主发电机试验报告

Technical data 技术参数

Diesel engine:

ANQING DAIHATSU

柴油机

Model :型号6DK20

Cylinder: 缸数 6

Cylinder bore*Piston

200mm*300mm

stroke 缸径*冲程

770kW

Output rated:

额定功率

Revolution 转速720 rpm

110% 1h(each 12h)

Overload capacity

超速能力

Generator:

Siemens Technique(China maker) 发电机

Type: 型号1FC6-564-3SA

900kV A

Generetor capacity

电机容量

720kw

Generator rated output

电机额定功率

0.8

Power factor

功率因素

AC450V 3-phase 60Hz

Voltage Phase Freq

电压相位频率

F class/IP23

Insulation/Protection

class

绝缘/保护等级

AC220V 1-phase 60Hz, 500w

Anti-condensation heater

空间加热器

Cooling method

Self ventilation air cooling type

冷却方式

GENERAL 概述

1.the test of the D/G and MSB should be done before self-checking and eliminate all trouble, and then NK and

owner can inspect the test.

2.the test only can do at the NK and OWNER on locale.

3.the shipyard must provide the NK’ certificate and manufacturer’s certificate.

4.during taeting, the shipyard’s QC must record the test dates, and after testing, the test date should be confirmed by

the NK and OWNER, and sign on the record table.

INSPECTIONS AND CHECKS BEFORE ENGINE STARTUP机器起动前的检查一、check the G/E-self. 发电机组本身的检查

Preparation for operation

1.Inspection of crankcase and cylinder liner, and supply of lub.oil

a)Inspection of the inside of crankcase

Open the side cover of the engine frame, and check and ensure that sundries are not left behind, and that there is no rusting on the cylinder liners, crankshaft, and so on.

b)Supplying lubricating oil to cylinder liner

Conduct turning to allow the pistons to move upward, and apply lubricating oil on the lower part of the cylinder liners by a spray device and the like.

Sequentially conduct the above procedure to each cylinder.

c) Supplying lub.oil to governor.

2.Inspection of connections and joints

Inspect again the external connections or joints to confirm that there is no connections that has been forgotten to be tightened, or loosened joints.

3.Inspection, lubrication, and operation check around the fuel regulation systen

Manually lubricate the bearing and sliding parts of pins, after checking for any loose or missing levers, link pins, and bolts around the governor, common rod, stoppage system, and fuel injection pump rack.

Set the operation lever to “STOP” position and confirm that the rack scale is “O”, and then alternately move the lever to “STOP” and “RUN” positions, to confirm that the common rod and pump rack moves smoothly.

4.Open the drain cock of the intake air inlet duct, and drain the condensed water out.

5.Opening and closeing of valves

Repeat “Fully open” and “Fully close” operation of the valves on the piping system to confirm that the valves move smoothly, and then set the valves to “RUN” position.

6.priming with lubricating oil and exhausting air

conduct priming with lubricating oil and exhausting air on the following procedure:

a)operate the lubricating oil priming pump for about 5 minutes, and during this period conduct turning 2 to 3

times, by opening the indicator valve, so that it can be confirmed that no fuel oil, lubricating oil, and water do not flow out of the indicator valve.

b)At the same time, open the each cover and check the dripping-down conditions of lubricating oil from each

part.

i.Engine frame: main bearing, crank pin, piston(cooler case), and piston pin

ii.Cam case: cam bearing, swing arm, and tappet

iii.Cylinder head: rocker arm and valve retaining tee

c)operate the priming pump, open the air vent valve for lubricating oil filter, and drain lubricating oil until air

bubbles in the oil are completely vanished.

d)Check that there is no oil leakage from various parts of the piping during priming.

7.priming with fuel oil and exhausting air

conduct priming with fuel oil and exhausting air bubbles on the following procedure:

a)operate the fuel oil feed pump (in case of the engine equipped with a motor-drive oil feed pump).

b)Open the fuel oil inlet valve, after confirming that the operation lever is set to “STOP” position.

c)Open the air vent valve of filter, and drain oil until air bubbles in oil are completely vanished.

d)Open the air vent valve of the fuel injection pump, and drain oil until air bubbles in oil are completely

vanished.

e)After completely removing air bubbles, securely tighten the air vent plug.

8. Measure the crankshaft deflection of diesel engine in cool condition.

二、check the peripherally pipe system. 外围系统检查

1. Fuel circuit 燃油管路

* M.D.O Service tank M.D.O日用油舱

* MDO booster unit 供油单元

* Return oil 回油

* Leakage oil and drip oil pipe泄漏和泄放油管

2. Cooling circuit: 冷却水管路

* Cooling water pipes、expansion tank、degassing –air pipes、pre-heating unit/pipes

冷却水管、膨胀水箱、除气管、预加热单元及管路

* Jacket F.W. cooler、LT cooling pump.

缸套水冷却器、冷却水泵

* Pipe system flushing and chemical corrosion inhibitors.

管路清洗和投药

3. Air injection and contral circuit 空气启动及控制系统

* Main starting air compressor、AE starting air reservoir、contral air reservoir

主空压机、辅机启动空气瓶、控制空气瓶

4. Exhaust circuit: 排气系统

*Pipe support、heat insulation、attachments

排气管支架、隔热、附件

5. Electrical circuit: 电气系统

* The following items should be checked:

Visual inspection of generator & MSB,

Stability of earthing,

Exactness of connection.

检查发电机和主配电板的外观,接地的牢固性,接线的正确性。

* The instrument of MSB should be proofread.主配电板指示仪表应经过标准仪表校对。

* Generator & MSB insulation cool resistance test.

测量主发电机和主配电板的冷态绝缘电阻.

* All of switches should be disconnected before measure main switchboard

insulation resistance, with 500V high resistance megger.

主配电板绝缘电阻测量应在各分路开关断开状况下测定,使用500V兆欧表

Machinery test procedure for diesel generator sets.柴油发电机组的机械试验程序1. Test of alarm and safety protection devices.

2. Starting test 起动试验

（1）The air receiver is air-Charged up to 30bar, one diesel generator set in cold condition to run continuously and air is not filled during the test until the diesel generator can not be started. To record numbers of start not be started. To record numbers of start (should not be less those 6 times）and lowest air pressure. The air receiver is air-charged up to 30bar again, only 3 time for starting each generator limited by the automatic function of switchboard. Alarm will be actuated after the failure of start for the 3rd time, then try to start other generators.

空气瓶充气至30bar，当起动试验时空气瓶不充气，一台柴油发电机组在冷态下起动连续起动，直至不能起动为止，记录至不能起动的次数，记录起动次数（不少于6次）和最低空气压力。空气瓶再次冲气至30bar, 配电板自动功能对每台发电机起动次数3次，第3次起动不成功报警，并将转向起动另一台。

对每台发电机进行机旁及遥控启动的功能试验。

4.柴油发电机负荷试验

Diesel Generator sets load test.

Load test should be carried out in accordance with following table, load will be water resistor and cosΦwill be 1, Under rated voltage & revolution.

在额定电压和转速下,负荷试验应按下表进行,采用水电阻器作负荷,cosΦ=1.

Machinery part:

机械部分

4.1. 停机测量各相绕组.

Shutting off sets and measure the temperature of Generator windings in accordance with following table.

4.2 热态绝缘电阻Hot state insulation resistance test.(All load switch of MSB should be off)

5. 发电机静态电压特性试验. Diesel-Generator set test of steady voltage performance.

In rating condition, please change the load with the steps 75%-50%-25%-0%-25%-50%-75%-100%, record the voltage and the current at stability condition, the difference of the voltage less than ±2.5%.

在额定工况下（额定负载、额定电流、额定电压、额定频率）COSφ＝1的情况下，把电流从额定值（100％）按75％－50％－25％－0，再从0－25％－50％－75％－100％变化，记录在稳定下的电压和电流，电压的变化应不超过±2.5％（±11.25）

6. 柴油发电机组的调速试验（动态电压特性的测定）governor test

When subtracting the 100%Pn, add 50% Pn and then add 50% Pn, measuring the frequency, the voltage and the recovery time, the frequency dif ference transient is less than +/- 10%, the frequency stabilized is less than +/-5%, and the recovery time is less than 5 seconds.

当发电机突卸100%负荷，突加50%负荷和再突加50%负荷时，测量其频率电压和恢复时间，其瞬间频率差不小于+/-10%，其稳态频率差不小于+/-5%和恢复时间不超过5秒

7. 发电机并联运行试验the parallel test

The parallel generators should be running in stability condition, during the load change at the rang of 20%-100%Pn, the different load between parallel generators are less than 15%Pn. the parallel test should be done between no.1/no2,no.2/no.3,no.3/no.1.

并联运行的交流发电机组均能稳定运行，当负载在总额定负载的20％－100％范围内变化时，其负载的分配应不超过任一台发电机的功率负载与其总负载按机组额定功率的比例分配值之差，且不超过发电机组额定功率的15％

发电机并联运行的组别为：

1#发电机组与2#发电机组并联

1#发电机组与3#发电机组并联

2#发电机组与3#发电机组并联。

8. 逆功率继电器脱扣试验reverser power test

The reverser power relay can correct operate that breaking the ACB, the reverser power relay is setting at 10%Pn, delay 10 seconds

逆功率继电器正确地延时动作，使ACB空气开关断开。逆功率设定为额定功率的10%（72KW），时间小于10S。

9. 过电流继电器长延时脱扣试验over current test

The over current value setting is Io=1.2*1.1*In=1524.6A delay 20s

电流设定值为：

I0=IR*120% IR=IN*1.1

I0=IN*1.1*120%=1524.6A

延时20S（+/-2S），主开关ACB脱扣。

10. 优先脱扣试验preference trip

When the current reached the rating current (1155A), delay 10s, the following consumer automatic trip:

Air condition,

4P (440V workshop equipments),

7P(440V galley equipments),

11P(440V laundry room equipments)

当发电机电流达到额定电流1155A，延时10S下列负载自动脱扣

1. 空调装置

2. 4P 440V机修间设备电力分电箱

3. 7P 440V厨房设备电力分电箱

4. 11P 440V洗衣间设备电力分电箱

11. 程序起动系统试验automatic start consumers test

After blackout, the power comeback, the following consumer should be automatic start step by step.

The NO.1 step 5 seconds

No.1 main lub pump or No.2 main lub pump

The NO.2 step 10 seconds

No.1 main jacket cooling water pump or No.2 main jacket cooling water pump

No.1 low temp cooling water pump or No.2 low temp cooling water pump

No.1 sea water cooling pump or No.2 sea water cooling pump

The NO.4 step 15 seconds

No.1 engine room fan

No.2 engine room fan

No.3 engine room fan

No.4 engine room fan

全船失电后，当主电源重新恢复时，验证下列设备按程序起动。

第一级5S

NO.1 主滑油泵75KW或NO.2 主滑油泵75KW

第二级10S

NO.1 主机缸套冷却淡水泵18.5KW或NO.2 主机缸套冷却淡水泵18.5KW

NO.1 低温冷却淡水泵90KW或NO.2 低温冷却淡水泵90KW

NO.1 冷却海水泵65KW或NO.2 冷却海水泵65KW

第三级15S

NO.1 机舱风机21.3KW

NO.2 机舱风机21.3KW

NO.3 机舱风机21.3KW

NO.4 机舱风机21.3KW

12. 联锁功能试验interlock test

The generator ACB and the shore MCB must be interlocked

The generator space heater breaker and the generator ACB must be interlocked

发电机主空气断路器（ACB）与岸电开关MCB联锁。

发电机空间加热器与发电机主空气断路器ACB联锁。

13. 负载转移试验the generator load manual shift test

Please decrease and increase the generator’s speed by hand that the load should be shifted.

手动转移

14. 自动电站试验the power management test

14.1 manual and remote start/stop test发电机手动遥控起动和停止试验

Please operate the start/stop push button that on the local control panel and main switch board, the generator should be started/stopped. 通过操作机旁就地控制箱和主配电板上的起停开关来完成柴油发电机组起/停试验。

14.2 The protection and automatic start test报警保护及自起动试验

During the following condition, the standby generator automatic start and ACB close.

在下列情况下，备用发电机自起动、合闸、供电。

14.2.1 The generator single running, the next generator standby在一台发电机单机运行情况下，；另一台发电机

处于备用状态

14.2.1.1 The bus bar voltage high

Over 105%Un, delay 5 seconds alarm and trip, the standby generator start and ACB ON

汇流排电压高105%（472.5V）以上延时5S报警、脱扣，备用机组起动并合闸。

14.2.1.2 The bus bar voltage low

Below 90%Un, delay 5 seconds alarm and trip, the standby generator start and ACB ON

汇流排电压低90%（405V）以下延时5S报警、脱扣，备用机组起动并合闸。

14.2.1.3 The bus bar frequency low

Below 95%Fn, delay 5 seconds alarm and trip, the standby generator start and ACB ON

频率低95%（57HZ）以下5S脱扣，备用机组起动并合闸。

14.2.1.4 The bus bar frequency high

Over 105%Fn, delay 5 seconds alarm and trip, the standby generator start and ACB ON

频率高105%（63HZ）以上5S脱扣，备用机组起动并合闸

14.2.1.5 The bus power losing

The standby generator start and ACB ON

汇流排失压，备用机组起动并合闸。

14.2.1.6 The MSB common alarm

The ACB trip and the generator shut down

公共报警，脱扣并紧急停车

14.2.1.7 The generator start failure

When the generator start fait, the start failure will coming.

起动故障，报警。