<P>1. Selected diesel generator performance and quality must meet the standards </P>
<P>Diesel generators are widely used in telecommunications, finance departments, hospitals, schools, business and other departments, industrial and mining enterprises and residential emergency standby power, military and field operations, special purpose vehicles and ships, and other independent power supply. </P>
<P>Diesel generator sets as a communication, must meet GB2820-1997 in the G3 or G4 grade level requirements, while and "communications quality diesel generator sets certification testing implementation details into the net" provisions of the 24 performance requirements, through established by the competent department of China's Communication Power Supply Equipment Quality Supervision and Inspection Center of the strict test. </P>
<P>Diesel generator for military communications group, to achieve the GB2820-1997, GJB relevant departments to develop relevant standards and force the "communication power supply quality testing" provision, and to the relevant organization departments of the equipment through strict quality tests. </P>
<P>2. The choice of diesel generator sets should be considered a major factor </P>
<P>The choice of unit main factors should be considered mechanical and electrical performance, the unit uses, load capacity and range, automated functions. <BR>(1) Unit uses. As commonly used diesel generators for standby and emergency situations, etc. Thus, different uses of the requirements of diesel generators to be different. <BR>(2) load capacity. Should be selected according to different uses load capacity and load range, determine the stand-alone diesel generator set machine capacity and backup diesel generator capacity. <BR>(3) Unit of the use of environmental conditions (mainly refers to the altitude and climatic conditions) <BR>(4) the choice of diesel generator (5) the choice of the generator and excitation mode (6) diesel generator automation option two, the optional standard diesel generator </P>
<P>Communication with the diesel generator into the network quality certification testing implementation details>> specified performance requirements of 24: </P>
<P>1. Appearance requirements (1) diesel generator set limits, mounting and connection dimensions are in line with prescribed procedures approved factory goods pattern (2) Unit should be firmly welded, the weld should be uniform, no welded through, undercut, clip slag and porosity and other defects, welding slag welding flux should be cleaned; film should be uniform, no obvious cracks and fall off; coating should be smooth, seamless plated spots, corrosion and other phenomena; unit should not be loose fasteners. <BR>(3) electrical installation of diesel generators should meet the circuit, the wires connecting the unit should be easy to fall off at the obvious signs. <BR>(4) diesel generator terminal should be grounded. <BR>(5) diesel generator complete signage content </P>
<P>2. Insulation resistance and dielectric strength (1) Insulation resistance: each of the independent loop electrical circuit between the ground and the insulation resistance should be greater than 2M <BR>(2) Dielectric strength: Units of the independent electrical circuit between the ground and the circuit should be able to withstand the test voltage AC 1min, there should be no breakdown or flicker. </P>
<P>Circuit voltage test voltage <BR><100V 750V <100V 750V <BR>≥100V 1440V ≥ 100V 1440V </P>
<P>3. Phase sequence requirements. Diesel generator set control panel terminal phase order positive side from the control panel should be from left to right or from top to bottom order. </P>
<P>4. Ready to run diesel generators to maintain the state requirements. Unit should have the heating device, to ensure that its emergency starts and fast loading of the oil temperature, cooling medium temperature of not lower than 15 ℃ </P>
<P>5.Automatically starts the reliability of power supply and automatic shutdown inspection (1) then self-control or remote start command, the diesel power generation should be able to start automatically. <BR>(2) The unit automatically starts after the 3rd failed, failed to start signal to be sent; equipped with reserve units, the program should be able to start the system automatically starts the command passed to the other standby unit. <BR>(3) to issue commands to automatically start from the power to the load time should be no more than 3min <BR>(4) diesel generator starts automatically after the success of the first load amount shall be not less than 50％ of the calibration load. <BR>(5) self-control or remote access stop instruction, the unit should be able to automatically shut down; for the electricity grid and used with the standby unit, returned to normal when the power grid, diesel generators should be able to automatically switch or automatic shutdown, the shutdown delay shutdown mode time, the conditions should be consistent with the provisions of product technology. </P>
<P>6, the success rate of start automatically. Automatic start of not less than 99％ success rate. </P>
<P>7, no-load voltage setting range requirements.Unit load voltage setting range of not less than 95％ -105％ calibration voltage. </P>
<P>8, automatic replenishment functional requirements. Unit should be able to automatically start charging the battery. </P>
<P>9, automatic protection requirements. Unit should phase, short circuit (less than 250KW), over current (not more than 250KW), too fast, the water temperature high cylinder temperature, oil pressure protection. </P>
<P>10, the line voltage sine wave distortion. In the no-load voltage calibration, calibration frequency, the line voltage sine wave distortion rate <5％. </P>
<P>11, steady state voltage regulation rate ≤ 250KW> 250KW <BR>3％ 2％ 3％ 2％ </P>
<P>12, the voltage transient adjustment rate ≤ 250KW> 250KW <BR>20％ 15％ 20％ 15％ </P>
<P>13, voltage stabilization time ≤ 250KW> 250KW <BR>≤2s ≤1.5s ≤ 2s ≤ 1.5s </P>
<P>14, the voltage wave ≤ 250kw> 250kw <BR>0.8％ 0.5％ 0.5％ 0.8％ </P>
<P>15, the frequency steady-state regulation ≤ 250kw> 250kw <BR>3％ 3％ 3％ 3％ </P>
<P>16, frequency transient regulation ≤ 250kw> 250kw <BR>9％ 9％ 9％ 9％ </P>
<P>17, frequency stabilization time ≤ 250kw> 250kw <BR>5s ≤5s 5s ≤ 5s </P>
<P>18, the frequency volatility ≤ 250kw> 250kw <BR>≤0.8％ ≤0.5％ ≤ 0.8％ ≤ 0.5％ </P>
<P>19, three-phase asymmetric load voltage deviation under 25％ of diesel generator set in the three-phase symmetrical load, in any phase plus 25％ of the calibration phase power resistive load, the unit should be able to work, the maximum line voltage or the average minimum and three-wire voltage of 5％. </P>
<P>20, noise from the engine and generator units at the noise pressure 1m average: <BR>≤250KW >250KW ≤ 250KW> 250KW <BR>≤102db(A) ≤108db(A) ≤ 102db (A) ≤ 108db (A) <BR>Noise level: <BR>Sleep <45db neighborhood noise during the day can not exceed 50 dB at night should be less than 45 (40) decibels work <65 db average person about the sound of 40 dB can be maintained under the normal reaction and attention, but in the 50 dB above the work environment, there will be a long time, hearing loss, emotional upset, or even cause the phenomenon of neurasthenia. <BR>Listening to music over 80 decibels of noise 80db children live in an environment, resulting in up to 50％ of deaf persons, the noise level below 80 decibels only in order to maintain long-term work will not be deaf for 40 years; at 100 decibels, only 60％ not deaf.If you have long lived in an environment above 80 decibels will cause emotional irritability, hearing loss. Noise is harmful to human central nervous system and can induce cardiovascular diseases, the noise environment in a strong feeding, gastrointestinal contraction of capillaries occurs, digestive secretion and gastrointestinal motility will be reduced, so that normal blood supply has been damaged. Noise will result in a strong abnormal pregnancy, children's mental retardation.Therefore, daily life, we should try to reduce noise sources and transmission. <BR>The following 85 decibels can cause hearing loss mild; <BR>85 dB -90 dB noise can cause deafness minority; <BR>90-100 decibels can cause a certain amount of noise-induced hearing loss; <BR>100 dB or more, will result in a significant number of noise-induced hearing loss, these are chronic noise-induced deafness. <BR>5 minutes more than 105 dB schizophrenia </P>
<P>21 、燃油消耗率。 21, the fuel consumption rate. 機(jī)組標(biāo)定功率在120 Rated power of 120 unit <BR>22 、柴油發(fā)電機(jī)消耗率 。 22, diesel generator consumption. 機(jī)組標(biāo)定功率>40KW，機(jī)組消耗率≤3.0G/KW.H Unit rated power> 40KW, unit consumption ≤ 3.0G/KW.H </P>
<P>23 、在標(biāo)定工況下運(yùn)行試驗(yàn)機(jī)組在所規(guī)定的工作條件下（GB2820中的4.2節(jié)） ，機(jī)組能以標(biāo)定工況正常連續(xù)運(yùn)行12h（其中包括過載10％運(yùn)行1h），且柴油發(fā)電機(jī)組應(yīng)無漏水和漏氣現(xiàn)象 。 23, conditions in the calibration run test unit at the required operating conditions (GB2820 in Section 4.2), the unit can run continuously calibrate the normal operating mode 12h (including 10％ overload operation 1h), and diesel generator sets should be No leaks and air leaks. </P>
<P>24 、遙控、遙信和遙測(cè)性能（1） 智能型機(jī)組 24, remote control, remote and telemetry performance (1) Intelligent Unit <BR>200KW以上的機(jī)組應(yīng)為智能型 ，其監(jiān)控內(nèi)容和接口要求如下： 200KW or more units shall be intelligent, their monitoring content and interface requirements are as follows: <BR>①遙控：開/關(guān)機(jī) 、緊急停車、切換主備用機(jī)組 。 ① remote control: on / off, emergency stop, switch the main and backup units. <BR>②遙信：工作狀態(tài)（運(yùn)行/停機(jī)） 、工作方式（自動(dòng)/手動(dòng)）、主要用機(jī)組 ，過壓 、欠壓、過流 、頻率③遙測(cè)：三相輸出電壓 、三相輸出動(dòng)電池電壓、輸出功率 。 ② Remote Communication: Work status (run / stop), work (automatic / manual), the main use of units, over voltage, under voltage, over current, frequency ③ Telemetry: Three-phase output voltage, three-phase output dynamic battery voltage, output power. <BR>④接口：應(yīng)具有通信接口（RS-232和RS-485/422）并能提供完整的通信協(xié)議。 ④ interface: should have a communication interface (RS-232 and RS-485/422) and can provide a complete communication protocol. </P>
<P>（2）非智能型機(jī)組 (2) Non-intelligent unit <BR>200KW及以下的非智能型機(jī)組無遙控 、遙信和遙測(cè)要求 。 200KW and below, non-intelligence unit without remote control, remote and telemetry requirements. <BR>三、應(yīng)急柴油發(fā)電機(jī)的選擇 Third, the choice of the emergency diesel generators </P>
<P>應(yīng)急柴油發(fā)電機(jī)主要用于重要場(chǎng)所 ，在緊急情況或事故停電后瞬間停電 ，通過應(yīng)急發(fā)電機(jī)組迅速恢復(fù)并延長一段供電時(shí)間。 Emergency diesel generator is mainly used for important place, in case of emergency or accident immediately after the power outage, emergency generators through the rapid recovery and extend the time period of power. 這類用電負(fù)荷稱為一級(jí)負(fù)荷 。 Electricity load such as a load. 對(duì)斷電時(shí)間有嚴(yán)格要求的設(shè)備 、儀表及計(jì)算機(jī)系統(tǒng) ，除配備發(fā)電機(jī)外還應(yīng)設(shè)電池或UPS供電。 Time, there are strict requirements on power equipment, instrumentation and computer systems, in addition to outside should be set with a generator or a UPS battery power. </P>
<P>應(yīng)急柴油發(fā)電機(jī)的工作有兩個(gè)特點(diǎn)： The work of the emergency diesel generators have two characteristics: <BR>第1個(gè)特點(diǎn)是作應(yīng)急用 ，連續(xù)工作的時(shí)間不長 ，一般只需要持續(xù)運(yùn)行幾小時(shí)（≤12H）； 1 characteristic is for emergency use, the continuous working time is not long, generally continuous operation only a few hours (≤ 12H); <BR>第2個(gè)特點(diǎn)是作備用 ，應(yīng)急發(fā)電機(jī)組平時(shí)處于停機(jī)等待狀態(tài) ，只有當(dāng)主用電源全部鼓障斷電后，應(yīng)急柴油發(fā)電機(jī)組才起動(dòng)運(yùn)行供給緊急用電負(fù)荷 ，當(dāng)主用電源恢復(fù)正常后 ，隨即切換停機(jī)。 Section 2 is characterized as a backup, emergency generator shut down normally in a wait state, and only when the main power supply after power failure all the drum barrier, before starting the emergency diesel generators supply emergency power load operation, when the main power supply is back to normal, then switch downtime. </P>
<P>（1） 應(yīng)急柴油發(fā)電機(jī)發(fā)電機(jī)容量的確定 (1) emergency diesel generators to determine generating capacity </P>
<P>應(yīng)急柴油發(fā)電機(jī)組的標(biāo)定容量為經(jīng)大氣修正后的12h標(biāo)定容量 ，其容量應(yīng)能滿足緊急電總計(jì)算負(fù)荷 ，并按發(fā)電機(jī)容量能滿足一級(jí)負(fù)荷中單臺(tái)最大容量電動(dòng)機(jī)起動(dòng)的要求進(jìn)行校驗(yàn)。 Calibration of the emergency diesel generator capacity is modified by the atmospheric calibration 12h capacity, its capacity should be able to meet the emergency power load of the total calculated in accordance with the load generating capacity to meet a maximum capacity of a single motor starting requirements validation . 應(yīng)急發(fā)電機(jī)一般選用三相交流同步發(fā)電機(jī) ，其標(biāo)定輸出電壓為400V Emergency generator is generally used in three-phase AC synchronous generator, its rated output voltage is 400V </P>
<P>（2） 應(yīng)急柴油發(fā)電機(jī)組臺(tái)數(shù)的確定 (2) emergency diesel generator sets to determine the number of </P>
<P>有多臺(tái)發(fā)電機(jī)組備用時(shí) ，一般只設(shè)置1臺(tái)應(yīng)急柴油發(fā)電機(jī)組，從可靠性考慮也可以選用2臺(tái)機(jī)組并聯(lián)進(jìn)行供電 。 When more than one standby generator set is generally only set one emergency diesel generator sets, you can choose from 2 to consider the reliability of generating units to supply power in parallel. 供應(yīng)急用的發(fā)電機(jī)組臺(tái)數(shù)一般不宜超過3臺(tái) 。 Taiwan urgently supply the number of generating units generally should not exceed 3 units. 當(dāng)選用多臺(tái)機(jī)組時(shí)，機(jī)組應(yīng)盡量選用型號(hào) 、容量相同 ，調(diào)壓、調(diào)速特性相近的成套設(shè)備 ，所用燃油性質(zhì)應(yīng)一致 ，以便進(jìn)行維修保養(yǎng)及共用備件。 Elected with more than one unit, the unit should try to use models, the same capacity, voltage, speed characteristics similar equipment, the nature of the fuel should be the same for maintenance and common spare parts. 當(dāng)供應(yīng)急用的發(fā)電機(jī)組有2臺(tái)時(shí) ，自起動(dòng)裝置應(yīng)使2臺(tái)機(jī)組能互為備用 ，即市電電源故障停電經(jīng)過延時(shí)確認(rèn)以后，發(fā)出自起動(dòng)指令 ，如果第1臺(tái)機(jī)組連續(xù)3次自起動(dòng)失敗 ，應(yīng)發(fā)出報(bào)警信號(hào)并自動(dòng)起動(dòng)第2臺(tái)柴油發(fā)電機(jī)。 When the supply of urgently generating units have 2, the self-starting device should enable the two units to each other backup, that is, after mains power failure, power outage delayed confirmation, issued since the start command, if 1 unit for 3 consecutive times since starting failure, should be an alarm and automatically start the first 2 sets of diesel generators. </P>
<P>（3） 應(yīng)急柴油發(fā)電機(jī)的選擇 (3) the choice of the emergency diesel generators </P>
<P>應(yīng)急機(jī)組宜選用高速 、增壓 、油耗低、同容量的柴油發(fā)電機(jī)組 。 Emergency units should use high-speed, pressure, low fuel consumption, with the capacity of the diesel generator. 高速增壓柴油機(jī)單機(jī)容量較大 ，占據(jù)空間小 ；柴油機(jī)選用配電子或液壓調(diào)速裝置 ，調(diào)速性能較好 ；發(fā)電機(jī)宜選用配無刷勵(lì)磁或相復(fù)勵(lì)裝置的同步電機(jī) ，進(jìn)行較可靠，故障率低，維護(hù)檢修較方便 ；當(dāng)一級(jí)負(fù)荷中單臺(tái)空調(diào)器容量或電動(dòng)機(jī)容量較大時(shí) ，宜選用三次諧波勵(lì)磁的發(fā)電機(jī)組 ；機(jī)組裝在附有減震器的共用底盤上 ；排煙管出口宜裝設(shè)消聲器，以減小噪聲對(duì)周圍環(huán)境的影響 。 Stand-alone high-speed turbocharged diesel engine larger capacity, small footprint; diesel use with electronic or hydraulic adjustment device, the speed performance is better; generator should use with brushless excitation or phase compound excitation device synchronous motor, the more reliable, fault low, easy maintenance and overhaul Jiao; when a load in a single larger capacity air conditioner capacity or the motor, the better to use the third harmonic excitation generator; machine assembled in a shared chassis with a shock absorber; smoke the outlet should be installed muffler to reduce noise on the surrounding environment. </P>
<P>（4） 應(yīng)急柴油發(fā)電機(jī)組的控制 (4) the control of the emergency diesel generators </P>
<P>應(yīng)急發(fā)電機(jī)組的控制應(yīng)具有快速自起動(dòng)及自動(dòng)投入裝置 。 Emergency generator set control should be fast from the start and automatic devices. 當(dāng)主用電源故障斷電后，應(yīng)急機(jī)組應(yīng)能快速自起動(dòng)并恢復(fù)供電 ，一級(jí)負(fù)荷的允許斷電時(shí)間從十幾秒至幾十秒 ，應(yīng)根據(jù)具體情況確定。 When the main power supply after power failure, the emergency crew from the start and should be able to quickly restore power, a load of ten seconds to allow power-off time from tens of seconds, should be based on concrete conditions. 當(dāng)重要工程的主用電源斷電后 ，首先應(yīng)以過3-5S的確定時(shí)間 ，以避開瞬時(shí)電壓降低及市電網(wǎng)合閘或備用電源自動(dòng)投入的時(shí)間，然后再發(fā)出起動(dòng)應(yīng)急發(fā)電機(jī)組的指令 。 When important works of the Lord with the power off, the first ever 3-5S should be a definite time, to avoid the instantaneous voltage drop and power grid or backup power supply auto closing time, and then issued instructions start the emergency generator . 從指令發(fā)出 、機(jī)組開始起動(dòng)、升速到能帶全負(fù)荷需要一段時(shí)間 。 From the command issued, the unit began to start, acceleration to full load can take some time. 一般大 、中型柴油機(jī)還需要預(yù)潤滑及暖機(jī)過程，使緊急加載時(shí)的機(jī)油機(jī)油壓力 、機(jī)油溫度 、冷卻水溫度符合廠品技術(shù)條件的規(guī)定；預(yù)潤滑及暖機(jī)過程可以根據(jù)不同情況預(yù)先進(jìn)行 。 Generally large and medium diesel engines need lubrication and warm pre-process, so that when the emergency load oil oil pressure, oil temperature, cooling water temperature, plant products meet the technical requirements of the regulations; pre-lubrication and warm-up process can be carried out according to different pre-conditions . 例如軍事通信 、大型賓館的重要外事活動(dòng)、公共建筑夜間進(jìn)行大型群眾活動(dòng) 、醫(yī)院進(jìn)行重要外科手術(shù)等的應(yīng)急機(jī)組平時(shí)就應(yīng)處于預(yù)潤滑及暖機(jī)狀態(tài) ，以便隨時(shí)快速起動(dòng)，盡量縮短故障斷電時(shí)間 。 Such as military communications, the important foreign affairs activities of large hotels, public buildings, large-scale mass activities at night, the hospital for major surgery and other peacetime emergency unit should be in pre-lubricated and warm state, in order to keep fast start, try to reduce the power failure time . </P>
<P>應(yīng)急機(jī)組投入進(jìn)行后 ，為了減少突加負(fù)荷時(shí)的機(jī)械及電流沖擊，在滿足供電要求的情況下 ，緊急負(fù)荷最好按時(shí)間間隔分級(jí)增加 。 Emergency unit inputs, in order to reduce the sudden mechanical load and the current impact, to meet the power requirements of the situation, the emergency load is best to increase the interval grading. 根據(jù)國家標(biāo)準(zhǔn)和國家軍用標(biāo)準(zhǔn)規(guī)定 ，自動(dòng)化機(jī)組自起動(dòng)成功后的首次允許加載量如下：對(duì)于標(biāo)定功率不大于250KW者 ，首次允許加載量不小于50％標(biāo)定負(fù)載 ；對(duì)于標(biāo)定功率大于250KW者，按廠品技術(shù)條件規(guī)定 。 According to national standards and national military standards, automation units for the first time since the start after the success of load capacity to allow the following: For those who rated power less than 250KW, the first time allow the amount of not less than 50％ of the load calibration load; for rated power greater than 250KW who, according to the provisions of plant products technological conditions. 如果瞬時(shí)電壓降及過渡過程要求不嚴(yán)格時(shí) ，一般機(jī)組突加或突卸的負(fù)荷量不宜超過機(jī)組標(biāo)定容量的70％。 If the instantaneous voltage drop and not strict requirements of the transition process, the general unit sudden load or unload the calibration unit volume should not exceed 70％. </P>
<P>四 、常用柴油發(fā)電機(jī)組的選擇 Fourth, the choice of commonly used diesel generator </P>
<P>某些柴油發(fā)電機(jī)組在某段時(shí)間或經(jīng)常需要長時(shí)間連續(xù)地進(jìn)行 ，以作為用電負(fù)荷的常用供電電源，這類發(fā)電機(jī)組稱為常用發(fā)電機(jī)組 。 Some of the diesel generator at a certain time or continuously for a long time often required to serve as a common power supply electrical load, such as generators used generators. 常用發(fā)電機(jī)組可作為常用機(jī)組與備用機(jī)組 。 Generators used as a common unit and standby unit. 遠(yuǎn)離大電網(wǎng)的鄉(xiāng)鎮(zhèn)、海島 、林場(chǎng) 、礦山、油田等地區(qū)或工礦企業(yè) ，為了供給當(dāng)?shù)鼐用裆鷱S及生活用電 ，需要安裝柴油發(fā)電機(jī)，這類發(fā)電機(jī)組平時(shí)應(yīng)不間斷地進(jìn)行 。 Away from the towns of large power grids, islands, forestry, mining, oil and other regions or industrial and mining enterprises, in order to supply local residents and students living power plant, you need to install diesel generators, these generators should be continuously carried out in peacetime. </P>
<P>國防工程 、通信樞紐、廣播電臺(tái) 、微波接力站等重要設(shè)施 ，應(yīng)設(shè)有備用柴油發(fā)電機(jī)組。 Defense engineering, communications hub, radio, microwave relay stations and other important facilities, should have backup diesel generators. 這類設(shè)施用電平時(shí)可由市電電力網(wǎng)供給 。 Usually these facilities can be mains electricity supply grid. 但是 ，由于地震、臺(tái)風(fēng) 、戰(zhàn)爭等其他自然災(zāi)害或人為因素 ，使市電網(wǎng)遭受破壞而停電以后，已設(shè)置的備用機(jī)組應(yīng)迅速起動(dòng) ，并堅(jiān)持長期不間斷地進(jìn)行 ，以保證對(duì)這些重要工程用電負(fù)荷的連續(xù)供電，這種備用發(fā)電機(jī)組也屬于常用發(fā)電機(jī)組類型 。 However, due to earthquakes, typhoons, war and other natural disasters or man-made factors, the city power grid and power destroyed after the backup unit has been set up to be quick start, and adhere to long-term continuous manner to ensure these important works Yongdian load continuous power supply, standby generators that belong to the type commonly used in generator sets. 常用發(fā)電機(jī)組持續(xù)工作時(shí)間長 ，負(fù)荷曲線變化較大，機(jī)組容量 、臺(tái)數(shù) 、型式的選擇及機(jī)組的進(jìn)行控制方式與應(yīng)急機(jī)組不同。 Common units continued to work long hours, the load curve larger capacity of the units, the number of units, type of selection and control units and emergency units in different ways. </P>
<P>1. 常用柴油發(fā)電機(jī)組容量的確定 1. Used to determine the capacity of diesel generator sets </P>
<P>按機(jī)組長期持續(xù)運(yùn)行輸出功率能滿足全工程最大計(jì)算負(fù)荷選擇，并應(yīng)根據(jù)負(fù)荷的重要性確定發(fā)電機(jī)組備用機(jī)組容量 。 Long-term continuous operation by the output power unit to meet the maximum calculated load-wide selection, and should be determined according to the importance of load capacity of generator spare unit. 柴油機(jī)持續(xù)進(jìn)行的輸出功率 ，一般為標(biāo)定功率的0.9倍。 Continuous power output of diesel engines, usually 0.9 times the rated power. </P>
<P>2. 常用柴油發(fā)電機(jī)組臺(tái)數(shù)的確定 2. Used diesel generator sets to determine the number of </P>
<P>常用柴油發(fā)電機(jī)組臺(tái)數(shù)的設(shè)置通常為2臺(tái)以上 ，以保證供電的連續(xù)性及適應(yīng)用電負(fù)荷曲線的變化 。 Number of units used diesel generator set is usually more than 2 units in order to ensure continuity of supply and meet the electricity load curves. 機(jī)組臺(tái)數(shù)多，才可以根據(jù)用電負(fù)荷的變化確定投入發(fā)電機(jī)組的進(jìn)行臺(tái)數(shù) ，使柴油機(jī)經(jīng)常是在經(jīng)濟(jì)負(fù)荷下運(yùn)行 ， 以減少燃油消耗率，降低發(fā)電成本 。 Number of units and more units can only be determined according to changes in electricity load of the units into the number of generating units, the engine is often running in the economic load to reduce fuel consumption, reduce electricity costs. 柴油機(jī)的最佳經(jīng)濟(jì)運(yùn)行狀態(tài)是在標(biāo)定功率的75％-90％之間 。 The best economic engine running at rated power between 75％ -90％. 為保證供電的連續(xù)性，常用機(jī)組本身應(yīng)考慮設(shè)置備用機(jī)組 ，當(dāng)進(jìn)行機(jī)組故障檢修或停機(jī)檢查時(shí) ，使發(fā)電機(jī)組仍然能夠滿足對(duì)重要用電負(fù)荷不間斷地持續(xù)供電。 To ensure continuity of supply, common unit itself should consider setting up standby unit when the unit or down to check when troubleshooting, the generator is still important to meet the electricity load for continuous uninterrupted power supply. </P>
<P>3. 常用柴油發(fā)電機(jī)組轉(zhuǎn)速的確定 3. Used to determine speed diesel generating sets </P>
<P>為了減少磨損 ，增加機(jī)組的使用壽命 ，常用發(fā)電機(jī)組宜選用標(biāo)定轉(zhuǎn)速不大于1000r/min的中、低速機(jī)組 ， 其備用機(jī)組可選擇中 、高速機(jī)組。 In order to reduce wear and increase the service life of units, common units should use the rated speed of not more than 1000r/min, the low-speed unit, the standby unit can choose the high-speed unit. 同一電站的機(jī)組應(yīng)選用同型號(hào) 、同容量的機(jī)組 ，以便使用相同的備用零部件，方便維修與管理 。 The unit should use the same power the same model, with the capacity of the unit, in order to use the same spare parts, easy maintenance and management. 負(fù)荷變化大的工程 ，也可以選用同系列不同容量的機(jī)組。 Load variation in the project, you can also use the same series in different capacity units. 發(fā)電機(jī)輸出標(biāo)定電壓的確定與應(yīng)急發(fā)電機(jī)組相同 ，一般為400V ，個(gè)別用電量大，輸電距離遠(yuǎn)的工程可選用高壓發(fā)電機(jī)組 。 Calibration voltage generator output and the emergency generator to determine the same, usually 400V, individual power capacity, transmission distance can be used high-pressure engineering units. </P>
<P>4. 常用柴油發(fā)電機(jī)組的控制 4. Common control of diesel generating sets </P>
<P>常用機(jī)組一般應(yīng)考慮能夠并聯(lián)進(jìn)行 ，以簡化配電主接線，使機(jī)組起動(dòng) 、停機(jī)輪換運(yùn)行時(shí) ，通過并車、轉(zhuǎn)移負(fù)荷 、切換機(jī)組而不致中斷供電 。 Common units should generally be considered to be in parallel to simplify the distribution main connection, and the unit start, stop rotation of running through and car, transfer the load, switching power supply unit without interruption. 機(jī)組應(yīng)安裝有機(jī)組的測(cè)量及控制裝置 ，機(jī)組的調(diào)速及勵(lì)磁調(diào)節(jié)裝置應(yīng)適用魚并聯(lián)進(jìn)行的要求。 Unit of measurement units should be installed and the control devices, speed control and excitation control unit device should be applied in parallel to the requirements of the fish. 對(duì)重要負(fù)荷供電的備用發(fā)電機(jī)組 ，宜選用自動(dòng)化柴油發(fā)電機(jī)組當(dāng)外電源故障斷電后 ，能夠迅速自動(dòng)起動(dòng)，恢復(fù)對(duì)重要負(fù)荷的供電 。 Significant load on the generator set standby power supply, automatic diesel generator sets should be selected when the external power failure after power failure, can quickly start automatically and restore power supply to important loads. 柴油機(jī)運(yùn)行時(shí)機(jī)房噪聲很大，自動(dòng)化機(jī)組便于改造為隔室操作 、自動(dòng)監(jiān)控的發(fā)電機(jī)組 。 Noisy engine room operation, automation unit compartment to facilitate transformation of operation, automatic monitoring of the generating units. 當(dāng)發(fā)電機(jī)組正常進(jìn)行時(shí)，操作人員不必進(jìn)入柴油機(jī)房 ，在控制室便可對(duì)柴油發(fā)電機(jī)組進(jìn)行監(jiān)控 。 When the generator during normal operation does not have to enter the engine room, in the control room can monitor the diesel generator. </P>
<P>五、柴油發(fā)電機(jī)組的訂貨要求 Fifth, the order requires diesel generator </P>
<P>在作好上述各項(xiàng)選擇后 、柴油發(fā)電機(jī)組的訂貨一般應(yīng)標(biāo)明以下內(nèi)容： In the well of the above options, the diesel generator set shall be marked with the following general order: <BR>（1） 機(jī)組的型號(hào) 、額定功率、額定頻率 、額定電壓 、額定電流、相數(shù) 、功率因素和接線方式等 。 (1) unit of the type, rated power, rated frequency, rated voltage, rated current, phase, power factor and connection methods. <BR>（2） 對(duì)機(jī)組自動(dòng)化功能和性能的要求。 (2) on the unit automation and performance requirements. <BR>（3） 對(duì)柴油機(jī) ，發(fā)電機(jī)和控制屏的結(jié)構(gòu) 、性能、安裝尺寸的要求 。 (3) of the diesel engine, generator and control panel of the structure, performance, installation size requirements. <BR>（4） 對(duì)機(jī)組的并聯(lián)運(yùn)行要求：同時(shí)購買多臺(tái)機(jī)組 ，是否要求并聯(lián)進(jìn)行，如需要并聯(lián)進(jìn)行 ，還應(yīng)提出是否需要提供并行所需的測(cè)量儀器和裝置 。 (4) The parallel operation of the unit requirements: purchase more units, is required in parallel to, if necessary, in parallel to, but also suggest the need to provide the necessary parallel measuring instruments and devices. <BR>（5） 對(duì)機(jī)組的附屬設(shè)備要求：國內(nèi)許多廠商把冷卻水箱（散熱器）、燃油箱 、排氣消聲器 、蓄電池等也算作附屬設(shè)備，訂貨時(shí)容許提出安裝的有些要求 。 (5), a subsidiary of the unit equipment requirements: Domestic many manufacturers cooling water tank (radiator), fuel tank, exhaust muffler, batteries and other ancillary equipment are also counted when ordering to allow installation of some proposed requirements. </P>
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