Deskripsi
SBK-300KVA -SG-F Isolation Transformer, xc-sg, xc-sbk Series Three-Phase Dry-Type Transformers
Overview :
Product Introduction :
This series of transformers is specially designed for supporting the power supply of corporate equipment to solve the confusion caused by different voltages at home and abroad (such as three-phase input 1200v, 1140v, 690v, 660v, 440v, 420v, 400v, 380v, 360v three-phase output 480v, 460v, 440v, 415v, 400v, 240v, 230v, 220v, 210v, 208v, 200v, 190v, 182v, 173v, 120v, 110v, 100v, etc., or designed according to customer requirements). Its product features include stable operation, excellent performance, fire prevention, moisture resistance, safety and reliability, energy saving and easy maintenance.
Applicable places :
Are suitable for :
This series of isolation transformers are widely used in power transmission and distribution of import and export equipment, subways, high-rise buildings, airports, stations, printing, machine tools, docks, industrial and mining enterprises and tunnels, as well as the use of imported equipment.
Due to different local voltages, the voltage needs to be converted, specially tailored for electrical machinery and equipment.
◆Capacity: 0.5kva~5000kva
◆Insulation level: f or h
◆Frequency: 50/60hz (30hz-400hz can be designed according to customer requirements)
◆Number of phases: three-phase
◆Implementation standards
1. jb/t9646-1999 transformer standard
2. gb 19212.5-2006 isolation transformer standard
3. gb1094.11-2007 national power transformer standard
Usage conditions:
1. Altitude not exceeding 2000m.
2. Ambient temperature -25~+45℃
3. Relative humidity: The average maximum relative humidity in the humidest month is 90%
4. The waveform of the power supply voltage is similar to a sine wave.
5. Symmetry of multi-phase power supply voltage The power supply voltage connected to the multi-phase transformer should be approximately symmetrical.
6. Place without severe vibration and impact vibration
7. In a medium without explosion hazard, and without gas or conductive dust that can corrode metal and damage insulation.
8. A place not affected by rain or snow
Installation and usage instructions:
1. Open the box, take out the manual and other spare parts and the machine, and read the “Operation Manual” carefully for correct use.
2. Fix the transformer securely in a suitable position to ensure that it is not subject to vibration and corrosion.
3. Before use, the circuit must be tested to see if the grid voltage is the rated input voltage value. The allowable deviation is +-5%. If it greatly exceeds this range, Consider adding a voltage stabilizer to the front end to ensure the transformer works reliably.
4. Select wires with appropriate cross-sections and connect them according to the markings.
After checking that everything is correct, you can turn on the power and the transformer will work normally.
The cross-section of the grounding wire should not be less than 1.5mm.
Rated current calculation
Current = rated capacity (va)
———————- (a)
3x output (input) voltage v
Capacity unit: 1000va=1kva 1kw=1.25kva
Notes:
1. Before purchasing, estimate the total capacity of the electrical appliances you will use and use a transformer with a considerable margin.
2. When you use a multi-plug voltage transformer, the highest voltage can load the maximum rated capacity, and the capacity of the remaining plug voltages should be based on the maximum rated capacity.
The proportion of high voltage is reduced accordingly; and when more than two sets of voltage are used at the same time, the total load current shall not exceed the secondary current of the transformer.
3. Before installation, carefully check whether the data on the nameplate and the attached manual meet your requirements. Only after confirmation can you install and use it.
4. After power is turned on, the transformer core and coil will heat up (but the temperature rise does not exceed 80℃). This is a normal phenomenon. If the temperature rise is too high, it may even cause heat generation.
If smoke is detected, the power switch should be turned off, and the capacity of the electrical appliance you are using should be rechecked and adjusted.
5. During transportation, collisions should be avoided as much as possible, and moisture should not be allowed to form. During use, please pay attention to maintenance to ensure the service life of the transformer.
6. The nuts of each contact should be tightened to prevent fire on the street and heat from burning the connector.
7. In order to ensure the safety of the transformer, protective devices (such as fuses and thermal releases) should be installed to ensure reliable protection (overload protection devices should be installed).
The interrupting capacity is generally 1.1 times the rated capacity).
Product size table (voltage level below 1000v):
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Technical Parameters
Specifications and installation dimensions (0.5kva~5000kva)
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The voltage ratio of this product is 660/480/380/220, the number of power phases is three-phase, the rated power is 10.5-5000, the moisture-proof method is open, the cooling method is natural cooling, the cooling form is dry, the frequency characteristic is low frequency, the brand is Xiechang Power Supply, the winding form is three-winding, the core form is shell type, the core shape is E type, the efficiency (η) is 95%, the model is XC-SG, the processing customization is yes, and the application range is isolation
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