1 million t/a Hebei Huafeng Energy Coking Project - with the help of Konstanz Electric high-voltage reactive power compensation complete device

Guided Reading

Hebei Huafeng Energy Technology Development Co., Ltd. is a large chemical energy enterprise mainly engaged in coal coking. The main equipment is some coal coking equipment, which has large load and high reactive power content, leading to low power factor. Through many contacts with the project, the 10KV high-voltage reactive power compensation complete set device of our company has been used, which has improved the power quality and achieved considerable economic benefits. The customer also highly praised our professional technology and considerate service!

Project overview

Hebei Huafeng Energy Technology Development Co., Ltd. is one of the second batch of modern production enterprises integrating coking, coal washing, power generation, chemical production and business services that meet the Coking Industry Access Requirements issued by the national development and reform authorities. The annual coke production capacity is 3.06 million tons, the annual power generation capacity is more than 600 million degrees, and the annual output of various chemical products is about 360000 tons. Among them, coking units include two 4.3 meter stamp charged coke ovens with an annual design capacity of 800000 tons, two 5.5 meter stamp charged coke ovens with an annual design capacity of 960000 tons, two 5.5 meter stamp charged coke ovens with an annual design capacity of 1.3 million tons, and supporting coke oven gas purification and gas power generation production units. In addition, in terms of deep processing and utilization of coal gas, it is equipped with a production unit that can produce 150000 tons of methanol and 50000 tons of synthetic ammonia annually. It is one of the largest coking energy enterprises in southern Hebei.

Power quality problems faced by coking energy enterprises and solutions

In recent years, with the development of coal chemical industry, the demand for electric energy is growing. As coal chemical enterprises are large consumers of electricity, most of their loads are inductive loads. When they are connected to the power grid, the power factor of the power grid will be reduced, the line loss will be significantly increased, and the available capacity of transformers and power supply lines will be reduced. In addition, the existence of various large-scale nonlinear load equipment will have a great impact on the entire power grid.

In order to solve this problem, the capacitance compensation mode of parallel capacitors is often adopted，The installation of compensation capacitor has the following advantages:

1. It can improve power factor and reduce line loss and transformer loss;

2. Reduce the voltage drop in power supply lines and transformers;

3. Increase the current reserve of electrical equipment such as transformers and power supply lines;

4. Save operating costs and other expenses.

Hebei Huafeng Energy Technology Development Co., Ltd. is one of the above enterprises. According to its design requirements and on-site load conditions, our company has given the customer's optimized compensation scheme - 10KV high-voltage reactive power compensation package device. The device automatically switches capacitor banks according to the voltage and reactive power of the power supply bus, tracks the load changes and compensates reactive power, so as to improve power factor, improve power supply quality and reduce power loss, It has saved the operating cost of the enterprise and achieved considerable economic benefits.

Complete set of high-voltage reactive power compensation device

KGC high-voltage shunt capacitor set is the most widely used reactive power compensation/filtering device at present. It is generally composed of shunt capacitor banks, series reactors, vacuum contactors, disconnectors, controllers, lightning arresters, discharge coils, protection measurement and other equipment, and is mainly used in three-phase AC power systems of 6kV, 10kV, 35kV, 110kV and other voltage levels.

Capacitor bank: mainly provide sufficient reactive power;

Series reactor bank: mainly limit the inrush current during capacitor switching, and absorb a harmonic current of the system at the same time;

Vacuum contactor: realize switching of capacitor bank;

Controller: control the contactor according to the set control target (voltage/power factor/reactive power);

Arrester: protect the capacitor device from the threat of switching overvoltage;

Discharge coil: it is mainly used to release the charge at both ends of the capacitor bank within a short time after the capacitor is out of operation, so as to avoid dangerous over-voltage during re operation of the capacitor;

During the implementation of the project, Hebei Huafeng Energy highly praised and affirmed our professional technology and considerate services! Konstanz Electric also adheres to the concept of customer first and service first. While meeting the on-site operating conditions, it tries to meet all the needs of customers and escort the development of green power!

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