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Method for reducing operation noise of distribution transformer by inhibiting user load imbalance

A distribution transformer and unbalanced load technology, which is applied in the direction of transformer/inductor noise damping, prevention/reduction of unnecessary electric/magnetic influence, etc., can solve the problem of distribution transformer noise increase, and achieve noise reduction, The effect of high control efficiency and low cost

Inactive Publication Date: 2020-11-27
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the above-mentioned problems in the prior art, a method for reducing the operating noise of the distribution transformer by suppressing the unbalanced user load is provided. The present invention can effectively solve the problem of the distribution transformer caused by the unbalanced three-phase load The problem of increased noise has the advantages of convenient operation, high control efficiency and low cost

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  • Method for reducing operation noise of distribution transformer by inhibiting user load imbalance
  • Method for reducing operation noise of distribution transformer by inhibiting user load imbalance

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Embodiment Construction

[0027] see figure 1 In this embodiment, the method for reducing the operating noise of the distribution transformer by suppressing user load imbalance includes:

[0028] 1) Detect whether the noise of the distribution transformer exceeds the standard, if the noise exceeds the standard, execute the next step, otherwise exit;

[0029] 2) Adjust the distribution transformer to balance the three-phase load.

[0030] see figure 1 , the detailed steps of step 2) in the present embodiment include:

[0031] 2.1) Detect the unbalance degree of the distribution transformer, if the unbalance degree exceeds the standard, execute the next step, otherwise exit;

[0032] 2.2) According to the three-phase load current of the distribution transformer, determine the cause of the excessive unbalance and its corresponding phase;

[0033] 2.3) If the cause of the unbalance exceeding the standard is that the load of the corresponding phase is too low, adjust the load of the specified size of ot...

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Abstract

The invention discloses a method for reducing operation noise of a distribution transformer by inhibiting user load imbalance. The method for reducing the operation noise of the distribution transformer by suppressing the user load imbalance comprises the following steps: judging whether noise standard exceeding and imbalance degree standard exceeding happen to the distribution transformer at thesame time; if noise standard exceeding and imbalance degree standard exceeding happen to the distribution transformer at the same time, adjusting the three-phase load balance of the distribution transformer until the noise of the distribution transformer reaches the standard. The method can effectively solve the problem that noise of the distribution transformer is increased due to unbalance of three-phase loads, and has the advantages of being convenient to operate, high in control efficiency and low in cost. The effect of transformer noise control is achieved by restraining user load factors, the method is a noise source control method, and the noise of the distribution transformer can be reduced fundamentally; no extra vibration reduction pad, sound insulation cover and other devices need to be installed; the method has the advantages of being convenient to operate, high in control efficiency and low in cost.

Description

technical field [0001] The invention relates to the technical field of transformer noise control, in particular to a method for reducing operating noise of distribution transformers by suppressing user load imbalance. Background technique [0002] There are a large number of distribution transformers and they are relatively close to residential areas. Resident disputes and complaints caused by noise often occur, causing serious social impact. The noise of a distribution transformer is closely related to its load status. The actual operating conditions of distribution transformers are harsh, and unbalanced three-phase loads are common, which is one of the main reasons for the increase in transformer noise. At present, for the problem of excessive noise of distribution transformers after they are put into operation, the control methods such as installing vibration damping pads and installing sound insulation covers are the main methods. Before construction, the transformer ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/33H01F27/34
CPCH01F27/33H01F27/34
Inventor 吴晓文曹浩陈非谭奔周卫华卢铃胡胜陈炜黄韬车垚周舟
Owner STATE GRID HUNAN ELECTRIC POWER
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