In power system and circuit analysis, we often encounter the concepts of "power out" and "power absorption". They describe the role of circuit elements in the process of power conversion and are the key to understanding and analyzing circuit behavior. This article will first give a brief answer to judging power out and power absorption, and then elaborate on the relevant principles and judgment methods. I. Brief answer In a circuit, if a component (such as a power supply or generator) provides power to other parts, we say it is "emitting power". On the contrary, if a component (such as a load or resistor) consumes power from the circuit, we say it is "absorbing power". In short, power out is the provider of power, while power absorption is the consumer of power. II. Detailed analysis Basic concept of power Power is a physical quantity that describes the work done per unit time, usually in watts (W). In a circuit, power represents the rate of power conversion, which can be the conversion of power into other forms of energy (such as heat energy, light energy, etc.), or the conversion of power between different voltage or current levels. Power out Power out is usually associated with power supply or power generation equipment. For example, batteries, generators, or AC power supplies are typical power providers. When these devices are working, they convert other forms of energy (such as chemical energy, mechanical energy, etc.) into electrical energy and provide it to the load through the circuit. In this process, the power supply or power generation device is emitting power. The calculation of emitted power usually involves the measurement of current and voltage. In a DC circuit, the emitted power is equal to the product of current and voltage (P = IV), where I is the current and V is the voltage. In an AC circuit, because the voltage and current may change over time, more complex formulas are required to calculate the average or effective power. Absorbed power Absorbed power is associated with the load element in the circuit. The load can be any device that consumes electrical energy, such as a resistor, a motor, a light bulb, etc. When current passes through these loads, the electrical energy is converted into 

PERFORMANCE STANDARD FOR GOVERNORS ON ENGINE GENERATOR SETS 1. SCOPE   This standard covers mechanical, hydraulic and electric governors used for controlling speed and/or loading of engine-driven generator systems. The system may involve a single unit or multiple units operating in parallel. It may serve as a prime or emergency standby power source. Operation may or may not be in conjunction with an external power bus.   2. REFERENCE STANDARDS.0 REFERENCE STANDARDS MIL.-STD.-705 B Frequency and voltage regulation, stability and transient response tests. IEEE 100—1988 Standard Dictionary of Electrical and Electronic terms. EGSA-101E—1984 Glossary of Standard Industry Terminology and Definitions, Electrical. EGSA-101M—1984 Glossary of Standard Industry Terminology and Definitions, Mechanical. EGSA-100M—1992 Performance Standard for Multiple Engine Generator Set Control Systems.   3. DEFINITIONS.0 DEFINITIONS   3.1 Speed Governing System.   A speed governing system consists of a speed governor and fuel metering device which controls the fuel supply to the engine. The speed governing system senses speed and perhaps load, and meters the engine fuel supply such that speed tends to remain constant or to vary with load in a predetermined manner.   3.1.1 Speed Governor. The speed governor includes those elements which are directly responsive to speed and/or load and which position or influence the action of a fuel metering device to maintain the operating speed. When operating in parallel with an independent power source such as the utility company, the governor will act to regulate load. 3.1.2 Fuel Metering Device. A fuel metering device is an element directly or indirectly positioned by the speed governor; e.g., variable displacement pumps, fuel metering pumps, carburetors and other devices that meter fuel into the combustion system. 3.1.2 Fuel Metering Device. A fuel metering device is an element directly or indirectly positioned by the speed governor; e.g., variable displacement pumps, fuel metering pumps, carburetors and other devices that meter fuel into the combustion system.  

There are many classification methods for generator sets, which can be classified into high, medium, and low-speed units based on the rated speed of the engine; According to the rated power output of the unit, it can be divided into large, medium, and small units; According to the output voltage frequency of the generator set, it can be divided into AC generator set (intermediate frequency 400Hz, power frequency 50Hz) and DC generator set. When the voltage frequency is 50Hz, the calibration voltage of small and medium-sized generators is generally 400V (three-phase) or 230V (single-phase), and the calibration voltage of large generators is generally 6.3-10.5k/V. However, the more commonly used classification method is based on the type of fuel used in the internal combustion generator set, control mode, purpose, and appearance structure.

WINDING PROTECTION IS A KEY ISSUE WHEN USING GENERATOR SETS Generator system： •Anti-condensation space heaters • Coastal Insulation protectio DEMANDING ENVIRONMENTS Environmental stress is usually classified according to four criteria: •Humidity is a problem because it is an electrical conductor. It is therefore likely to encourage the development of potential short-circuits. Moreover, moisture tends to accumulate in the bottom of the machine, where it mixes with dust and does even more damage to the windings Dust and other particlesconstitute another hazard, as they cause mechanical abrasion of the varnish, which will gradually lead to a Xiamen ZTA Power System Co.,Ltd Power system supplier-Generator sets, Lighting Tower, Reefer Genset Add: Room C5, No. 113, Chengyi North Street, Software Park III, Torch High-tech Zone, Xiamen,China. Email: nancy@ztapower.com | www.ztapower.com Skype: nancy19830320 Tel/WhatsApp/Wechat: +86-1390 6008 114

Under non-rated on-site conditions and special loads, the rated power of Cummins generator sets needs to be corrected. Dongfeng Cummins generator set price, Xiamen ZTA Power tells what the correction methods are: 1 Power correction of ambient temperature When the ambient temperature is too high, the air density decreases, the amount of oxygen during diesel engine combustion decreases, and the combustion efficiency decreases, thereby reducing the mechanical output power of the diesel engine; at the same time, the generator needs cold air to cool the winding when it is working. When the ambient temperature is too high, the cooling effect is reduced, and the internal temperature of the generator winding increases. In order to ensure that the winding temperature of the generator is within the allowable range, the output power of the generator must also be reduced. The output power of diesel engines and generators of various brands is affected by the ambient temperature. Due to different designs, the correction parameters are also inconsistent; the same brand, different models, and different speed control systems have different correction parameters. Generally, the correction parameters of the original diesel engine manufacturer should be used as the standard. Usually, the power loss can be calculated according to the output power decrease of 3%~4% for every 5℃ increase in ambient temperature above 40℃. However, it should be noted that the nominal power of some manufacturers' units is based on the output power at an ambient temperature of 25℃.

1、 What is the rated power factor of a generator set ? The rated power factor of a generator refers to its ability to output effective power at its rated capacity. In practical use, the power factor of a dg generator is generally 0.8 or 1.0. Among them, a power factor of 0.8 refers to the ratio of the product of the active power output at the rated capacity of the genset to the rated capacity; A power factor of 1.0 refers to the active power output by the diesel generator at rated capacity being equal to the rated capacity. 2、 What is the impact of power factor on generators? Power factor is one of the important factors that determine the efficiency and power quality of a generator. If the power factor of the generator is low, the required reactive power will increase correspondingly when outputting the same active power, which will lead to a decrease in the power quality of the generator and may even affect the normal operation of the power system. Therefore, choosing the appropriate power factor is very important.