50t天车设计计算书

1、Delegates,staff: Hell o! inthe r un-uptot he Spri ng Festival,we held one session offourstaffrepresentativesConference2013 -workshop,full back i n2012,careful analy sis ofthecurr ent sit uation,discuss2013 development plans.Here,onbehalf of my company2013w ork reports tothe Ge neralAssembly,for cons

2、i deration.PillarI, 2012ba ckin 2012, XX pow er companie sadheretothe party's 17great spiritfor guidance, comprehe nsivelyimpleme ntthe scie ntificconcept ofdevel opment, prom oting cost-lea dership strategy, standards,focuson impl ementation, lea nmanagem ent, continuously impr ove,sm ooth pres

3、ent safety situati on ofenterpri se manageme nt, busi ness ma nagementa nd contr olscientific a nd standardize d,and thede dicati on ofstaff,managea harmoni ousand dem ocraticatmosphereofthe good situation.Mai nindicat orsare asfoll ows:-t he battery i ndicat or: powerge nerationtotaled7.815billionk

4、 Wh,bey ondthe a nnualbudget impl ementation ca pacity of315million k Wh, an increase of757mil lion kWh.Salestotaled 7.425 billion k Wh,exceedi ng sale s of330 million kWhtheannual Exe cutive budget,ani ncrea se of729 million k Wh.-S ecurity measures: unplanned outages2.5times.No personali njury a c

5、ci dent occurre d, no majoraccide ntand above,nomajor fireacci dent swithoute nvironmental polluti on accide nts,safetyforthre econsecutiveyearsto mai ntain sta bilityto g ood posture.Busi nessfi nancialindicat ors:total profits of255milli onYuan, beyond t hea nnualbudget of207million Yuan,beyondt h

6、eData ng companyindex41.89 millionYuan,a n increase of1.76mil lion Yua n,FCM a ssessment atgrade four.-Energy: power supply standard coal compl eting312.25 g/k Wh, down 0.1 g /kWh;integrate dauxiliary powerconsumpti on ratio in 5.12%, dow n 0.26%; pollutantemis sions performancegrea tly reduce d com

7、pare dto lastyea r, carbon 0.09 g /kWh,sulfur dioxide 0.104 g /kWhNOx0.512 g/kWh; dust removaefficiency of more t han 99.8%.-Relia bilityindex: equivale nt availabilityfact orin 93.47%,increase d 7.95% from ayearearlier.Equivalentforced outage rate 0.08%,0.16%re ductionoverthe same peri oda yearearl

8、i er.Majorachievement s: first,we shoul da dheretot hetwo "manage mentsystem" basis, stre ngthe ningtechnologi calresear ch, strengthe nhi dden ha zards controlandintrinsic safety Enterprise construction took newste ps. -The tw o "managementsystem" for improvement. Focus onpr omo

9、tingthe powerofthecompa ny managementsystem a ndtheapplicati ona nd implementati on ofthe safety loop five-starmanagementsystem,improvethesafety management system,realize thesystem ofsafetycontrol.Further regulatesecurityroutine s,safetysupervisi on a ndmanag ement netw orkrole to playtoachieve clos

10、ed -loop. Stre ngtheningthe supervisi on a nd management of ha bitualvi olationof, strengthening t he safety supervisi on ofoutsourci ngcontract ors.Carried out inspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand

11、 theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论50/10t × 28.5m A5 桥式起重机主要参数一 . 速度V主起升=6.18m/minV副起升 =13.14m/minV 小车 =38.2m/minV大车 =58.8m/min二 . 起升高度H=13mspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupe

12、rvision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论一 . 主 起升机构1. 电动机的选择 按静功率初选电机Nj=QtV/6120Qt=( 50000+365) =50365kgNj=( 50365× 6.18) /( 6120× 0.97)=52.5kw查电动机样本，按S3Fc=25%选取。YZR280S-8功率Ne=52kwFc25% 根据 GB/T3811-83，对电动机进行过载校验PnH/( m

13、· M)·(PQ· Vq/1000 )spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论其中Pn=45kwPQ=50467× 9.8=4.95 × 105NVQ

14、=6.18/60=0.103m/s =0.92 M=2.85H=2.1m=1则H/( m· M)·(PQ· Vq/1000 )= 2.1/( 1× 2.85)· 4.95× 105× 0.103/( 1000× 0.92)=40.8kwPn=45kw 40.8kw电动机过载校验通过 根据GB/T3811-83，对电动机进行发热验算 电 动机的稳态平均功率：PS=G· ( Vq· PQ) /( 1000 · m· )参考GB/T3811 附件 W 确定主起升机构的系数G 的类别

15、为G2即 G=0.8 CZ值为150则 PS=0.8×(0.103× 4.95× 105) /( 1000× 0.92× 2)=22.1kw 根 据 GB/T3811 附录V 可知spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号

16、2009-024规格型号QD50/10-28.5A5合同号计算内容结论当 Jc25% CZ=150时 YZR280S-8电动机的输出功率P=48kw因此P PS=48kw由以上可知，电动机的发热验算通过2. 减速机的选择根据Jo/T8905.2-1999 附录B选用ZQ850减速机，i=48.57 其允许输入功率P=48kwP M5 P但 PM5仅比P 超过： ( 52.5-48 ) /48×100%=8.3%在工程设计中允许。因此选用ZQ850减速机是合适的。制动器的选择M Z n· Mjspring a nda utumn ofsecurity inspecti ons

17、,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机2009024规格型号QD50/10-28.5A5合同号计算内容结论根据 GB/T3811规定，制动安全系数为1.5 倍。静载力矩：Mj=9550× 52.5/715=701N · m则 nMj =1.5× 701=1052N· m选用制动器YWZ4-500/121推动器Ed121

18、/6其额定制动力矩MZ=2500N· mMZ=2500 nMj =1052N· m因此选用YWZ4-500/121 制动器是合适的。钢丝绳的选择 钢丝绳拉力S=Qq/( m· a· 1)其中起升载荷Qq=4.95 × 105N绳系数目m=2滑轮倍率a=5滑轮组效率 1=0.98则 S=4.95 × 105/( 2× 5× 0.98) =50510N 钢丝绳的最小安全系数n=5 则钢丝绳的破断拉力应满足：spring a nda utumn ofsecurity inspecti ons,floodcontrol a

19、 nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论S P n · s=5 × 50510=253KN 选用钢丝绳6 × 19W系列6W(19)-24-170I其破断拉力SP=273KNSP=273 ns=253KN因此选择此钢丝绳是合适的。二 . 副 起升机构1. 电动机的选择 按 静功率初选

20、电动机Nj=QqV/6120Qq=( 10000+214) =10214kgNj=( 10214× 13.14) /( 6120× 0.92)=22.6kw查电动机样本，按S3Fc=25%选取。则为 YZR225M-8功率Ne=26kwFc25% 过 载校验PnH/( m· M)·(PQ· Vq/1000· )其中Pn=22kwspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysu

21、pervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论PQ=10214× 9.8=1 × 105NVQ=13.14/60=0.219m/s =0.92 M=3.17H=2.1m=1则H/( m· M)·(PQ· Vq/1000 · )= 2.1/( 1× 3.17)· 1× 105× 0.219/( 1000 ×

22、0.92)=14.8kwPn=22kw 14.8kw电动机过载校验通过 发 热验算 电 动机的稳态平均功率PSPS=G· ( Vq· PQ) /( 1000 · m· )其中稳态负载系数G 取为G2 级别，则G=0.8 根据GB/T3811-83 附录W：则 CZ 值为150则 PS=0.8×(0.219× 1× 105) /( 1000× 1× 0.92)=18kw 根 据 GB/T3811-83 附录V 可知：当 Jc25% CZ=150时 YZR225M-8电动机的输出功率24.1kwspring

23、a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论因此P=24.1kw PS=18kw电动机的发热校验通过。2. 减速机的选择根据起升速度及卷筒直径 400可推知减速机速比即 13.14= ( 715/i )×&#

24、215; 0.4135/3则 i=23.34副起升机构工作级别M5，根据JB/T8905.2-1999, 减速机的允许输入功率。P M5=24.5kw选用ZQ500减速机，速比23.34其允许输入功率P=24.5kwP M5 P 但 PM5仅超过P ( 26-24.5 ) /24.5 ×100%=6.1%在工程设计中是允许的。因此选用ZQ500减速机是合适的。3. 制动器的选择MZ n · Mjspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction

25、 mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论根据GB/T3811 的规定，副起升工作级别M5，制动器安全系数n 取为1.5静载力矩：Mj=9550× 26/715=320 N· m则 nMj =1. 5 × 320=480 N· m选用制动器YWZ4-300/50推动器Ed50/6其额定制动力矩MZ=630N· mMZ=630 nMj

26、 =480N· m因此选用YWZ4-300/50 制动器是合适的。4. 钢丝绳的选择钢丝绳拉力S=Q q/ ( m· a· 1)其中Qq=1 × 105Nm=2a=3 1=0.98则 S=1 × 105/( 2× 3× 0.98) =17006N钢丝绳的最小安全系数n=5( 3)钢丝绳的破断拉力应满足SP n· s=5× 17006=85KNspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr

27、oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论 选 用钢丝绳型号6W（19）-13.5-170I其破断拉力SP=104KNSP=104KN ns=85KN因此选择的钢丝绳型号是最合适的。三 . 大 小车运行机构1. 运行阻力的计算 摩擦阻力Pmmax=（ Qq+G） · （ 2H+df） · （ Kf） /DQq=50000kgG=11000kg（小

28、车）53000kg （大车）=0.06（小车）0.1 （大车）f=0.02d=12cm （小车）15cm（大车）D=50cm （小车）80cm（大车）则小车摩擦阻力P mmax=（ 50000+11000） × （ 2× 0.06+12× 0.02） × 1.5/50=723kg大车摩擦阻力P mmax=（ 50000+53000） × （ 2× 0.1+15× 0.02） × 1.5/80spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i

29、nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论=977kg 坡度阻力P P=( Qq+G)×KP大车KP=0.001小车KP=0.002则小车坡度阻力PP=0.002×(50467+11000) =169kg大车坡度阻力PP=0.001 ×(50467+53000) =125kg2. 电动机的选择 静

30、功率Nj=Pj · V/( 6120 · · m)小车运行机构Nj=(723+169)×38/(6120×0.96 ×1)=5.7kw大车运行机构Nj=(977+125)×58/(6120×0.96 ×2)=5.4kw 考虑起动加速时惯性力，应选电动机功率N=Kg· NjKg为惯性力影响系数小车运行机构N=1.1× 5.7=6.27spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safe

31、typr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论大车运行机构N=1.2× 4.2=6.48kw根据以上计算选择小车运行电动机为YZR160M1-6其Ne=6.3kw Fc25%选择大车运行电动机为YZR160M2-6其 Ne=8.5kw Fc25% 过载校验Pn1/m as PG（W+M c）+PW ×VY（/1000· ） + G

32、D2·n2/·ta其中m=1（小车）m=2（大车） as=1.7PG =（ 50467+11000 ）×9.8=5.2 × 105N（小车）PG =（ 50467+53000 ）×9.8=1.01 × 106N（大车）W=0.006VY=38/60=0.633m/s （小车）0.8m/s（大车） GD2=1.2×（0.45+0.15 ） =0.68kg ·（小车） GD2=2× 1.2× 2.15=5.28kg ·（大车）ta=5s（小车）6s（大车）产品设计计算书spring a n

33、da utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论则小车运行机构1/（ 1× 1.7 ）× 5.2 × 105×（0.006+0） +0× 0.633/（ 1000× 0.96） +0

34、.68× 9302/（×5） =1.76kw大车运行机构1/（ 2× 1.7）× 1.01 × 106×（0.006+0） +0 × 0.8/（ 1000× 0.96） +5.28× 9302/（×6） =2.25kwPn=5.5kw 1.76kw （小车）Pn=7.5kw 2.25kw （大车）大、小车运行机构电动机过载校验通过 发热验算 稳态平均功率PS=GPG （ w+mi） +Pwi × VY/（ 1000· m· ）其中G根据GB/T3811附录W 取为级

35、别G2（小车）G3（大车）则 G=0.8（小车）G=0.8 （大车）CZ=150（小车）CZ=150 （大车）则小车运行时间PS=0.85.2 × 105×（0.006+0） +0× 0.633/ （ 1000产品设计计算书spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品名称通用桥式起重

36、机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论× 1× 0.96） =1.78kw大车运行时间PS=0.81.01 × 106×（0.006+0） +0 × 0.8/ （ 1000× 2×0.96） =2.43kw 查 GB/T3811 附录 V可知：YZR160M1-6 电动机的允许输出功率：Fc25% CZ=150 时 P=5.83kw （小车）YZR160M2-6 电动机的允许输出功率Fc25% CZ=150 时 P=7.84kw （大车）由以上计算P S=1.78 P=5.83kw

37、（小车）P S=2.43 P=7.84kw （大车）大、小车运行机构的电动机发热验算通过。3. 减速机的选择根据运行速度可推知减速机速比小车V= Dn/i38.15= × 0.5 × 930/i i=37.9大车V= Dn/i58.78= × 0.8 × 930/i i=40.17产品设计计算书spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafe

38、tyand theOlympic Games andother产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论根据以上计算结果选择小车运行机构减速机为ZSC600 i=37.9其允许输入功率P=14kw（ 25%）则 PM5=8.62kw P=14kw小车运行减速机合适。选择大车运行机构减速机为ZQ500i=40.17其允许输入功率P=12.7kw （ Fc25%）则 PM5=8kw P=12.7kw大车运行减速机合适。4. 制动器的选择制动器所需要的总制动力矩：MZ=1/t Z（1.2 ×GD2·n·m）/37

39、5+0.975 ×（Qq+G）×V2· /n小车运行机构：MZ=1/5 1.2 ×0.68 ×930 ×1/375+0.975×（ 50467+11000 ）×0.633 2× 0.96/930 =6.3kg · m=62N · m产品设计计算书spring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of prod

40、uctionsafetyand theOlympic Games andother产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论故选择制动器YWZ-200/25 M e=200N· m合适大车运行时间MZ =1/6 1.2 ×5.46 ×930 ×2/375+0.975×( 50467+53000 )×0.82× 0.96/930 =17.2kg · m=170N · m故选择制动器YWZ-200/25 M e=200N· m合适四 . 主

41、梁1. 受力分析根据GB/T3811 按第种载荷组合进行计算主梁所受的载荷主要有自重载荷，起升载荷和水平载荷 小车自重为5GXC=11000× 9.8=1.05 × 105N 半桥架自重为1/2Gqi =15000× 9.8=1.27 × 105N 起升载荷为Qq=50000× 9.8=4.9 × 105N 半桥架惯性载荷41/2PHQJ=0.15 × 15000× 9.8=2.21 × 104N产品设计计算书Delegates,staff: Hell o! inthe r un-uptot he Spr

42、i ng Festival,we held one session offourstaffrepresentativesConference2013 -workshop,full back i n2012,careful analy sis ofthecurr ent sit uation,discuss2013 development plans.Here,onbehalf of my company2013w ork reports tothe Ge neralAssembly,for consi deration.PillarI, 2012ba ckin 2012, XX pow er

43、companie sadheretothe party's 17great spiritfor guidance, comprehe nsivelyimpleme ntthe scie ntificconcept ofdevel opment, prom oting cost-lea dership strategy, standards,focuson impl ementation, lea nmanagem ent, continuously impr ove,sm ooth present safety situati on ofenterpri se manageme nt,

44、 busi ness ma nagementa nd contr olscientific a nd standardize d,and thede dicati on ofstaff,managea harmoni ousand dem ocraticatmosphereofthe good situation.Mai nindicat orsare asfoll ows:-t he battery i ndicat or: powerge nerationtotaled7.815billionk Wh,bey ondthe a nnualbudget impl ementation ca

45、pacity of315million k Wh, an increase of757mil lion kWh.Salestotaled 7.425 billion k Wh,exceedi ng sale s of330 million kWhtheannual Exe cutive budget,ani ncrea se of729 million k Wh.-S ecurity measures: unplanned outages2.5times.No personali njury a cci dent occurre d, no majoraccide ntand above,no

46、major fireacci dent swithoute nvironmental polluti on accide nts,safetyforthre econsecutiveyearsto mai ntain sta bilityto g ood posture.Busi nessfi nancialindicat ors:total profits of255milli onYuan, beyond t hea nnualbudget of207million Yuan,beyondt heData ng companyindex41.89 millionYuan,a n incre

47、ase of1.76mil lion Yua n,FCM a ssessment atgrade four.-Energy: power supply standard coal compl eting312.25 g/k Wh, down 0.1 g /kWh;integrate dauxiliary powerconsumpti on ratio in 5.12%, dow n 0.26%; pollutantemis sions performancegrea tly reduce d compare dto lastyea r, carbon 0.09 g /kWh,sulfur di

48、oxide 0.104 g /kWhNOx0.512 g/kWh; dust removaefficiency of more t han 99.8%.-Relia bilityindex: equivale nt availabilityfact orin 93.47%,increase d 7.95% from ayearearlier.Equivalentforced outage rate 0.08%,0.16%re ductionoverthe same peri oda yearearli er.Majorachievement s: first,we shoul da dhere

49、tot hetwo "manage mentsystem" basis, stre ngthe ningtechnologi calresear ch, strengthe nhi dden ha zards controlandintrinsic safety Enterprise construction took newste ps. -The tw o "managementsystem" for improvement. Focus onpr omotingthe powerofthecompa ny managementsystem a nd

50、theapplicati ona nd implementati on ofthe safety loop five-starmanagementsystem,improvethesafety management system,realize thesystem ofsafetycontrol.Further regulatesecurityroutine s,safetysupervisi on a ndmanag ement netw orkrole to playtoachieve closed -loop. Stre ngtheningthe supervisi on a nd ma

51、nagement of ha bitualvi olationof, strengthening t he safety supervisi on ofoutsourci ngcontract ors.Carried out inspring a nda utumn ofsecurity inspecti ons,floodcontrol a nd i nspecti on,safetypr oduction mont h, daysupervision of productionsafetyand theOlympic Games andother产品名称通用桥式起重机产品编号2009-02

52、4规格型号QD50/10-28.5A5合同号计算内容结论 小车惯性载荷4 PHXC=0.15 × 11000× 9.8=2.12 × 104N 动载系数2 2=1+0.71V=1.052. 强度计算 移动载荷产生的弯矩：移动载荷P= 2· q+1/2GXC=1.05 × 4.9× 105+1/2× 2.74× 105=6.71 × 105跨中产生的最大弯矩Mmax=（ 1/4） P· L=（ 1/4）×6.71 × 105× 28500=2.77 × 10

53、9N· mm 固定载荷产生的弯矩产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论桥架自重属于均布载荷则 q=（ 1/2Gqi） /28500=5.7N/mm跨中产生的最大弯矩M max=（ 1/8 ） qL2=（ 1/8）×5.7 × =1.89× 108N· mm 小车惯性载荷产生的弯矩当小车位于跨中时大车起制动惯性载荷在主梁上产生则跨中最大弯矩Mmax=（ 1/4 ）×PHXC· L=2.2× 108N· mm 桥架惯性载荷产生的弯矩桥架惯性载荷作用

54、于主梁上为均布载荷产品设计计算书产品名称通用桥式起重机产品编号2009-024规格型号QD50/10-28.5A5合同号计算内容结论q28500则 q=（ 1/2PHQJ） /28500=1.34N/mm跨中产生的最大弯矩Mmax=（ 1/8 ） qL2=（ 1/8 ）×1.34 × =4.56× 107N· mm 主梁截面特性选取主梁截面如下图所示惯性矩：IX=（ 6 × 17003/12 ）×2+20× 700 × 2 × 8502=2.51 ×1010mm4产品设计计算书Delegates

55、,staff: Hell o! inthe r un-uptot he Spri ng Festival,we held one session offourstaffrepresentativesConference2013 -workshop,full back i n2012,careful analy sis ofthecurr ent sit uation,discuss2013 development plans.Here,onbehalf of my company2013w ork reports tothe Ge neralAssembly,for consi deratio

56、n.PillarI, 2012ba ckin 2012, XX pow er companie sadheretothe party's 17great spiritfor guidance, comprehe nsivelyimpleme ntthe scie ntificconcept ofdevel opment, prom oting cost-lea dership strategy, standards,focuson impl ementation, lea nmanagem ent, continuously impr ove,sm ooth present safet

57、y situati on ofenterpri se manageme nt, busi ness ma nagementa nd contr olscientific a nd standardize d,and thede dicati on ofstaff,managea harmoni ousand dem ocraticatmosphereofthe good situation.Mai nindicat orsare asfoll ows:-t he battery i ndicat or: powerge nerationtotaled7.815billionk Wh,bey o

58、ndthe a nnualbudget impl ementation ca pacity of315million k Wh, an increase of757mil lion kWh.Salestotaled 7.425 billion k Wh,exceedi ng sale s of330 million kWhtheannual Exe cutive budget,ani ncrea se of729 million k Wh.-S ecurity measures: unplanned outages2.5times.No personali njury a cci dent occurre d, no majoraccide ntand above,nomajor fireacci dent swithoute nvironmental polluti on accide nts,safe