c ch s cng t t xa Nhm gim chi ph nhn cng, nng cao hiu qu kinh doanh ng thi gim tn tht in nng v trnh tiu cc pht sinh trong khu ghi ch s cng t bng phng php truyn thng. Chng ti pht trin cc gii php c ch s t xa da trn cng ngh khng dy p dng cho hu ht cc loi cng t ang c s dng ti th trng Vit nam . a. Cng ngh ng truyn - CDMA450 -Vin thng in lc - GSM/GPRS ( Cho php c ch s cng t bng tin nhn SMS) - RF (Radio Frequency) b. Cc loi cng t p dng - Cng t ABB (ELSTER) - Cng t Landis - Cng t Actaris - Cng t SmartRF - Cng t ETEK c. M hnh h thng M hnh phn tn:

M hnh ny p dng cho cc cng t n l, ngha l mi cng t s c gn mt modem CDMA hoc GSM. M hnh tp trung: p dng ph hp cho cc khu cng nghip, cc trm phn phi in m s lng cng t ln hn 2 chic v khong cch gia cc cng t khng qu 1000m.

Trong m hnh ny, thay v phi s dng mi modem CDMA v mt thu bao in thoi cho mi cng t ta s dng modem RF. Cc d liu t cng t s c truyn v my tnh trung tm thng qua b tp trung c tch hp cu chuyn i RF- CDMA. Vic s dng modem RF khng nhng gim chi ph gi thnh m con tin li cho vic quay s v kt ni t my tnh trung tm n cc cng t bi vic s dng duy nht mt s thu bao in thoi.

d. Cc loi Modem dng cho c ch s cng t:

Gim st in nng trc tuyn Trong tnh hnh gi in tng cao, ngun cung in ngy cng thiu th vic theo di, gim st v iu tit lng in nng tiu th i vi cc doanh nghip sn sut cng nh cc n v kinh doanh in l ht sc cn thit v cp bch. Lm bt c nhu cu thc t ny , Cng ty

ETEK u t nghin cu v pht trin h thng gim st in nng trc tuyn E-metering vi m hnh, tnh nng o, hin th trc tuyn cc thng s c bn sau: a. Tnh nng c bn:

Thng tin li in, bao gm:

- in p, dng in tc thi tng pha - Cng sut tc dng, cng sut phn khng tc thi tng pha. - H s cng sut tng pha.

Thng tin in nng, bao gm:

- in nng tc dng ( tng biu gi, in nng tng). - in nng phn khng ( theo 4 gc phn t). - Biu ph ti. - D liu cht ch s

Thng tin cnh bo, bao gm:

- Cnh bo qu p, qu dng. - Mt p, mt dng. - Lch pha. - H s cng sut thp

Trng thi h thng

- Trng thi CB - Trng thi thit b ngoi vi c kt ni vi cng t

iu khin t xa thit b ngoi vi

b. M hnh h thng M hnh phn tn:

M hnh tp trung:

Sn phm > Cng t in t > Mt pha Thng tin chi tit sn phm Sn phm : ETEK-13 Nh sn xut : ETEK Phng to

Thng tin khc v sn phm Thng s k thut

Sn phm > Cng t in t > Mt pha

Thng tin chi tit sn phm Sn phm : ETEK-14 Phng to

Thng tin khc v sn phm

HNG MC Tn nh sn xut Kiu Chun p dng Dng in nh mc (Ib) Dng in cc i (Imax) in p nh mc (Un) Di in p lm vic Tn s Cp chnh xc Cch in kh nng chu in p xung Cng sut tiu th (1) Mch p (2) Mch dng Dng in khi chuyn nh nht Hng s cng t Kiu mn hnh S lng ch s hin th Di nhit (1) Nhit lm vic (2) Nhit lu kho m Vt liu (1) cng t (2) V cng t (3) V cng t lp ngoi (4) Np u cu u

C TRNG K THUT ETEK TECHNOLOGY JSC ETEK IEC 60259, IEC62052-11, IEC62053-21 IEC62053-23, IEC61107 20A 20A 80A 100A 230V 230 20% 50Hz 5% 1.0 i vi P v 2.0 i vi Q 4KV RMS