SCB13 200Kva Cast Resin Insulated Transformer Connection Group

In the design process of SCB13 200KVA cast resin insulated transformer, the choice of wiring method is often not paid attention to. The connection mode between them has a great influence on the operation performance of the SCB13 200KVA dry-type transformer, and directly affects the power supply quality. Therefore, the selection of the wiring method is also a very important task in the design process of the SCB13 200KVA dry-type transformer.

At any time, the potential at one end of the high-voltage winding is positive, and the potential at one end of the low-voltage winding is also positive. The ends of the same polarity between the two windings are called the same end of the same name, denoted as "·", and vice versa. For synonym endings, write "-".

SCB13 200KVA cast resin insulated transformer wiring set is a representation method combining the primary winding and the secondary system.

SCB13 200KVA dry-type transformer winding has two connections, namely, "delta connection" and "star connection"; SCB13 200KVA dry-type transformer coupling group "d means delta connection, n means star connection with neutral, Y Indicates a star, 11 indicates the line-to-line voltage UAB on the secondary side of the primary side of the SCB13 200KVA dry-type transformer, and the line voltage UAB lags UAB by 330 degrees (30 degrees or higher).

The wiring group of SCB13 200KVA cast resin insulated transformer is represented by the capital letters of the primary side (or primary side) wiring method, and the secondary side (or secondary side) wiring method is represented by lowercase letters.

y (or y) is the star connection and d (or d) is the delta connection. The numbers are represented by clocks, which are used to represent the phase relationship of the first and second lateral voltages. The horizontal voltage phasor is used as the minute hand, fixed at the position of the clock point, and the secondary line voltage phasor is used as the hour hand.

"YN, D11", where 11 means that when the voltage phase of the primary side points to the 12:00 position of the clock as a thin needle, the line voltage phasor of the secondary side is at the 11:00 position of the clock. That is, the line voltage UAB on the secondary side lags behind the primary side voltage UAB by 330 degrees (or 30 degrees ahead).