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Apr 18,2020
Power quality problems and Industry background Dynamic reactive power, lower power factors, and higher harmonic content are common power quality problems in the CNC industry. Major contamination sources of power quality include the punching machines,welding machines. When harmonics occur, dynamic reactive current and 3-phase imbalance are produced. During the CNC period, the power factor of arc fu...
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May 26,2020
Power Factor: Power factor correction(Cosφ) Benefits of power factor correction Improves system power factor Reduces network losses Avoid penalty charges from utilities for excessive consumption of reactive power Reduces cost and generates higher revenue for the customer Increases system capacity and saves cost on new installations Improves voltage regulation in the network Increases power availab...
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Jun 06,2020
Overview A New Generation in Power Factor Correction Today's automation equipment benefits us with greater convenience as well as cost savings from higher production efficiency. However, it can also bring significant wave distortion problems to the power grid that can lead to energy loss, increasing costs and many other power quality issues. A clean and efficient power system normally generates a ...
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Jun 19,2020
Global compensation Where a load is continuous and stable, global compensation can be applied Principle The capacitor bank is connected to the busbars of the main LV distribution board for the installation, and remains in service during the period of normal load. Advantages The global type of compensation: Reactive current still flows in all conductors of cables leaving (i.e. downstream of) the ma...
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Jul 17,2020
Problem High Electricity Bills in Steel Factory. Analysis To analyze the power quality at Steels Factory and to understand the Voltage, Current, Power Factor, Active power,Reactive power, Apparent power, THD profile and to suggest the required solution to improve Power Factor, to qualify for Utility PF incentive. Towards fulfilling the need, fixed Capacitor bank of 2400KVAr has been installed at 1...
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Oct 21,2020
Our Indian Clients and African Clients has installed hybrid reactive power compensation system. After our guide, they use ZDDQ SVG mixed with Capapacitor banks based on Contactors and Thyristors. A united system of thyristor switched capacitor (TSC) and static var generator (SVG) was proposed to improve voltage regulation, stability, and power factor in ac transmission and distribution systems. Th...
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Nov 11,2020
With our best quality of our products and good relationship in the power quality field, we just received an important order for medium voltage capacitor banks. Backgroud. The rated voltage is 10kv. The total capacity is 35.4Mvar. There are individual type capacitor banks, central capacitor banks. Also there are fixed capacitor banks, and mulitipl-step automatic capacitor banks. As we know, STATCOM...
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Nov 30,2020
Relations between Reactive power,power factor and penalty Power Factor penalty is spelled out in the contract between the Power Company and Industrial or Commercial customer with large three phase loads. If the contract calls for 85% Power Factor, once the customer’s power factor falls below 85%, the Power Company bills the Customer according to the agreed penalty rates. Industrial loads are mostl...
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Dec 09,2020
The static var generator (SVG) with appropriate control method is a good solution to solve the problem of reactive power impact and harmonic pollution which is generated by the nonlinear load. A control strategy using active current separation and the current indirect control is used for SVG. The active current separation is a method for detecting the harmonic and reactive current, and then the su...
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Jan 05,2021
Research A recent ZDDQ survey shows that the global static VAR generator market is projected to grow remarkably owing to the persistent demand for stable power supply from the consumers. Knowing from Fortune Business Insights, in an upcoming report, titled, “Static VAR Generator“ Market Size, Share & Industry Analysis, By Type (Thyristor Based, MCR Based), By End-User (Electric Utility, Renewa...
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Jan 16,2021
Status analysis According to marketing research by ZDDQ(ANHUI ZHONGDIAN ELECTRC CO., LTD.). To reduce energy consumption and increase energy efficiency, many facility management executives are looking to renewable energy sources, such as solar or wind, to offset reliance on traditional electric power. Despite the growing prevalence of these solutions, there are drawbacks that can make alternative ...
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Jan 27,2021
Overview ZDDQ Active Power Filter have exported to many countries all over the world. These filters are widely used in a number of industries such as oil & gas, manufacturing, water/wastewater, metal and mining, and paper and pulp. A harmonic filter is used to mitigate harmonics created by non-linear loads in electrical equipment. Classification Ⅰ. Product Insights Based on product type, ...
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Feb 03,2021
HV/MV Power factor correction is directly related to the different aspects that assist the technical management of transport and distribution networks. These are: Power quality This involves the increase in the levels of voltage in substation busbars and line ends. Optimisation of the installation's cost of operation In other words, the decrease of the reactive energy and, therefore, the reduction...
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Mar 08,2021
High Voltage Power Capacitors Fields of Application INDIVIDUAL POWER FACTOR CORRECTION The power factor correction capacitor is connected directly to the terminals of the consumer and will be switched together with it. Advantages of individual capacitors at the load: • Complete control; capacitors cannot cause problems on the line during light load conditions • No need for separate switching...
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Mar 20,2021
A capacitor bank is a grouping of several identical capacitors interconnected in parallel or in series with one another. These groups of capacitors are typically used to correct or counteract undesirable characteristics, such as power factor lag or phase shifts inherent in alternating current (AC) electrical power supplies. FEATURES: Power factor correction by multi step design Standard & detu...
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Jul 22,2021
An example of how to calculate the capacity of reactive power (kVAr)? An Motor is supplying a load of 700 kW at a P.F (Power factor) of 0.65. What size of Capacitor in kVAr is required to raise the P.F (Power Factor) to unity (1)? And how many more kW can the motor supply for the same kVA loading when P.F improved. Supplying kW = 700 kW Original P.F = Cosθ1 = 0.65 Final P.F = Cosθ2 = 1 θ1 = C...
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Jan 20,2022
Static Synchronous compensator (STATCOM) is a fast-acting device capable of providing or absorbing reactive current and thereby regulating the voltage at the point of connection to a power grid. It is categorised under Flexible AC transmission system (FACTS) devices. The technology is based on VSCs with semi-conductor valves in a modular two-level configuration. ZDDQ Statcom have installed in many...
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Jun 30,2022
The benefits of power factor correction 1.Savings on the electricity bill Power factor correction eliminates penalties on reactive energy, decreases demand on kVA, and reduces power losses generated in the transformers and conductors of the installation. 2.Increased available power Fitting PFC equipment on the low voltage side increases the power available at the secondary of a MV/LV transformer. ...
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