320K320110 x 80 x 2107601
SBW-400K400110 x 80 x 210/211002
SBW-500K500110 x 80 x 210/215002
SBW-600K600110 x 80 x 210/222002
SBW-800K80085 x 100 x 220/328003
SBW-1000K100085 x 100 x 220/335003
SBW-1200K120085 x 100 x 220/341003
SBW-1600K1600110 x 110 x 220/455604
SBW-2000K2000110 x 110 x 220/471004

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Q:What is the difference between the SGB10 transformer and the SC (B) 10 transformer?
Both transformers are dry transformers. 1, SG (B) 10 is an open dry change, he used the United States DUPONT company's NOMEX insulation paper insulation (high voltage coil, you can see is white, if it is darker that is covered with glass wire The former is American technology, the latter is German technology.) The low voltage coil is a copper foil (there is a B in the model that is made of copper foil). The same is true of B in the SC (B). High and low coils are insulated with VPI (vacuum pressure dipping). The surface of a layer of epoxy resin insulation paint wrapped up. 2, SC (B) 10 model means that the epoxy resin pouring dry change (low pressure is copper foil). The high voltage coil is sealed with an epoxy resin, but the low pressure coil epoxy is hard to pour in, but at the end of the coil is sealed with an epoxy resin. 3,10 is the design serial number, representing the loss standard value. 4, there is a dry change, model SCR (B) 10, he is non-epoxy resin casting package. All with NOMEX paper plus silicone encapsulation is the French technology. This product yield less, better quality. Maybe the price will be higher. You can also look at it. 5, is currently in the country is the three kinds of technology transformers. Epoxy resin pouring products are mostly "F" class insulation level, a few also have "H". SG (B) 10 majority is "H" level. , A few are "C" level. SCR (B) 10 is "H" level. If you still want to know what, you can give me a message.
Q:How long does it take to restart the transformer?
What are the requirements for the commissioning and outage of the transformer? A: (1) the new operation of the transformer must be rated voltage under the impact test 5 times, overhaul after the impact test 3 times. (2) the transformer put into operation when the first cooler, cooler running for a period (about 15min) time, until the oil temperature is no longer rise and then stop. Disconnect the transformer first. (3) 110kV and above in the neutral point direct grounding system, put into operation and outage transformer, the operation must be grounded before the neutral point, after the operation and then decide whether to decide whether to disconnect. Transformer neutral point access to the arc suppression coil should be first after the exit. The neutral point of the two transformers should not be connected to a neutral bus with an arc suppression coil.
Q:What is the meaning of the Y D11 on the transformer?
Yn d11 said: high side is a star-shaped wiring with a neutral point of the lead-out, low-side side of the triangle wiring. Using 11-point connection, that is, high-voltage side of the line voltage ahead of the low voltage side line voltage of 30 degrees.
Q:Why can autotransformers be used as safety transformers?
The high and low voltage side of the autotransformer is realized by tapping in a coil, and there is no magnetic connection between the two times and there is an electrical connection, so it can not be used as a safety transformer. Isolation transformer high and low voltage coil is separated, the only magnetic connection between the two there is no electrical contact, so the role of security protection.
Q:How to use transformer 10 in DC circuit
DC circuit using the transformer, first of all to DC into AC (switch conversion), that is, with switching power supply. On the switching power supply is more complex than the proposed purchase of finished DC-DC module. Select the appropriate DC-DC module according to the required voltage and current.
Q:How to use the experimental method to determine the transformer iron consumption and copper consumption
No-load test for iron loss; short-circuit test copper loss. I suggest you read the book, see the information.
Q:Transformer is the transmission of electrical equipment
The transformer is an electrical device that converts the AC voltage level to achieve the purpose of power transmission.
Q:Production of high and low voltage switchgear transformer industry belongs to what industry category
Category C Manufacturing Electrical machinery and equipment manufacturing In the class 392 transmission and distribution and control equipment manufacturing
Q:Why is the transformer coil insulation?
Insulation grade refers to the heat resistance of the insulation material used, divided into A, E, B, F, H grade. Allowable temperature rise is the limit of the temperature of the motor compared to the ambient temperature. Insulation temperature Class A Class E Class B Class F Class H Maximum allowable temperature (° C) 105 120 130 155 180 Winding temperature limit (K) 60 75 80 100 125 Performance reference temperature (° C) 80 95 100 120 145 Generators and other electrical equipment, the insulation material is the most weak link. Insulation material is particularly susceptible to high temperature and accelerated aging and damage. Different insulation materials have different heat resistance, the use of different insulation materials, electrical equipment, the ability to withstand high temperatures are different. So the general electrical equipment is specified in the maximum temperature of its work. According to the different insulation materials to withstand the high temperature of its ability to set the maximum allowable temperature of seven, according to the temperature size were: Y, A, E, B, F, H and C. Their allowable operating temperatures are: 90,105,120,130,155,180 and 180 ℃ above. Therefore, Class B insulation indicates that the insulation temperature of the generator used is 130 ° C. The user should ensure that the generator insulation does not exceed the temperature during operation of the generator to ensure proper operation of the generator. Insulation class for the B-class insulation material, mainly by the mica, asbestos, glass fiber by the organic glue or impregnated from. Commonly used B-class insulation materials are PVC glass fiber casing (yellow wax tube), 6520 composite paper, DMD insulation paper.
Q:How do you choose the public transformer capacity?
In the actual choice, should adhere to the "small capacity, dense point" principle Distribution transformer location should be located in the load center, and the power supply radius of not more than 0.5 km. Distribution transformer load rate between 0.5 to 0.6 the highest efficiency, At this time the capacity of the transformer is called the economic capacity. But if the load is relatively stable, then the continuous production of the situation can be selected according to economic capacity transformer capacity.

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