ZVMD Voccum On Load Tap Changer Technical Data

Transcription

1 ZVMD Voccum On Load Tap Changer Technical Daa I. ZVMD Technical Specificaions Iem Specificaions Ⅲ000 2 Max. Raed hrough curren () Raed frequency (Hz) 或 Phase and connecing mode Max. Raed volage (V) Raed. Sep capaciy (kv) Three phase for neural poin of Y connecion Shor circui Thermal (3s) 5 curren (k) Dynamic (peak) Operaing posiion No include changeover selecor: Max. 8 Inculde changeover selecor: Max Raed volage Max. working volage Power frequency wihsand volage(50hz,min) Raed lighning inpulse wihsand volage(.2/50μs) Tap selecor Mechanical service life insulaion level of ap changer (kv) Elecrical service life Service pressure Leakage es for Over pressure proecion Proecion relay Moordriven uni Oil comparmen diverer swich Grades of, C, D according o insulaion level No less han,500,000 operaions No less han 350,000 operaions Pa No leakage under Pa for 24h lasing cap las a(4~5) 0 5 Pa QJ425 oil flow speed se a.0m/s±0% M7 Noe: Sep capaciy= sep volage load curren; Raed sep capaciy is coninuous permissile max. sep capaciy.

2 II. ZVMD asic wiring diagram 000 Level Level 440 Level Level Level 7 Level 9 0 Level 2 Level 3 4 Level 5 6 Level Level ±4 2 Level ±5 43 Level ±6 65 Level ±7 87 Level ±8 Level Level Level Level Level Level ±9 223 Level ± 427 Level ±3 63 Level ±5 835 Level ±7 Level 0 9 Level 2 Level 4 3 Level 6 Level Level ± Level ± Level ±2 633 Level ± Level ±6 Level 8 Level 0 9 Level 2 3 Level 4 5 Level 6 7 Level 0 09G Level ±9 Level 2 223G Level ± Level 4 427G Level ±3 Level 6 63G Level ±5 Level 8 835G Level ±7 Level 9 Level Level Level Level Level 8 Level 8 093G Level ±8 Level 0 Level G Level ± Level 2 Level G Level ±2 3 0 Level 4 Level 4 633G Level ±4 5 0 Level 6 Level6 8353G Level ±6 7 0

3 III. Inernal insulaion level of ZVMD Symol of insulaion disance a c c 2 d Tap selecor ype Tap selecor ype C Tap selecor ype D kv.2/50μs kv 50Hzmin kv.2/50μs kv 50Hzmin kv.2/50μs kv 50Hzmin Volage gradian of every par of regulaing coil Ⅲ000 a a c 2 O d a Linear reuglaing Reversal regulaing a 0 c SF Coarse and fine regulaing Inersep insulaion level a 0 of SF wih spark gap is: 50Hz min 20kV &.2/50μs 90kV

4 IV. Exernal dimension diagram of ZVMD h i k m o n Ø56 x 75 o (2) (8) 7 (2) (8) 7 (2) (8) oom of ap selecor equipoenial wih Tap changer head Ø478 Ø Ø570 Grading ring (only 70kV & 252kV) G Diverer swich Tap selecor Ø I Roae 3: Ø R3 Ø Ø I 9(0) (2) 9(0) 36 (2) (2) (2) (2) 9(0) (2) 9(0) (2) E 2M Tap changer head (plane) 0 (2) 9(0) 5 E2 3 (2) 5 S Q Ø555 Ø740 5 R R Ø65 Ø85 Ø5 Selecor No. Max. working volage (kv) Tap changer curren erminal (neural poin) E Oil spill hole of ap changer head E2 Oil spill of ransformer oil ank G Transmission of ap selecor (oom of ap selecor equipoenial wih ) Conac flange Q S R Volume of oil dm 3 Q Oil reurn flange connacing flange R Proecive relay connecing flange Thickness 6 eigh kg S Oil sucion flange connecing flange 4Ø4 Transmission shaf Figure Size mm moun of peroleum migraion dm 3 C D h i k n o m x ZVMDⅢ000 Linear regulaing

5 h i x Ø Tap changer head Ø478 Ø Ø570 Grading ring (only 70kV & 252kV) Diverer swich G Ø Ø602 R3 Ø 470 I () (2) 3.2 9(0) (2) 9(0) (2) () k n o o m (2) () 7 (2) () 7 (2) () oom of ap selecor equipoenial wih 2M2 35 E Tap changer head (plane) 37.5 Tap selecor 20 I Roae 3: Ø (2) 9(0) 36 9(0) (2) (2) 3 5 (2) 7 () () () 5 E2 3 (2) 5 S Q Ø555 Ø740 5 R R Tap changer curren erminal (neural poin) E Oil spill hole of ap changer head E2 Oil spill of ransformer oil ank G Transmission of ap selecor (oom of ap selecor equipoenial wih ) Q Oil reurn flange connacing flange R Proecive relay connecing flange S Oil sucion flange connecing flange 4Ø4 Transmission shaf Figure 2 Thickness 6 Conac flange Q S R Ø65 Ø85 Ø5 Selecor No. Max. working volage (kv) Size mm Volume of oil dm 3 moun of peroleum migraion dm 3 eigh kg C D h i k n o m x ZVMDⅢ000 Reversal regulaing

6 h k i 9 30 m o n x o Ø56 Grading ring (only 70kV & 252kV) (2) () 7 (2) () 7 (2) () oom of ap selecor equipoenial wih Tap changer head Ø478 Ø Ø570 Diverer swich G Tap selecor 80 Ø I Roae 3: Ø R3 Ø602 Ø 470 I 9(0) (0) (2) (2) 9(0) 7() (2) (2) (2) 36 (2) 7() 7() 7() O O O O E Tap changer head (plane) 2M (2) 9(0) 7() O 5 5 S Q E2 Ø555 Ø740 3 (2) 5 R R Tap changer curren erminal (neural poin) E Oil spill hole of ap changer head E2 Oil spill of ransformer oil ank G Transmission of ap selecor (oom of ap selecor equipoenial wih ) Q Oil reurn flange connacing flange Thickness 6 R Proecive relay connecing flange S Oil sucion flange connecing flange 4Ø4 Transmission shaf Figure 3 Conac flange Q S R Ø65 Ø85 Ø5 Selecor No. C D Max. working volage (kv) h i Size k n mm o m x Volume of oil dm moun of peroleum migraion dm eigh kg ZVMDⅢ000 coarse and fine regulaing

7 5 V. ZVMD Insallaion Dimensions 40 R Ø70 Ø740 Ground ol 2M Oserve window 5 Oil overflow hole E2 of ransformer oil ank Oil filling flange Q 5 5 Oil sucion flange S Proecive relay flange R Oil overflow hole E of ap changer head Ø25 Ø65 Ø85 4Ø4 Q:Revolving 360 S:Revolving 360 R:Revolving 360 (can e replaced y Q connecion head) 24Ø5 Mouning hole Ø5 Figure 4 ZVMD head insallaion dimensions

8 Oil sucion pipe Lifing Head flage 72 Transformer oil ank cover M (47) 3 Osealing ring Supporing flange Lifing plae Ø620 Ø750 2Ø30 Guide rod Ø650 Guide rod Figure 5 ZVMD ell ype OLTC mouning dimension

9 5 7.5 Ø Ø670 24M2 Equispaced 5 Ø70 Ø740 Figure 6 ZVMD Mouning flange dimension of ransformer ank cover

10 VI. Layou selecion diagram of ZVMD head cover. head cover layou selecion diagram wihou pressure release valve In order o mee requiremen of cusormers. Please choose he manufacure mehod of head cover in he order. If cusomer doesn' make any choose, hen assemle according o figure. If here are any special any siuaion, ha' need cusomer's reques when give order. Noe: The oupu shaf of ZVMD head cover could roae ±60, if cousomers wan o over he angle, please claim in he order. Tha could help us o manufacure your goods according wih he reques, or can make he ap posiion display misake Figure Figure Figure C 2. head cover layou selecion diagram wih pressure release valve In order o mee requiremen of cusormers. Please choose he manufacure mehod of head cover in he order. If cusomer doesn' make any choose, hen assemle according o figure D. ny special angle, please claim in he order. Noe: The oupu shaf of ZVMD head cover could roae ±60, if cousomers wan o over he angle, please claim in he order. Tha could help us o manufacure your goods according wih he reques. Pressure release valve Ø ± Gear drive mechanism Oupu shaf gear drive mechanism Figure D:Sardand Pressure release valve elecrical signal oupu connecion diagram (Sardand) Type I Type II Figure E:Selecale 5 6 4

11 VII. ZVMD hree mechanical linkage layou drawing Noe: Normal circumances, hree mechanical linkage producion o Figure F, if wan o producion o Figure G, ha need o user requess. H H2 H3 Figure F H3 H2 H Figure G layou model Min. Size (mm) Max. Size (mm) H H2 H3 H H2 H3 Figure F Figure G

12 VIII. ZVMD Poenial resisance & poenial swich During he ap changer over selecor operaion, he decomposiion winding in a "suspended" sae. ecause here coupling capacience C w in main winding and ap winding, here is a coupling capaciance C e in ap winding in he enclosure's sake, he changeover selecor spark dischanger. Order o reduce spark dischange gas, using solid juncion poenial resisance or y a poenial opening o link poenial resisance. Rp Rp Sp a Plae ype poenial resisance insallaion dimension 56 U V M8 6Ø22 asolid juncion poenial resisance R p orrow poenial swich Sp Solid juncion poenial resisance Rp Noe:.Poenial resisance is charged ody, should e pay aenion for he disance for he wall and he disance; 2. Choosse plae ype poenial resisance and swich. The line requires he user o ring your own.