33
4. CON TACTOR RE LAY
4-1 TYP E S OF CON TACTOR RE LAYS
Refer to ca t a logu e pa ge 38.
4-2 P E RFORMAN CE
Th e per form a n ce of t h e con t act or r ela y is su bject ed to t ests a ccordin g t o t h e test in g con dit ion s specified by st a n dar ds
(IE C, J EM, et c.), a n d m ust sa t isfy t h e valu es set fort h in th em t o secur e gu ar a nt ee. The t est in g conditions va r y wit h
t h e t ypes of loa ds, wh ich a re classified in t o ca t egor ies AC15 a n d DC11 a s given in Ta ble 24.
Ta ble 24. Ut ilizat ion cat egories (IE C 60947-5-1)
Kind of cu rr en t
Ca t egor y
Typica l a pplica t ion s
Alt er n at in g cu rr en t
AC15
Con t r ol of a .c. elect roma gn et s
Direct cur r en t
DC11
Con t r ol of d.c. elect r om a gn et s
Th e m a jor t est it em s of t h e cont a ct or r ela y ar e a s follows, a n d in all of t h e test s t he specified va lues a re fu lly sa t isfied.
(1) Tem per a t ur e r ise t est
Sa m e as t h a t of cont a ct ors (see pa ge 10).
(2) Ma k in g a nd br eak in g capa cit ies t es t
Th e test con dit ion s of m ak in g ca pa cit y a nd br eak in g capa cit y test ar e t h e a bnorm a l condit ions of u se sh own in
Ta ble 25.
Ta ble 25. Condit ion s for m ak in g a nd br eak in g cor r espon din g t o t he ut ilizat ion cat egor ies (IE C 60947-5-1)
N orm a l conditions of u se
Abn or m a l condit ion s of use
Kind of
cu r r en t
Ca t egor y
Mak e
Br ea k
Mak e
Br ea k
I
U
cos
φ
I
U r
cos
φ
I
U
cos
φ
I
U r
cos
φ
Alt er n at in g
cu r r en t
AC15
10Ie
U e
0.7
(1)
Ie
U e
0.4
(1)
11Ie
1.1Ue
0.7
(1)
11Ie
1.1Ue
0.7
(1)
I
U
T
0.95
I
U r
T
0.95
I
U
T
0.95
I
U r
T
0.95
Direct
cu r r en t
DC11
Ie
U e
6
×
P
(2)
Ie
U e
6
×
P
(2)
1.1Ie
1.1Ue
6
×
P
(2)
1.1Ie
1.1Ue
6
×
P
(2)
Ie = r a t ed oper at ion a l cur r en t I = cu rr ent t o be m a de or br ok en
U e = r a t ed oper a t ion a l volt a ge U = volt a ge befor e m ak e
U r = r ecover y volt a ge
T
0.95
= t im e t o r each 95% of t h e st eady-st at e cu rr en t , in m illisecon ds,
P = U eIe = st ea dy-st a t e power con su mpt ion , in wa t ts.
(1) Th e power -fa ct ors in dicat ed a re con ven tion a l va lu es a nd apply on ly t o t h e t est cir cu it s wh ich sim u la te t h e
electr ica l ch a r act er ist ics of coil cir cu it s. It sh ould be n oted t h a t , for t he circu it wit h power-fact or 0.4 (norm a l
con dit ions of use), sh un t r esist or s a re used in t h e t est cir cuit t o sim u lat e t h e da mpin g effect of t h e eddy
cu r r en t losses of t h e a ct ua l elect r om a gn et .
(2) Th e va lu e "6
×
P" r esu lt s from a n em pir ical r elat ionsh ip wh ich is fou n d t o r epr esen t m ost d.c. m a gn etic
loa ds t o a n upper lim it of P = 50W, viz. 6
×
P = 300m s. Loa ds h a vin g power-consum pt ion gr eat er t ha n
50W ar e a ssum ed t o consist of sm a ller loads in pa r a llel. Ther efor e, 300 m s is t o be a n u pper lim it , ir-
r espect ive of t he power con su mpt ion va lue.
Summary of Contents for H100C
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