Method for installing reactive compensation capacitor for transformer station
A technology for compensating capacitors and installation methods, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve the problems of unbalanced three-phase capacitance, poor heat dissipation, and low power factor of the power grid to achieve guaranteed power factor, ensuring the quality of power supply, and reducing maintenance costs
Inactive Publication Date: 2015-11-11
GUANGXI YUFENG CEMENT
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Problems solved by technology
Since the complete set of 6kV dry-type self-healing parallel capacitors was put into use, the capacitors have frequently bulged, leaked, and broken down, resulting in reduced and damaged capacitance values, resulting in unbalanced three-phase capacitance values, capacitor trips, and outages, resulting in The power factor of the power grid is lower than the management target value of 0.92, and even cannot be adjusted, and the maintenance cost remains high
[0004] 1. The performance of dry capacitor components is unreasonable
[0005] 2. The unit layout is unreasonable, and there are too many capacitors in the interval
[0006] 3. Poor cooling effect
Method used
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[0016] A method for installing reactive power compensation capacitors in substations, comprising the following steps:
[0017] Step 1. Select an oil-immersed shunt capacitor with a rated voltage of 6.6KV;
[0018] Step 2. Weld the bottom support frame within the interval of installing the reactive power compensation capacitor, and install the ventilation device under the bottom support frame;
[0019] Step 3. Weld the intermediate beam of the suspension insulator within the interval of installing the reactive power compensation capacitor, and install the insulator on the intermediate beam;
[0020] Step 4. Place the capacitor on the bottom support frame of the above step 2, install a fuse between the capacitor and the insulator, and then connect the capacitor.
[0021] The details of the 4 sets of reactive power compensation devices selected from the company's 3# substation are shown in Table 1.
[0022]
[0023] Table 1. Specific parameter table of 4 sets of reactive pow...
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The invention discloses a method for installing reactive compensation capacitors for a transformer station. The method includes selecting oil-immersed parallel capacitors with a rated voltage of 6.6kV, welding bottom bracing frame in the intervals between the intervals between reactive compensation capacitors, installing an updraft ventilator under the bottom bracing frame, welding and suspending an intermediate crossbeam of an insulator in the intervals between the reactive compensation capacitors, installing insulators on the intermediate crossbeam, placing the bottom bracing frame on the capacitors, installing fuses between the capacitors and insulator, and wiring the capacitors. In this way, normal operation of the capacitors is ensured, the power factor and power supply quality of the power grid are guaranteed, the maintenance cost is reduced, and the economic benefits is increased.
Description
technical field [0001] The invention relates to the field of reactive power compensation in substations, in particular to a method for installing reactive power compensation capacitors in substations. Background technique [0002] Parallel capacitors are currently the most widely used reactive power compensation equipment. It is mainly used to compensate the reactive power of the inductive load in the power system, which can effectively improve the power factor, reduce line loss and save electric energy, thereby improving the power supply quality of the power grid. [0003] Our company has 4 sets of reactive power compensation devices for substations, 1 set of 6kV oil-immersed shunt capacitors and 3 sets of 6kV dry self-healing shunt capacitors. Since the complete set of 6kV dry-type self-healing parallel capacitors was put into use, the capacitors have frequently bulged, leaked, and broken down, resulting in reduced and damaged capacitance values, resulting in unbalanced t...
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Login to View More IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 王真文廖红宋光海林惠忠吕森良巫敏军
Owner GUANGXI YUFENG CEMENT