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Precautions For Installation And Operation Of Dry-Type Transformers

Dec. 23, 2019

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3 phase power transformer manufacturer shares with you.

1. Reasonably select the installation location of the distribution dry-type transformer

The installation of distribution dry-type transformers should meet the user's voltage requirements, and try to avoid installing the distribution dry-type transformers in wild mountains and wild mountains, which are vulnerable to lightning and away from residential areas. This is not easy to operate personnel regular maintenance, not easy to staff management.

2. Reasonably select the capacity of the dry-type transformer for power distribution

It is also very important to choose the capacity of the distribution dry-type transformer reasonably, which can neither cause the overload of the distribution dry-type transformer to burn out nor can it cause the waste of a large horse-drawn cart. The capacity of distribution dry-type transformers should be selected reasonably according to the load situation of the users and the statistical capacity. For example: a 100kVA distribution dry-type transformer, when the power factor is 0.85, it can carry a load of 85kW.

 distribution transformer substation

3. Strengthen the measurement of electricity load

During the peak period of power load, the load measurement of each distribution dry-type transformer should be strengthened, and the number of measurements should be increased if necessary. The distribution dry-type transformer with an unbalanced three-phase current should be adjusted in time to prevent the neutral current from being excessive It is easy to blow the leads and cause user equipment to burn out.

4. Avoid installing low-voltage metering boxes on distribution dry-type transformers

The low-voltage metering box installed on the distribution dry-type transformer bench area should be gradually removed and replaced with indoor installation as much as possible. For example, when our company installed remote meter reading and metering in the past few years, in order to facilitate management and prevent power loss, For low-voltage metering boxes, due to long-term operation, the metering box glass is damaged or the low-voltage pile head of the distribution dry-type transformer is damaged and cannot be replaced in a timely manner, resulting in damage to the distribution dry-type transformer caused by burning out of the energy meter due to rain and other reasons.

5. Reasonably configure the high and low voltage fuses of the distribution dry-type transformer

The high- and low-voltage fuses of the distribution dry-type transformers have an unreasonable melt configuration, which is likely to cause severe overload of the distribution dry-type transformers and burn out the distribution dry-type transformers. High and low voltage melt configuration should follow: <1> Dry-type transformers with a capacity below 100kVA are configured with fuses with 2.0 to 3.0 times the rated current; <2> Dry-type transformers with a capacity above 100kVA are configured with 1.5 to 2.0 times the rated current. <3> The low-side fuse should be configured slightly larger than the rated current.

Our company provides distribution transformer substation.


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