CPS-45 control ndi chitetezo chosinthira zida
一.Kuchuluka kwa ntchito
1.1 Kukonzekera ndi kugwiritsa ntchito
CPS mndandanda wowongolera ndi chitetezo switchgear (yomwe imatchedwa CPS), yomwe imagwiritsidwa ntchito makamaka pa AC 50Hz (60Hz), idavotera voteji yogwira ntchito mpaka 690V.The oveteredwa panopa thupi lalikulu ndi kuchokera 6.3A kuti 125A, ndi wolamulira wanzeru akhoza kusintha ntchito panopa kuchokera 0.4A Kuti 125A, kulamulira mphamvu galimoto kuchokera 0.05KW mpaka 50KW mu dongosolo mphamvu kupanga, kunyamula ndi kuswa panopa kapena voteji. pamikhalidwe yabwinobwino (kuphatikiza zinthu zomwe zachulukirachulukira), komanso zimatha kupanga, kunyamula nthawi inayake ndikuswa zomwe sizili pano kapena voteji.Pakalipano kapena voteji nthawi zonse (monga chigawo chachifupi, kuperewera kwa magetsi, etc.).
CPS utenga yodziyimira payokha mankhwala mtundu mtundu, amene integrates ntchito zazikulu za miyambo dera breakers (ma fuse, contactors, mochulukira (kapena overvoltage, etc.) chitetezo relays, starters, isolators, motor mabuku oteteza, etc. ntchito mwachindunji anthu ulamuliro, ndi gulu chizindikiro ndi electromechanical chizindikiro alamu ntchito, ndi overvoltage ndi ntchito undervoltage chitetezo, ndi gawo kulephera ndi gawo kulephera chitetezo ntchito, kukula yaing'ono, kudalirika mkulu, ndi yochepa dera kuswa mphamvu High, lalifupi arcing mtunda ndi ubwino zina, zokhala ndi mawonekedwe osiyanasiyana, mawonekedwe achitetezo anthawi yomwe amalumikizana bwino mkati (chitetezo chanthawi yayitali chotalikirapo, chitetezo chochedwetsa nthawi yayitali, chitetezo chanthawi yochepa, chitetezo chanthawi yochepa komanso chitetezo chanthawi yomweyo, chitetezo cha magawo anayi Malinga ndi kufunikira kosankha ntchito kapena ma modules, imatha provide ulamuliro wangwiro ndi chitetezo ntchito zosiyanasiyana mizere mphamvu (monga pafupipafupi kapena kaŵirikaŵiri chiyambi cha motors ndi katundu wogawa dera), ndipo zochita ndi zolondola kupewa kuzimitsidwa kosafunika mphamvu ndi kusintha magetsi kudalirika.
Ndi chifukwa chakuti zinthu za CPS zili ndi magwiridwe antchito apamwamba komanso zabwino, makamaka zoyenera pamachitidwe otsatirawa:
△ Kugawa mphamvu ndi chitetezo chamoto ndi machitidwe owongolera muzitsulo, migodi ya malasha, chitsulo, petrochemicals, madoko, zombo, njanji ndi madera ena.
△ Malo owongolera magalimoto (MMC) ndi malo ogawa magetsi;
△ Malo opangira magetsi ndi malo ocheperako;
△ Madoko ndi masitima apamtunda (monga ma eyapoti, malo okwerera njanji ndi misewu, etc.);
△ Njira zowunikira komanso mpweya wabwino;
△ Dongosolo loyang'anira ndi chitetezo cha asitikali (monga mamalire, ma radar, ndi zina);
△ Mapampu oyaka moto, mafani, ndi zina zambiri nthawi zosiyanasiyana;
△Kuyatsa zamakono zamakono, kutembenuka kwa mphamvu, mapampu, mafani, zoyatsira mpweya, chitetezo chamoto, kuyatsa ndi zina zamagetsi ndi zotetezera;
△ Chipatala;
△Nyumba zamalonda (monga malo ogulitsira akuluakulu, masitolo akuluakulu, ndi zina);
△Chipinda cholumikizirana ndi telefoni;
△Malo opangira zidziwitso (monga tapala, banki, malo ogulitsa malonda, etc.)
△Single motor control ndi chitetezo dongosolo mu fakitale kapena workshop;
△ Makina owunikira akutali.
1.2 Gwiritsani ntchito magulu azinthu
Magawo omwe amagwiritsidwa ntchito ndi ma code a dera lalikulu ndi gawo lothandizira la CPS akuwonetsedwa mu Gulu 1.
Tebulo 1. Gwiritsani ntchito magulu kuti mulembe mayina ndi momwe mungagwiritsire ntchito zinthu za CPS
| dera | Gwiritsani ntchito code code | Kugwiritsa ntchito mwachizolowezi |
| batire lalikulu | AC-20A | Kutseka ndi kutulutsa zida zamagetsi popanda katundu |
| AC-40 | Mabwalo ogawa mphamvu, kuphatikiza zopingasa zosakanikirana komanso zopatsa mphamvu zokhala ndi ma reactor ophatikizana | |
| AC-41 | Osagwiritsa ntchito inductive kapena pang'ono inductive katundu, ng'anjo yotsutsa | |
| AC-42 | Motere wa mphete yamtundu wa injini;kuyamba, bwino | |
| AC-43 | Gologolo induction motor: kuyambira, kusweka pakugwira ntchito | |
| AC-44 | Ma motor induction agologolo: kuyambira, kuthamanga mobwerera chakumbuyo kapena kuthamanga chakumbuyo, kuthamanga | |
| AC-45a | Nyali yoyatsa ndi kuyatsa | |
| AC-45b | Kuzimitsa kwa nyali za incandescent | |
| Mphamvu zothandizira | AC-15 | Kuwongolera AC Electromagnetic Loads |
| AC-20A | Kutseka ndi kuzimitsa zida zopanda zida zosinthira zopanda katundu | |
| AC-21A | On-off kukana katundu, kuphatikizapo overloads yoyenera | |
| DC-13 | Kuwongolera katundu wamagetsi amagetsi a DC | |
| DC-20A | Kutseka ndi kutulutsa zida zamagetsi popanda katundu | |
| DC-51A | Kuyatsa ndi kuzimitsa katundu wotsutsa, kuphatikizapo kupitirira koyenera |
1.3 Chogulitsacho chimagwirizana ndi muyezo
TS EN 60947-6-2 IEC 60947-6-2 "Low-voltage switchgear and control equipment" - Gawo 6: Zipangizo zamagetsi zamagetsi zamagetsi zomwe zimagwiritsidwa ntchito mosiyanasiyana - Gawo 2: Zida zosinthira ndi chitetezo ndi GB14048.9 "Low-voltage switchgear and control" zida) No. Gawo 2: Muyezo wowongolera ndi chitetezo switchgear (zida).
二.Nthawi zogwirira ntchito
2.1 Kutentha kwa mpweya wozungulira
2. 1. 1 Mtengo wapamwamba kwambiri sudutsa +40P;
2. 1.2 Malire otsika si otsika kuposa -5℃;
2. Mtengo wapakati wa masiku 1.3 sudutsa +35 ℃,
2. 1.4 Pamene kutentha kwa mpweya wozungulira kumadutsa pamtunda wapamwamba, wogwiritsa ntchito akhoza kukambirana ndi kampani yathu.
2.2 Kutalika kwa malo oyikapo sikuyenera kupitirira 2000 metres.
2.3 Mikhalidwe ya mumlengalenga
Chinyezi cham'mlengalenga sichidutsa 50% pamene kutentha kwa mpweya ndi +40 ° C: chinyezi chapamwamba chikhoza kupezeka pa kutentha kochepa.Pamene kutentha kwapakati pamwezi ndi +25 ° C, kutentha kwapakati pamwezi ndi 90% chifukwa cha Miyezo iyenera kutengedwa kuti ipangidwe chifukwa cha kusintha kwa kutentha.
2.4 Mulingo wa kuipitsidwa: Gawo 3
2.5 Kuyika gulu: Class II (690V system), Class IV (380V system)
2.6 Mphamvu yoyendetsera magetsi iyenera kukhala mkati mwa kusintha kwa (85% ~ 110%) Us
三.Mtundu wa mankhwala ndi tanthauzo
| Chitsanzo: CPS (CPS) □/ □/ □ / □ □ | CPS | Kuwongolera ndi kuteteza zida zosinthira (zida zamagetsi zambiri) |
| £ | Mtundu wophatikizira katundu: mtundu woyambira wopanda code, N-reversible motor controller, J-decompression starter, S-double magetsi chamagetsi, D-double-speed motor controller, Z-autocoupling decompression starter | |
| £ | Pakali pano: 6.3/12/16/18/32/45/63/100/125A | |
| £ | Kuphwanya mphamvu (ICa): C-zachuma mtundu 35KA, Y muyezo mtundu 50KA H-mkulu kuswa mtundu 60KA | |
| £ | Nambala yayikulu ya pole: 3, 4 | |
| £ | Khodi yotulutsa mwanzeru: yowonetsedwa ndi gulu la code * yovotera pano (mtundu wa B-basic, mtundu wa E-advanced) * (0.4-125A) | |
| £ | Nambala yothandizira: 02, 06 | |
| £ | Kuwongolera mphamvu zamagetsi (Ife): M220V, 0 ~ 380V | |
| £ | Nambala yantchito yowonjezera: reactance ~ palibe code, kugawa mphamvu-P, kuzimitsa moto-F, kutayikira-L, kulumikizana-T, kudzipatula-G |
四、Magawo akuluakulu aukadaulo
4.1 Magawo a dera lalikulu
Dera lalikulu limapangidwa makamaka ndi thupi lalikulu ndi kumasulidwa kwanzeru, magawo awiriwa ndi kasinthidwe kakang'ono ka zinthu zomwe zimagwira ntchito za CPS.
Thupi lalikulu lomwe lidavotera panopa, Ith yotentha yapano, mphamvu yamagetsi yotenthetsera Ui, ma frequency ovoteledwa, mphamvu yamagetsi ya Ue yomwe ikugwira ntchito komanso kuchuluka kwamphamvu kwa owongolera mwanzeru akuwonetsedwa mu Table 2 ndi Table 3.
Ue ndi Keyi's wanzeru zowongolera chipangizo chokhazikika chomwe chikugwira ntchito pakali pano kuti chikhale chosiyana kapena kukoka mphamvu chikuwonetsedwa mu Chithunzi 2 ndi Gulu 3. Gulu 2
Zoyambira magawo a dera
| Inu | ln(A) | lth (A) | UI (V) | 额定频率(Hz) | Uwu (V) |
| 45 | 3, 6.3, 12, 16, 32, 45 | 45 | 690 | 50/60 | 360/690 |
| 125 | 12, 16, 18, 32, 45, 63, 100, 125 | 125 |
Main magawo a dera lalikulu
| Frame yamakono Inm | Wolamulira wanzeru adavotera panopa Ie | Kuchedwa kwakanthawi kokhazikitsa mtundu wa Ir | Kuchedwetsa kwakanthawi kochepa kukhazikitsa kwatsopano Ndi | 380V kuwongolera mphamvu (KW) | Main body voted current In | Gwiritsani ntchito mtundu | ||||
| 45 | 0.4 | 0.16-0.4 | 0.48-4.8 | 0.05-0.12 | ||||||
| 1 | 0.4-1 | 1.2-12 | 0.12-0.33 | |||||||
| 2.5 | 1-2.5 | 3-30 | 0.33-1 | |||||||
| 4 | 1.6-4 | 4.6-4.8 | 0.53-1.6 | 12 | ||||||
| 6.3 | 2.5-6.3 | 7.5-75.6 | 1-2.5 | |||||||
| 10 | 4-10 | 12-120 | 1.6-5.5 | 16 | ||||||
| 12 | 4.8-12 | 14.4-144 | 2.2-5.5 | |||||||
| 16 | 6.4-16 | 19.2-192 | 2.5-7.5 | 18 | ||||||
| 18 | 7.2-18 | 21.6-216 | 3.3-7.5 | |||||||
| 25 | 10-25 | 30-300 | 5.5-11 | 32 | ||||||
| 32 | 12.8-32 | 38.4-384 | 5.5-15 | |||||||
| 40 | 16-40 | 48-480 | 7.5-18.5 | 45 | ||||||
| 45 | 18-45 | 54-540 | 7.5-22 | |||||||
| 125 | 6.3 | 2.5-6.3 | 7.5-75.6 | 1-2.5 | ||||||
| 10 | 4-10 | 12-120 | 1.6-5.5 | 12 | ||||||
| 12 | 4.8-12 | 14.4-144 | 2.2-5.5 | 16 | ||||||
| 16 | 6.4-16 | 19.2-192 | 2.5-7.5 | 18 | ||||||
| 18 | 7.2-18 | 21.6-216 | 3.3-7.5 | 32 | ||||||
| 25 | 10-25 | 30-300 | 5.5-11 | |||||||
| 32 | 12.8-32 | 38.4-384 | 5.5-15 | 45 | ||||||
| 40 | 16-40 | 48-480 | 7.5-18.5 | |||||||
| 45 | 18-45 | 54-540 | 7.5-22 | 63 | ||||||
| 50 | 20-50 | 60-600 | 7.5-22 | |||||||
| 63 | 25.2-63 | 75.6-756 | 11-30 | 100 | ||||||
| 80 | 32-80 | 96-960 | 15-37 | |||||||
| 100 | 40-100 | 120-1200 | 18.5-45 | 125 | ||||||
| 125 | 50 * 125 | 150-1500 | 22-55 | |||||||
Zindikirani:
※ Parameter ya chitetezo pompopompo sichisinthika, mtengo wake udavoteredwa pa 16Ir
※ Mitundu yosinthika yachitetezo chachitetezo chanthawi yayitali Ndi yazinthu zamagalimoto ndi 6Ir-12Ir
※ Mitundu yosinthika yachitetezo chachitetezo chanthawi yayitali Ndi yazinthu zogawa mphamvu ndi 3Ir-6Ir
※ Mitundu yamphamvu yomwe ili pamwambayi imatanthawuza zaukadaulo wa Y mndandanda wamagawo atatu asynchronous motors
※ Ngati muli ndi zofunikira zapadera, chonde lemberani wopanga
4.2 CPS chitetezo mawonekedwe pamapindikira
CPS Motor Protection Time-Current Characteristics CPS chitetezo kugawa mphamvu nthawi-zimene zikuchitika
4.3 Makhalidwe ochita kuwongolera magalimoto (magulu oyenerera: AC-42, AC-43, AC-44)
| nambala ya siriyo | Zosintha zingapo zapano (Ir1) | Liti ndi liti mgwirizano wokhudzana ndi Ie | Kutentha kwatsatanetsatane |
| 1 | 1.0 | 2h sizikuyenda | +40 ℃ |
| 2 | 1.2 | 2h Ulendo wamkati | |
| 3 | 1.5 | 4min Ulendo wamkati | |
| 4 | 7.2 | 4-10s Ulendo wamkati |
4.4 Makhalidwe ochitapo pa katundu wa mzere wogawa (gulu la ntchito: AC-40, AC-41)
| Ntchito gulu | Zosintha zingapo zapano (Irl) | Nthawi yosankhidwa molingana ndi Le | Kutentha kwatsatanetsatane | ||
| A | B | ndi <63A | Le≥63A | ||
| AC-40, AC-41 | 1.05 | 1.3 | 1 | 2 | + 30 C |
| Zindikirani: A ndiye pangano losachitapo kanthu, B ndiye zomwe mwagwirizana | |||||
4.5 Main luso magawo a kumasulidwa wanzeru
4.5.1 Yambani Kuchedwa
Panthawi yoyambira ya CPS, imangoteteza kusowa kwa fuse, kulephera kwa gawo, kupitirira malire, kutsika kwapansi, kutsika kwapansi, kufupikitsa, kutayikira ndi kusagwirizana kwa magawo atatu.Kupewa kutetezedwa kwapamwamba komanso kupitilira apo CPS ikuyamba;nthawi yokhazikitsa ndi (Sankhani pakati pa 1 ~ 99) masekondi;
4.5.2 Kutetezedwa kwamagetsi mopitilira muyeso komanso kuchepa kwa mphamvu
Ndi magetsi othandizira okha omwe amatetezedwa kuti awonetsetse kuti coil ikugwira ntchito moyenera.
Chitetezo champhamvu: Pamene mphamvu yowonjezera yowonjezera idutsa mtengo wokhazikitsidwa (mafakitale ndi 120% Us), nthawi yochitapo ndi yocheperapo kapena yofanana ndi masekondi 10.
Chitetezo chamagetsi: pamene magetsi owonjezera amagetsi ndi otsika kuposa mtengo wokhazikitsidwa (mafakitale ndi 75% Us), nthawi yochitapo ndi yocheperapo kapena yofanana ndi masekondi 10.
4.5.3 Kutetezedwa kwanthawi yayitali kwanthawi yayitali
Wogwiritsa ntchito amayika ma leti omwe akugwira ntchito pakali pano potulutsa mwanzeru molingana ndi katundu wapano I, kotero kuti katundu wapano I ali pakati pa 80 ndi 100% le, ndipo nthawi yochitapo imayikidwa molingana ndi katundu.Onani Table 4 kuti muwone momwe machulukitsidwe amachulukira komanso nthawi yochitapo kanthu.Malire a nthawi yodzaza ndi kuchedwa kwanthawi yayitali yodzitchinjiriza ndi fakitale yokhazikitsidwa pa F2
Table 4. Zochita za CPS inverse-time overload chitetezo cha nthawi yayitali
| Nthawi zambiri | nthawi (S) | serial nambala (F) | 1 | 2 | 3 | 4 |
| l.0 | palibe chochita | palibe chochita | palibe chochita | palibe chochita | ||
| ≥1.1 | 5 | 60 | 180 | 600 | ||
| ≥1.2 | 5 | 50 | 150 | 450 | ||
| ≥1.3 | 5 | 35 | 100 | 300 | ||
| ≥1.5 | 5 | 10 | 30 | 90 | ||
| ≥2.0 | 5 | 5 | 15 | 45 | ||
| ≥3.0 | 5 | 2 | 6 | 18 | ||
4.5.4 Kutetezedwa Kwanthawi yochepa
Chitetezo cha Undercurrent: Zimatengera chiŵerengero cha osachepera panopa ndi panopa ovotera kudziwa ngati yambitsa chitetezo undercurrent (kukhazikitsa fakitale ndi 60%).The ntchito panopa le ya CPS wanzeru kumasulidwa, kotero kuti galimoto si m'kati mwa chitetezo osiyanasiyana CPS.
Pamene panopa ndi yocheperapo mtengo woikidwiratu wa chitetezo cha undercurrent, nthawi yochitirapo imakhala yocheperapo kapena yofanana ndi masekondi 30.
4.5.5 Gawo lachitatu losalinganizika (losweka, losowa gawo) chitetezo
Kutetezedwa kwa magawo atatu kumayang'aniridwa ndi chiŵerengero cha kusiyana pakati pa chiwerengero chapamwamba ndi chochepa chamakono mpaka pakalipano kuti mudziwe ngati muyambe chitetezo cha magawo atatu (kupuma, kutaya gawo) chitetezo.
(Mlingo wosakhazikika = (kuchuluka kwapano - kucheperako>/kuchuluka kwapano)
Pamene kusiyana kwa magawo awiri amtengo wapatali panopa kupitirira 20 ~ 75% (makonzedwe a fakitale ndi 60%), nthawi yokonzekera zochita imakhala yocheperapo kapena yofanana ndi masekondi atatu.
4.5.6 Chitetezo chokhazikika
Chitetezo chotsekeka ndikuteteza mota kuti isatenthe ndi kuwononga mota chifukwa cha kutsekeka kwakukulu kwa zida zoyendetsera galimoto kapena kudzaza kwagalimoto.Nthawi zambiri, ntchito yomwe ikugwira ntchito imafika pamtengo wokhazikika kuti uweruze ngati yambitsani chitetezo chotsekedwa.
Pamene ntchito yamakono ikufika ku 3.5 ~ 8 nthawi zapano, nthawi yochitapo ndi yocheperapo kapena yofanana ndi masekondi 0.5.
4.5.7 Chitetezo chocheperako chozungulira chachifupi
Pamene ntchito yamakono ikufika nthawi zoposa 8 za nthawi yomwe idavotera, nthawi yochitapo kanthu ndi yocheperapo kapena yofanana ndi masekondi 0.2.
4.6 Kutha kupanga, kunyamula ndi kuswa magetsi afupipafupi
| Uwu (V) | main body panopa (A) | Idavotera kuchepa kwa gawo lachidule chagawo (kA) | Chiyembekezo choyezetsa mtengo wamagetsi lcr(A) | Zowonjezera magawo lc (A) | ||
| S mtundu | N mtundu | H mtundu | ||||
| 380 | 12, 16, 18, 32, 45, 63, 100, 125 | 35 | 50 | 80 | 20 × 100 (omwe ndi 2000) | 16x100x0.8 (yomwe ndi1280) |
| 690 | 10 | 10 | 10 | |||
4.7 Nthawi yayikulu yamagetsi yamagetsi komanso kupanga ndi kuswa zinthu
| Ue (V) | ntchito gulu | Moyo wamagetsi | Moyenera | Mkhalidwe wogawanika | |||||
| mayeso atsopano | Pambuyo oveteredwa ntchito yochepa dera mayeso | Kuyembekezeredwa Ochiritsira Panopa Pambuyo Mayeso | l/ ndi | U/UU | lc/ ndi | Ur/Ue | kosφ | ||
| 380 | AC-43 | 100 × 104 | 1.5 × 103 | 3 × 10 pa3 | 6 | 1 | 1 | 0.17 | 0.35 |
| AC-44 | 2 × 10 pa4 | 6 | 1 | ||||||
| 690 | AC-44 | 1 × 10 pa4 | |||||||
| Khodi ya kalasi ya chimango ndi dzina la module | Moyo wamakina |
| thupi lalikulu | 500 × 104 |
| kukhudzana kothandizira | |
| Chizindikiro chothandizira chothandizira | 1 × 10 pa4 |
| Njira yogwiritsira ntchito |
4.8 Moyo wamakina a thupi lalikulu ndi ma modules ake
五、 Kugwiritsa ntchito kapena kuyika zinthu
5.1 Chiwonetsero cha Panel ndi Malangizo Ofunikira
CPS isanayambe kupatsidwa mphamvu ndi kutsekedwa, kuchedwa kwa nthawi yayitali komanso kuchedwa kwafupipafupi kumayenera kukhazikitsidwa kuzinthu zofunikira molingana ndi katundu wa mzere womwe umayendetsa ndikuteteza.Mphamvu ikayatsidwa, chubu ya digito imayatsa, ikuwonetsa kufunikira kwapano ndi voteji, ndikuwonetsa mozungulira kuchuluka kwa magwiridwe antchito omwe amawunikidwa a A, B, ndi C a magawo atatu.
5.2 Kugwira ntchito
Kiyi yoyika: Ngati katunduyo sakuyenda, dinani fungulo ili kuti mulowetse mawonekedwe a parameter
Shift kiyi: Sankhani mawu oti mukhazikike, ndipo mawu omwe asankhidwa ali mkuthwanima
Kiyi ya data: Sinthani mawu akuthwanima.Kusiyana kwa mulingo ndi 1 {0 mpaka 9 mikombelo}
Bwezerani kiyi: Mukamaliza kuyika magawo, dinani batani ili kuti musunge chizindikirocho ndikuchiyika mumayendedwe anthawi zonse.
5.5.1 CPS itatha kulumikizidwa ndi magetsi ogwira ntchito, LED imawonetsa mtengo wamagetsi, womwe ungagwiritsidwenso ntchito ngati voltmeter, ndipo manambala atatu otsiriza amasonyeza mtengo wamagetsi.
5.5.2 CPS ingagwiritsidwenso ntchito ngati ammeter panthawi yogwira ntchito kuti iwonetsere magawo atatu omwe akugwira ntchito pakali pano paulendo.
Kanikizani "shift key" kuti muwonetse momwe akukulirakulira kwa A-phase, B-phase, C-phase ndi L (kutayikira).
Dinani "Reset key" kuti muyambitsenso kuwonetsera kwa magawo atatu omwe alipo.
5.2.3 Kuthetsa mavuto
Osanyamula katundu wa CPS, kanikizani "kiyi ya data", yerekezerani ndi chizindikiro chamtundu wa zolakwika pagawo, mutha kuyang'ana mitundu itatu yolakwika;pamene mtengo wamagetsi ukuwonetsedwa, zikutanthauza
CPS yatuluka pafunso lolakwika ndipo imayikidwa mumayendedwe oyenera: kapena yambitsaninso CPS kuti mutuluke.
5.3 Zokonda pazachitetezo
injini ikayamba ndikuthamanga, kukanikiza fungulo lokhazikitsira ndikosayenera;
Palibe-loading cps: dinani "set key" kuti musankhe mtundu wokhazikitsa, dinani "shift key" nayenso, sankhani kusintha kwa data, dinani "kiyi ya data" kuti musinthe deta;
Parameter ikakhazikitsidwa, yesani "set key" kachiwiri kuti mulowe mu chikhalidwe chotsatira, mpaka kumapeto;
Kusankha kosafunikira kuyenera kusiya zoikamo.Zikhazikiko zonse zikakhazikitsidwa, dinani batani lokhazikitsiranso kuti mutuluke momwe mungakhazikitsire ndikuwonetsa mtengo wamagetsi.
