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transformer is an electrical device used to convert high voltage or high current into low voltage or low current for the purpose of measurement and protection of power systems. Transformers typically consist of a core and coils, with the coils wound around the core. When the current or voltage passing through the transformer changes, the current or voltage in the coils also changes accordingly. This change can be measured and recorded to monitor the status and performance of the power system.
The main function of a transformer is to convert high voltage or high current into low voltage or low current for measurement and protection of power systems. In power systems, high voltage and high current can pose risks to equipment and personnel, so it is necessary to convert them into low voltage and low current for measurement and monitoring. Transformers can also be used for the protection of power systems. For example, when a fault occurs in a power system, transformers can detect abnormal changes in current or voltage and trigger protective devices to ensure the safety and stable operation of the power system.
There are many types of transformers, including current transformers, voltage transformers, and combination transformers. Different types of transformers are suitable for different power systems and application scenarios. For example, current transformers are typically used to measure current in power systems, while voltage transformers are used to measure voltage. Combination transformers can measure both current and voltage simultaneously, enabling comprehensive monitoring and protection of power systems.
In summary, transformers are essential devices in power systems. They convert high voltage or high current into low voltage or low current for measurement and protection of power systems. Different types of transformers are suitable for different power systems and application scenarios, helping to achieve comprehensive monitoring and protection of power systems.
| Bated primary current(A) | Batod primary current(A) | Ratod secondary output(VA) | 1s themal current(kA) | Rateddynamic current(kA) | ||
| 0.2S | 0.2(0.5) | 10P | ||||
| 5 | 0.2S/10P10 0.28/10P15 0.2/10P10 0.2/10P15 0.5/10P10 0.5/10P15 | 10 | 10 | 15*,20 | 0.5 | 1.25 |
| 10 | 2.5 | |||||
| 15 | 1.5 | 3.75 | ||||
| 20 | 3 | 7.5 | ||||
| 25 | 3.75 | 9.3 | ||||
| 30 | 4.5 | 11.2 | ||||
| 40 | 6 | 15 | ||||
| 50 | 7.5 | 18.7 | ||||
| 75 | 10 | 25 | ||||
| 100 | 15 | 37.5 | ||||
| 150 | 22.5 | 56 | ||||
| 200 | 31.5 | 80 | ||||
| 300 | 10*,15 | 45 | 122.5 | |||
| 400 | ||||||
| 500 | 63 | 130 | ||||
| 600 | 80 | 110 | ||||
| 800 | 15*,30 | |||||
| 1000 | ||||||
| 1200 | 100 | 160 | ||||
