Detective Factory -Exit Ghana 24 1600kva dry transformers
Writer： Hengfeng you electric Time：2023-04-23 views：times
On December 9, 2022, the workers of Hengfengyou Workshop were busy exporting to Ghana 1600kva dry transformer orders. The voltage level was 10/0.4kV, air -loading loss was 2450W, air -loading current was 0.85%, load loss was 11700W, short -circuit impedance 6 %, The connection group is Dyn11. The number is 24 units. At present, the order has entered the final stage of production, and then the factory testing and testing reports will be performed in turn to ensure that each transformer is delivered to the customer with high quality.
In general, there are two lines of dry transformers, one is the cable of the dry transformer, and the other is the zero wire of the dry transformer. These are important lines of dry transformers. So how does the zero line of the dry transformer connect?
1. The "input" and "output" wiring terminals of the transformer are tested with the insulation resistance with the ground wire with the Miole table. When measured at 1000V mesh meter, the resistance value is greater than 2m ohm.
2. The transformer input and output power cord cross section wiring shall meet the requirements of the current value; it is appropriate to configure according to the current density of 2-2.5A/min2.
3. The input and output three -phase power cord shall be connected to the panel color of the parent line of the transformer wiring. The housing and the center point of the transformer are connected. Usually, the ground lines and the zero line we are talking about are all caused by the neutral point of the transformer. (If the transformer has a case, the case should be connected to the box marker). Check the input and output cable to confirm correctly.
4. Electrify in the air first, and observe the test input output voltage meet the requirements. At the same time, observe whether there are abnormal sounds, fire, and odor inside the machine. If there are abnormalities, please disconnect the input power immediately.
5. When the empty load test is completed and normal, the load can be connected.
The above is the main connection method and method of the neutral line of the common dry transformer for your reference. If you have any other questions about the connection of the zero line of the dry transformer, please communicate with us at any time!
