Bartec Varnost 4KTCR 250, Directions For Use Manual

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NAVODILA ZA MONTAŽO IN PRIKLJUČITEV ELEKTROMOTORJEV tip 4(5)KTCR 250-355
/INSTALLATION GUIDELINES FOR THE 4(5)KTCR 250-355 SQUIRREL – CAGE MOTORS
18
Pred priključitvijo na omrežje v priključni omarici
kontroliramo:
-
da v notranjosti priključne omarice ni prahu,
žičnih ostankov in podobno
-
da izvede priključitev strokovno usposobljena
oseba, ki zagotavlja, da bodo električni spoji
kvalitetni in vijaki primerno pritrjeni
-
da je medsebojna zračna razdalja pri napetosti
690V ali 400 V, minimalno 10 mm, oziroma
14mm za 1000 V (za Exe izvedbo)
-
da so neuporabne žice ločene in primerno
pritrjene
-
da so stične ploskve očiščene in rahlo namazane
z brezkislinsko mastjo
- da je kabel na uvodnici pravilno zatesnjen
Grelci so priključeni na priključkih 30 – 30 ali….
Motorji z grelci so označeni z dodatno napisno
tablico, na katero so imenski podatki grelcev.
Potrebno je zagotoviti,
5.
ZAŠČITA ELEKTROMOTORJEV IN
OBRATOVANJE
Pri postavitvi elektromotorja je vse vrteče dele
potrebno zavarovati pred dotikom.
S stroji smejo opravljati samo kvalificirane osebe.
Pri trajnem obratovanju (oznaka S1), je motorsko
zaščitno stikalo zadostna zaščita z ozirom na
temperaturni razred, če ima vgrajeno ustrezno
bimetalno zaščito, ki omogoča nastavitev imenskega
toka.
Pri obratovanju S2 (kratkotrajno obratovanje s
trajno
obremenitvijo) ali S3 (prekinjeno
obratovanje)ter pri (frekvenčno reguliranem
pogonu), obratovanje s frekvenčnim pretvornikom,
morajo imeti trifazni kratkostični elektromotorji v
vsakem navitju temperaturne senzorje, po enega v
vsaki fazi (DIN 44 080, DIN 44 081, DIN 44 082).
Izklopna temperatura senzorjev je običajno 145°C.
Odgovarjajoča odklopna naprava z oznako
ustreznosti tvori skupaj s temperaturnimi senzorji
ustrezen sistem zaščite z ozirom na zahtevani
temperaturni razred.
Elektromotorji z dvema hitrostma vrtenja (dvoje
ločenih navitij ali eno navitje v Dahlander stiku),
morajo biti zaščiteni za vsako hitrost posebej.
The tightening torque of the connections on the
terminal board must not exceed 7,5 Nm.
Prior to the mains connection, check the terminal
box for the following items:
- there must not be any dust, pieces of wire or other
foreign matters inside of the terminal box,
- the electrical connections must be carried out by
qualified persons and the screws must be tightened
correspondingly,
- that the mutual air distance is at least 10 mm for
voltages of 400 V or 690 V, or 14mm for 1000V
(for Exe version).
- that the unused wires are separated and fixed
accordingly,
- that the contacting surfaces are clean and slightly
lubricated with an acidfree grease,
-
that the cable is sealed correctly at the cable entry.
- the unused openings must be sealed so as to
guarantee that the flame-proof properties are
maintained. The means foreseen to achieve this goal
must be such so as to ensure that the sealing-plug
can only be removed with the help of a tool.
5.
PROTECTION OF THE ELECTRIC
MOTORS AND OPERATION
Succeeding the installation of the electric motors, all
rotating parts must be safely protected against
contacts.
Only qualified personnel may handle the machines!
In the S1-mode of operation, the motor circuit-
breaker is a sufficient device for the maintenance of
the temperature class. To do so, it must be regulated
to the rated current of the three-phase cage motor.
In both the S2- and S3- modes of operation and the
converter operation, the three-phase cage motors
must be equipped with 3 PTCs in each winding
(DIN 44080, DIN 44081, DIN 44082). The nominal
shutdown temperature of these PTCs are 145
o
C. A
corresponding shutdown device with the PTB mark
of conformity (Lab. 3.43) completes the protective
system for the maintenance of the temperature class