Products Description
In power transmission, in order to reduce long-distance transmission losses, power stations will use high voltages to send electricity to cities and factories. However, such a high voltage cannot be directly connected to electrical appliances or ordinary equipment at home, and a step-down transformer is required at this time. Its task is very simple-to turn high-voltage electricity into low-voltage electricity suitable for use, such as reducing 10kV to 380V, 220V or even lower. The appearance looks like a square box with an iron or aluminum shell, with an iron core and a winding coil inside. The primary side is connected to the high voltage, and the secondary side outputs the low voltage. As long as the parameters match, it can send out electrical energy stably and continuously, and it is almost not wasted.
Safe and reliable: high-voltage inlet and low-voltage outlet greatly reduce the risk of electric shock and equipment damage. The iron core and winding are designed according to standard insulation, which are high temperature resistant, moisture-proof and anti-aging.
High energy efficiency: high-quality silicon steel sheet and copper wire windings, low no-load and load loss, and low pressure on electricity bills for long-term operation.
Core advantages
Strong adaptability: it can be made into single-phase or three-phase according to demand, with a capacity ranging from a few hundred watts to several thousand kilovolt amps, which can meet household, commercial and industrial scenarios.
Good environmental tolerance: the shell is dustproof and waterproof with optional IP54/IP65, which can operate stably outdoors, on construction sites, and in basements, and is not afraid of temperature differences between hot and cold.
Long life: under normal use and maintenance, it can be used for more than ten years or more. The iron core is not easy to be saturated and the winding is not easy to burn.
Application scenario
KC01
Residential area
The high-voltage electricity from the substation is distributed to each household through the step-down transformer and becomes 220V daily electricity consumption.
KC02
Commercial buildings
The central power distribution room of shopping malls and office buildings uses it to drop to 380V/220V to supply air conditioners, elevators, lighting and other equipment.
KC03
Industrial production
Large-scale machinery in workshops often requires a voltage of 380V or lower. Step-down transformers can convert the high-voltage power supply in the factory into suitable specifications.
KC04
Special areas
Small oil-immersed or dry step-down transformers are used in remote areas to convert the high voltage of the local power grid into low-voltage electricity suitable for communication base stations, street lights or agricultural irrigation equipment.
Summary
The Step-down transformer is like a "translator" of a power system, turning a difficult "high-voltage language" into a "low-voltage language" that everyone can use safely.Choosing the right capacity, protection level and cooling method can ensure that it does not drop the chain at critical moments, so that the power can reach every place where it is needed stably.
| Tianjin Kechang International Trade Co.,Ltd | |||||||||
| S13-Nx3 type 6-10kv Oil immersed transformer(30-2500KVA) | |||||||||
| Model Number | Rated Volume Quantity (KVA) |
Voltage Combination(KV) | Connecttion Group Label | No-load Loss (W) |
Load Loss (W) |
No-load Electricity (%) |
Short Circuit Resistance (%) |
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| High Voltage | High Voltage Tap Range | Low Voltage | |||||||
| S13-M-30 | 30 | 6 6.3 10 10.5 |
±5% or ±2×2.5% |
0.4 | Dyn11 or Yyn0 |
80 | 630/600 | 1.5 | 4 |
| S13-M-50 | 50 | 100 | 910/870 | 1.3 | 4 | ||||
| S13-M-63 | 63 | 110 | 1090/1040 | 1.2 | 4 | ||||
| S13-M-80 | 80 | 130 | 1310/1250 | 1.2 | 4 | ||||
| S13-M-100 | 100 | 150 | 1580/1500 | 1.1 | 4 | ||||
| S13-M-125 | 125 | 170 | 1890/1800 | 1.1 | 4 | ||||
| S13-M-160 | 160 | 200 | 2310/2200 | 1.0 | 4 | ||||
| S13-M-200 | 200 | 240 | 2730/2600 | 1.0 | 4 | ||||
| S13-M-250 | 250 | 290 | 3200/3050 | 0.9 | 4 | ||||
| S13-M-315 | 315 | 340 | 3830/3650 | 0.9 | 4 | ||||
| S13-M-400 | 400 | 410 | 4520/4300 | 0.8 | 4 | ||||
| S13-M-500 | 500 | 480 | 5410/5150 | 0.8 | 4 | ||||
| S13-M-630 | 630 | 570 | 6200 | 0.6 | 4.5 | ||||
| S13-M-800 | 800 | 700 | 7500 | 0.6 | 4.5 | ||||
| S13-M-1000 | 1000 | 830 | 10300 | 0.6 | 4.5 | ||||
| S13-M-1250 | 1250 | 970 | 12000 | 0.5 | 4.5 | ||||
| S13-M-1600 | 1600 | 1170 | 14500 | 0.5 | 4.5 | ||||
| S13-M-2000 | 2000 | 1360 | 18300 | 0.4 | 5 | ||||
| S13-M-2500 | 2500 | 1600 | 21200 | 0.4 | 5 | ||||
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Note 1: For transformers with rated capacity below 500KVA, the load loss value on the left og the slash in the table is applicable to Dyn11, and the load loss value on the right of the slash ia applicable to Yyn0.
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