Dry type transformer The installation has received the attention of all of us. Dry type transformer For installation, we should pay attention to core technology. Dry type transformer The installation should pay attention to many problems. In general, attention should be paid to procedures and techniques when installing dry type transformers.
1. Effective selection of installation address for distribution dry-type transformers.
The installation of distribution dry type transformers should not only satisfy the requirements of customers' working voltage, but also minimize the installation of distribution dry-type transformers in barren hills and fields, vulnerable to lightning attack and siege and residential areas.
2. Effectively choose the volume of the distribution dry type transformer.
The effective selection of the volume of distribution dry-type transformers is also very important, which can not cause the distribution dry-type transformers to burn through the load, nor can it cause the waste of the big horse car. The volume of the distribution dry type transformer should be selected effectively according to the load of customers. For example, every 200 thousand volt A power distribution type dry transformer has a power factor of 0.85, and it can carry 86kW load.
3, improve the measurement of electricity load.
At the peak load level, the load of each distribution type dry type transformer should be increased. When necessary, the frequency of measurement should be increased. The distribution type dry type transformer with unbalanced three-phase current should be adjusted immediately, so that the power flow of the neutral line is too large to avoid burning the lead and cause the burn of the client equipment.
4. Avoid installing bottom pressure metering box on distribution dry type transformer.
The bottom pressure measuring box installed in the dry type transformer area of remote poverty-stricken areas should be revoked as soon as possible, so as to be installed in the room as far as possible. For example, in the previous two years, when we killed the electric power village, we must strictly manage and avoid the damage of electricity consumption. We installed bottom pressure metering boxes in remote and impoverished areas. The demolition and replacement immediately resulted in the damage of the distribution dry type transformer due to the burning of electric energy meters due to precipitation and other fundamental reasons.
5. Reasonable solution for high and low voltage fuse of dry distribution transformer
The dispose of high and low voltage fuse of distribution dry type transformer is not scientific. It is easy to cause the distribution dry type transformer to load more seriously and burn out the distribution dry type transformer. The high voltage and low pressure dissolving equipment should be followed: (1) the volume of the transformer is 200 thousand volts A; the following transformer is equipped with 2.2 to 5 times the rated voltage fuse; 2. The transformer with volume of 200 thousand volts A is equipped with 1.6 to 2.2 times the rated voltage of the solution; 3. The bottom pressure side fuse should be slightly larger than the rated voltage.
6, is not suitable for unauthorized adjustment of tap switch.
Because of the difference in power load between the three quarter of the year, the working voltage difference is slightly different, which is the requirement of working voltage. Some rural electricians randomly adjust the tap switch and do not carry out the relevant detection, resulting in the switch of the tap switch is not in time, resulting in two color short circuit fault and burning the distribution dry type transformer.
7. High speed insulation transformer cover for distribution dry type transformers.
In order to avoid damage caused by flood and external forces, it is necessary to refit high voltage and low-voltage insulation cover for small residential areas and mountain forest nature reserves, so as to avoid the loss of the transformer on the distribution dry type transformer and cause the short circuit of the bottom voltage to burn down the transformer.
The above are the main procedures and various methods for the installation of dry type transformers. For the installation of dry type transformers, we should pay attention to the above order, so that the installation of dry-type transformers will reach the standard and the quality will be improved.