motor (faz) koruma röleleri

MOTOR (FAZ) KORUMA RÖLELERÝ
MKC-01, MKS-01, MKC-03, MKC-03P, MKS-03, MKC-04
Ba¤lant› Þemalar›
Genel
Sanayi tesislerimizde yayg›n olarak kullan›lan elektrik motorlar›n›n iki faza kalarak
aþ›r› ›s›nmas› ve yanmas› s›kça karþ›laþ›lan ar›za kaynaklar›ndan biridir. Motor
korumas›nda s›kça kullan›lan “termikmanyetik röle” gerek elektro-mekanik yap›s›,
gerekse demeraj ak›m›n›n karþ›lanabilmesi için ak›m ayar›n›n yüksek tutulmas›
nedeniyle, koruma iþleminde yetersiz kalmaktad›r.
Bu olumsuz etkileri ortadan kald›racak þekilde tasarlanm›þ olan “nötr’lü MKC-01,
MKS-01, MKC-03, MKC-03P, MKS-03” ve “nötr’süz MKC-04” Motor Koruma Röleleri
aþa¤›daki koruma fonksiyonlar›n› yerine getirir.
1- Gerilim Dengesizli¤i (Ayarlanamaz)
12 3
T1
MKC-01
MKC-03
Stop
T1
L2 N L3
MKS-01
MKS-03
MKC-04
Stop
C1
MKC-04’lerde nötr ba¤lant›s› yoktur.
Faz-Nötr aras› gerilim dengesizli¤i:
MKC-01, MKS-01 için (sabit) %20’den fazla
MKC-03, MKC-03P, MKS-03, MKC-04 için (sabit) %40’dan fazla
oldu¤u anda ç›k›þ rölesi motoru devreden ç›kart›r.
12 3
N L1
Start
L2
T1
C1
L3
C1
Start
N
L1
L2
L3
T1
C1
M
L1
L3
3 ~ L2
N
L3
M
3~
PK 25
PTC
T1
Stop
C1
Start
N L1 L2 L3
T1
C1
C1
N
Start
L1
L2
M
L3
3~
N L1 L2 L3
T1
C1
N
PTC
L1
L2
M
L3
3~
N
PK 28
Sabit Dengesizlik De¤eri
Histerisis
L1
L2
L3
Yanl›þ Faz S›ras›
Ç›k›þ Rölesi (MKC-01, MKS-01)
Ç›k›þ Rölesi (MKC-03, MKC-03P, MKS-03, MKC-04)
TD = Zaman Gecikmesi
Güvenli Kullaným ve Kurulum Ýçin Uyarýlar
Boyutlar
23mm
35mm
19mm
Aþaðýdaki talimatlara uyulmamasý halinde yaralanma veya ölümle sonuçlanabilecek
durumlar ortaya çýkabilir.
Cihaz üzerindeki herhangi bir iþlemden önce tüm besleme gerilimlerini kesiniz.
Cihaz þebekeye baðlý iken ön paneli çýkarmayýnýz.
Cihazý solvent veya benzeri maddelerle temizlemeyiniz. Cihazý temizlemek için
sadece kuru bez kullanýnýz.
Cihazý çalýþtýrmadan önce baðlantýlarýnýn doðru olduðunu kontrol ediniz.
Cihazý panoya monte ediniz.
Cihazýnýzdaki herhangi bir sorunda yetkili satýcýnýzla temas kurunuz.
Yukarýdaki önlemlerin uygulanmamasý sonucu doðabilecek istenmeyen
durumlardan üretici firma hiç bir þekilde sorumlu tutulamaz.
TiP PK22
90mm
Fonksiyon Diyagram›
61mm
Faz s›ras›n›n ters oldu¤u durumlarda (yani L1, L2, L3, saat yönünde de¤il ise) motor
devreye al›nmaz. Herhangi bir nedenle faz s›ras› bozulursa motor gecikmesiz olarak
devreden ç›kar›l›r.
Ýþletme Gerilimi (Un) : Lütfen cihaz etiketlerine bakýnýz.
: 3 faz ve nötr 220-230 VAC
4 kablo y›ld›z ba¤lant› (MKC-01, MKC-03, MKC-03P, MKS-01, MKS-03)
: 3 faz 380 VAC
3 kablo üçgen ba¤lant› (MKC-04)
: 3 faz 220 V AC
3 kablo üçgen baðlantý (MKC-04)
: (0.9-1.1) x Un (MKC-04, MKC-03P)
Ýþletme Aralýðý
(0.8-1.2) x Un (MKC-01, MKC-03, MKS-01, MKS-03)
: 50/60 Hz.
Ýþletme Frekansý
: 1 C/O, 8A, 250 V AC, 2000 VA, Cosϕ=1 (MKC-01, MKC-03, MKC-03P, MKC-04)
Kontak Tipi
1 NO, 8A, 250 V AC, 2000 VA, Cosϕ=1 (MKS-01, MKS-03)
: OUT LED’i : Röle çekili iken yanar, röle b›rakt›¤›
Uyarý LED’leri
zaman (hatal› durumunda) söner
ON LED’i : Besleme gerilimi varsa yanar (MKC-01, MKC-03, MKC-03P)
: 0.2 sn
Gecikme Zamaný
: -20 °C ; +55 °C
Ortam Sýcaklýðý
Depolama Sýcaklýðý :-40 °C ; +70 °C
: IP 20
Koruma Sýnýfý
: Tip PK 22 (MKS-01, MKS-03)
Boyutlar
Tip PK 25 (MKC-01, MKC-03, MKC-04)
Tip PK 28 ((MKC-01, MKC-03, MKC-03P)
: Pano içine dikey veya klemens ray›na.
Baðlantý Þekli
Panoya vida ile montaj adaptör parçasýyla mümkündür. (Bakýnýz Þekil 1)
: 0.08 kg. (MKS-01, MKS-03)
Aðýrlýk
0.1 kg. (MKC-01, MKC-03)
0.2 kg. (MKC-04, MKC-03P)
45mm
VRef = 220 VAC
2. Faz s›ras› (MKC-03, MKC-03P, MKS-03, MKC-04)
TD
MKC-03P
Teknik Bilgi
x 100
Gerilim dengesizli¤i motor sarg› s›cakl›¤›n›n belli bir miktar artmas›na ve dolay›s›yle
motor gücünün düþmesine neden olur.
TD
1 2 3
Stop
PK 28
VL2
3~
N
PK 22
MKC-01
MKC-03
VL1
V’L2
M
L3
PK 25
N
Asimetri % =
L2
1 2 3
Faz yokluðu veya herhangi bir sebepten oluþabilecek faz-nötr arasý gerilim
dengesizliði cihaz için belirlenen asimetri deðerinden küçükse çýkýþ rölesi çekilidir.
Eðer gerilim dengesizliði cihazýn asimetri deðerini aþarsa çýkýþ rölesi býrakýr ve motor
devre dýþý kalýr.
Uygulamalarýnýzda; motorun iki faza kalmasý esnasýnda motorun diðer sargýlarýndan
indüklenen gerilim deðerini de göz önünde bulundurarak uygun cihazý kullanýnýz.
V’L1 - V’L2
VRef
T1
C1
2
L1
L2
T1
V’L1
1
N
L1
Üç fazlý sistemlerde gerilim dengesizliði (asimetri);
Yüklerin fazlara dengesiz baðlanmasý sonucu oluþabileceði gibi,
Üç fazlý motorlarda fazlardan birinin kesilmesi durumunda da oluþur. Bu durumda
kesilen faza ait motor sargý ucunda, motorun diðer sargýlarý üzerinden indüklenerek
dönen gerilim görülür. Bu gerilim deðeri motorun cinsine ve yük durumuna göre
deðiþir.
VL3
L1
N
12mm
Þekil 1
28mm
19mm
48mm
58mm
48 mm
58 mm
32 mm
61.8 mm
TiP PK28
45.4 mm
35.3 mm
90 mm
45 mm
62 mm
TiP PK25
90 mm
34 mm
35 mm
3- PTC korumasý (MKC-03P)
100k
Motor sargý sýcaklý¤ý PTC’nin sýcaklýk
sýnýr de¤erini aþarsa motor geçikmesiz
olarak devreden çýkartýlýr. Cihazýn rölesi 10k
býrakýr, Röle LED’i söner.
1k
Bu özellik sadece MKC-03P’de yer
almaktadýr.De¤iþik sýcaklýk sýnýr de¤erlerine
(110 oC, 120 oC, 130 oC ) sahip üç PTC’nin
direnç - sýcaklýk de¤iþimleri yandaki þekilde 100
verilmektedir. PTC korumasý olan bir cihazda
PTC korumasý devre dýþý býrakýlmak
10
istenirse; cihaz üzerindeki PTC uçlarý
20 40 60 80 100 120 140160 180 200
kýsa devre yapýlmalýdýr
Sýcaklýk (0C)
35 mm
48 mm
59.7 mm
“Bu ürün, 30.05.2008 tarih ve 26891 sayýlý resmi gazetede yayýnlanan
EEE Yönetmeliðinin Madde 2 ve Ek-1A madde 9 kapsamýndadýr.”
A4908 / Rev.5
36 mm
PHASE FAILURE PROTECTION DEVICES
MKC-01, MKS-01, MKC-03, MKC-03P, MKS-03, MKC-04
General
Connection Diagram
One of the common faults faced in industrial plants is over-heating and burning of
3 phase motors due to the phase failure. “Thermic-magnetic device” which is an
essential element in motor protection is generally too slow due to both its electromechanical structure and the use of high current setting range to assure demarrage
without tripping. Being designed to eliminate the above disadvantages, MKC-01,
MKC-03 and MKC-03P Phase Failure Devices react within 0.2 seconds (fixed)
against the following faults and take the motor out of service.
12 3
T1
MKC-01
MKC-03
Stop
1. Voltage Unbalance (Not Adjustable)
Start
T1
L2 N L3
MKS-01
MKS-03
MKC-04
Stop
C1
MKC-01, MKC-03 and MKC-03P have neutral connection.
Unbalanced voltage for Phase-Neutral (fixed). When the value exceeds the 40% for
MKC-03, MKC-03P and MKC-04 or 20% for MKC-01 and MKS-01 output relay
switches-off the motor.
Unbalanced voltage may occured when;
The mains are loaded with unbalanced distribution,
One of the 3-phase of motor has lost. In this case, some amount of voltage which
produced by other phases will be inducted on the lost phase. Amount of this value
depends on both the motor type and amount of load.
Output relay is activated when a phase has lost or an unbalanced phase-neutral
value, which is occured with any reason, is smaller than the Asymetrical value which
is defined for the device. If this unbalanced voltage exceeds the adjusted Asymetrical
value, output will release itself and motor will be Switched-off.
In Applications; a proper device must be used regarding to the inducted voltage
value in two-phase which are remained after the other one has lost.
12 3
N L1
L2
T1
C1
L3
C1
Start
N
L1
L2
L3
T1
C1
L1
1
T1
C1
2
N
N
L1
L1
L2
M
L1
L3
3~
L2
M
L3
3~
N
PK 25
L2
M
L3
3~
N
PK 25
PK 22
1 2 3
PTC
T1
MKC-01
MKC-03
T1
Stop
1 2 3
MKC-03P
Stop
C1
VL1
Asymmetry % =
V’L1
V’L2
V’L1 - V’L2
VRef
Start
x 100
C1
N
Start
L2
M
L3
3~
N L1 L2 L3
T1
C1
N
PTC
L1
N
L2
M
L3
3~
N
VRef = 220 VAC
PK 28
PK 28
Technical Data
Rated Voltage (Un)
: Please look at labels on the device.
: 3 phase and neutral 220-230 VAC
4 Wires Star Connection (MKC-01, MKC-03, MKC-03P, MKS-01, MKS-03)
: 3 Phase 380 VAC
3 Wires Delta Connection (MKC-04)
: 3 Phase 220 V AC
3 Wires Delta Connection (MKC-04)
Operating Range
: (0.9-1.1) x Un (MKC-04, MKC-03P)
(0.8-1.2) x Un (MKC-01, MKC-03, MKS-01, MKS-03)
Rated Frequency
: 50/60 Hz.
Output Contacts
: 1 C/O, 8A, 250 V AC, 2000 VA, Cosϕ=1 (MKC-01, MKC-03, MKC-03P, MKC-04)
1 NO, 8A, 250 V AC, 2000 VA, Cosϕ=1 (MKS-01, MKS-03)
Warning LEDs
: LED output, normally ON (OFF for any fault)
ON LED’i: On when supply voltage is present (MKC-01, MKC-03, MKC-03P)
: 0.2 sec.
Tripping Time
Ambient Temperature : -20 °C ; +55 °C
Storage Temperature :-40 °C ; +70 °C
: IP 20
Protection Class
: Typ PK 22 (MKS-01, MKS-03)
Dimension
Typ PK 25 (MKC-01, MKC-03, MKC-04)
Typ PK 28 ((MKC-01, MKC-03, MKC-03P)
: Surface mounting or on the mounting rails.
Installation
Panel mounting with screws and adapter is possible. (Refer to Figure 1)
: 0.08 kg. (MKS-01, MKS-03)
Weight
0.1 kg. (MKC-01, MKC-03)
0.2 kg. (MKC-04, MKC-03P)
The voltage asymmetry causes the rise in motor temperature and a reduction of
the rated motor power.
2. Phase Sequence (MKC-03, MKC-03P, MKS-03, MKC-04)
When the phase sequence is correct (L1, L2, L3 in clockwise direction) the output
relay is activated; however, if the sequence is changed by any reason, the output
relay switches OFF immediately.
Function Diagram
Fixed unbalance value
Hysterisis
L1
L2
L3
Wrong Phases Sequence
Output Relay (MKC-01)
Output Relay (MKC-03, MKC-03P)
TD = Tripping Time
Precautions For Installation and Safe Use
Failure to follow those instructions will result in death or serious injury.
Disconnect all power before working on equipment.
When the device is connected to the network, do not remove the front panel.
Do not try to clean the device with solvent or the like. Only clean the device
with a dried cloth.
Verify correct terminal connections when wiring.
Electrical equipment should be serviced only by your compedent seller.
Mount device to the panel.
No responsibility is assured by the manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.
Dimensions
35mm
19mm
TYPE PK22
90mm
23mm
61mm
TD
45mm
TD
T1
C1
L1
VL2
VL3
N L1 L2 L3
12mm
Figure 1
3.PTC Protection (Only Available in MKC-03P versions)
28mm
48 mm
58mm
58 mm
34 mm
10k
61.8 mm
TYPE PK28
45.4 mm
35.3 mm
10
20 40 60 80 100 120 140160 180 200
90 mm
TYPE PK25
45 mm
62 mm
100
90 mm
1k
35 mm
When the coil temperature in motors exceeds
Tc, the limit temperature of PTC, the output
relay switches off immediately, Relay LED
turns OFF.
This feature is included only in MKC-03P.
See following figure for typical resistance of
PTC vs temperature characteristics for three
different swiching temperatures (110 oC, 120
oC, 130 oC). changed upon request. If you
want to disable the PTC protection of a device
with PTC protection, the PTC terminals on
the device must be short-circuited.
19mm
48mm
100k
Temperature (0C)
32 mm
35 mm
48 mm
59.7 mm
A4908 / Rev.5
36 mm