ENTES MKC-05, MKC-05P, MKC-06, MKC-06P User manual [ml]

Güvenli Kullaným ve Kurulum Ýçin Uyarýlar
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.

Genel

Sanayi tesislerimizde yaygýn olarak kullanýlan
elektrik motorlarýnýn iki faza kalarak aþýrý
ýsýnmasý ve yanmasý sýkça karþýlaþýlan arýza
kaynaklarýndan biridir. Motor korumasýnda
sýkça kullanýlan termik manyetik röle gerek
elektromekanik yapýsý, gerekse demeraj
akýmýnýn karþýlanabilmesi için akým ayarýnýn

KORUMA FONKSÝYONLARI :
1- Gerilim Dengesizli¤i (Ayarlanabilir veya kapatýlabilir) (MKC-05 / 05P / 06 / 06P)

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.
Faz yokluðu veya herhangi bir sebepten oluþabilecek faz-faz arasý gerilim dengesizliði
kullanýcýnýn ayarladýðý asimetri deðerinden küçükse çýkýþ rölesi çekilidir.
Eðer gerilim dengesizliði ayarlanan asimetri deðerini (%5-15) aþarsa; çýkýþ rölesi
ayarlanan zaman gecikmesi (0,1-20sn.) sonunda býrakýr ve motor devre dýþý kalýr.
Cihazýn rölesi býrakýr, röle LEDi söner, Asimetri Hatasý ikaz LEDi yanar. Eðer gerilim
dengesizliði zaman gecikmesi bitmeden ayarlanan deðerin altýna inerse çýkýþ rölesi
çekili kalýr ve motor devreden çýkartýlmaz.
Uygulamalarýnýzda; motorun iki faza kalmasý esnasýnda motorun diðer sargýlarýndan
indüklenen gerilim deðerini de göz önünde bulundurarak cihaz üzerinden uygun asimetri
deðerini ayarlayýnýz.

Gerilim dengesizli¤i motor sargý sýcaklý¤ýnýn belli bir miktar artmasýna ve dolayýsýyla
motor gücünün düþmesine neden olur.
Asimetri sýnýr de¤erleri kullanýcý tarafýndan %5 ile %15 arasýnda ayarlanabilir veya
kapatýlabilir. Histerisis ayarlanan asimetri deðerinin %30u dur.
Örnek : 3 x 380 Vluk þebekede %10 asimetri varsa tek fazdaki açma de¤eri
380-(10x400/100)=340 V olarak hesaplanýr. Böylece devreye alma de¤eri :
380-((10-(10x%30))x400/100)=353,2 V olacaktýr.

Faz sýrasý hatasý fonksiyon diagramý

2- Faz Sýrasý Korumasý
(MKC-05 / 05P / 06 / 06P ve FR-02):

Faz sýrasýnýn ters oldu¤u durumlarda
(L1, L2, L3 saat yönünde de¤il) motor
devreye alýnmaz. Herhangi bir nedenle
faz sýrasý bozulursa motor gecikmesiz
devreden çýkarýlýr. Cihazýn rölesi
býrakýr, Röle LEDi söner, faz sýrasý
hatasý ikaz LEDi yanar.

3-Faz Yokluðu Hatasý
(MKC-05 / 05P / 06 / 06P):

Herhangi bir sebepten dolayý
fazlardan biri Faz yokluðu eþiði
(Unx0.5)in altýna düþerse Phs.Seq. ­ Asm. ýþýklarý ayný anda yanar ve röle
gecikmesiz býrakýr.

A5049 Rev.2

Baðlantý Þemalarý

Boyutlar (mm)

Bu ürün, 30.05.2008 tarih ve 26891 sayýlý resmi gazetede yayýnlanan
EEE Yönetmeliðinin Madde 2 ve Ek-1A madde 9 kapsamýndadýr.

TEKNÝK ÖZELLÝKLER

: 48 ... 63 Hz. MKC-05 / 06, FR-02
: 50/60 Hz. MKC-05P / 06P
: 30 VA / 2 W (50 Hz.)
: True RMS

: % 5...15 (Nötrlü / Nötrsüz) Kapatýlabilir.
: Ayarlanan asimetri deðerinin %30u
: 0.1 ... 20 sn.
: 0.1 ... 20 sn.
: ± %3
: ± %0.5
: ± %5 + 100 msn
: ± %3

: 1 Enversör, 8A, 250V, 2000VA (Cosj=1)
: 10

5

: 10

7

: -5°C ... +55°C
: <%90 (Yoðunlaþma olmadan)

: 4mm² (12AWG)

stranded/örgülü rijit kablo

: 6mm² (10AWG) solid/som iletken kablo
: 2x2.5mm² (14AWG) solid/som iletken kablo
: 0.5 Nm (4.5in.lbs)

Ölçme ve Besleme Devresi

: 230V AC MKC-05 / 05P, FR-02
: 400V AC MKC-06 / 06P
: 150...300V AC MKC-05 / 05P, FR-02
: 270...510V AC MKC-06 / 06P

Ýþletme Gerilimi (Un)

Ýþletme Gerilimi Aralýðý (

U

)

Ýþletme Frekansý

Güç Tüketimi (max.)
Ölçüm Yöntemi

Ayarlar

Asimetri Ayar Aralýðý (asm. %)
Histeresis
Býrakma Gecikmesi (Delay)
Çekme Gecikmesi (Reset Delay)
Gerilim Ayar Doðruluðu
Tekrarlama Doðruluðu (Gerilim)
Ayarlanan Zamanlarýn Doðruluðu
Tekrarlama Doðruluðu (Zaman)

Çýkýþ

Çýkýþ Tipi
Elektriksel Ömür
Mekanik Ömür

Çevresel Þartlar

Çalýþma Sýcaklýðý
Baðýl Nem

Baðlantý

Klemens için Kablo Kesitleri

Vida Sýkma Kuvveti

: Pano içine dikey veya klemens rayýna.
: Plastik UL 94 V0 a uygun
: IP 20 (Terminaller), IP 40 (Ön panel)
: Tip PK 28
: 100 gr. (Sadece MKC-05P / 06Pde 200gr.)

: 400 V
: Aþma Gerilimi Kategorisi III
Kirlilik Derecesi 3
: 4 kV 1.2 / 50 uS
: 2 kV AC 50 Hz. 1 dk.
: >500 MOHM / 500 V DC

: Ürün standardý
: Baðýþýklýk
: Emisyon

LVD
EMC

Gövde

Montaj
Malzeme Cinsi
Koruma Sýnýfý
Boyutlar
Aðýrlýk

Ýzolasyon

Yalýtým Gerilimi (EN 60255-5)
Yalýtým Koordinasyonu
(EN 60255-5)
Ani Darbe Gerilimi (EN 60255-5)
Dielektrik Dayanýmý (EN 60255-5)
Yalýtým Direnci (EN 60255-5)

Uyulan Standartlar

EN-60255-6
EN-61000-6-2
EN-61000-6-3, EN-61000-6-4

Uyumlandýrýlacak Direktif / Yönetmelikler

73/23/EEC
89/336/EEC

VL3

V

Ref

= 400 VAC
(380 VAC MKC-06P)

VL12

VL31

VL31 VL12

VL23

NötrsüzNötrlü

V

Ref

= 230 VAC
(220 VAC MKC-05P)

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

N

C

1

N

L1 L2 L3

FR-02
MKC-05

1 2 3

N

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

C

1

N

L1 L2 L3

MKC-06

1 2 3

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

N

C

1

N

L1 L2 L3

MKC-05P

1 2 3

PTC

PTC

N

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

C

1

N

L1 L2 L3

MKC-06P

1 2 3

PTC

PTC

TÝP PK 28

3- PTC korumasý (MKC-05P / 06P)

100k

10k

1k

100

10

20 40 60 80 100 120 140160 180 200

Sýcaklýk (0C)

R(W)

Motor sargý sýcaklý¤ý PTCnin sýcaklýk
sýnýr de¤erini aþarsa motor geçikmesiz
olarak devreden çýkartýlýr. Cihazýn rölesi
býrakýr, Röle LEDi söner.
Bu özellik sadece MKC-05P ve MKC-06P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 verilmektedir.
PTC korumasý olan bir cihazda PTC
korumasý devre dýþý býrakýlmak
istenirse; cihaz üzerindeki PTC uçlarý
kýsa devre yapýlmalýdýr

NC

C NO

N L1 L2 L3

1 2 3

Off

321

OUT

ONAsm.Phs. Seq.

%

Asm.

Reset
Delay

(s)

Delay

(s)

Röle çýkýþý

Besleme / ölçme giriþleri

Asimetri ayarý

Çekme gecikmesi ayarý

Asimetri hatasэ эюэрэ

Faz sэrasэ ikaz эюэрэ

Besleme эюэрэ

Rцle эюэрэ

Býrakma gecikmesi ayarý

yüksek tutulmasý nedeniyle, koruma iþleminde yetersiz kalmaktadýr.
3 fazlý nötrlü (nötrsüz) sistemlerde korunmasý istenilen ekipmaný; faz hatasý, gerilim
dengesizliði(asimetri) ve faz sýrasýnýn ters baðlanmasýna karþý korumak için tasarlanmýþ
MKC-05-05P,MKC-06-06P ve FR-02 motor koruma röleleri aþaðýdaki fonksiyonlarý yerine
getirmek için tasarlanmýþtýr.

Kullaným ve Çalýþma Prensibi

Ön paneldeki asimetri (%asm.) ayar düðmesi kullanýlarak korunacak olan sistemin üst
asimetri deðeri belirlenir. Sistemdeki dengesizlik(asimetri) ayarlanan deðerin üstüne
çýkarsa cihaz býrakma gecikmesi (Delay) kadar bekler ve bu süre sonunda dengesizlik
hala devam ediyorsa cihazýn rölesi býrakýlýr (OUT ledi söner ve Asm. Led'i yanar).
Sistemdeki dengesizlik ayarlanan deðerin altýna düþtüðünde ise cihaz çekme gecikmesi
(Reset Delay) kadar bekler ve bu süre sonunda dengesizlik hala ayarlanan deðerin
altýnda ise cihazýn rölesi çeker (OUT ledi yanar ve Asm. Led'i söner).

NÖTRLÜ ÜRÜNLERDE NÖTR BAÐLANTISININ KOPMASI (MKC-05/05P/FR-02):

Nötrlü ürünlerde Faz-Nötr arasý ölçüm yapýlmaktadýr. Nötr kablosu
koparsa; asimetrik faz yüklenmesi sonucu oluþan nötr noktasýnda bir
kayma meydana gelir. Cihaz ölçümlerini kaymýþ olan nötr noktasýna göre
yapmaya devam eder. MKC-05P Nötr ve L3 fazý arasýndan beslenir
nötrün kopmasý cihazýn enerjisinin kesilmesine ve rölesinin býrakmasýna
neden olur.

4- Yetersiz Besleme Voltajý

(MKC-05 / 05P / 06 / 06P ve FR-02 )

MKC-05/06 3 Fazdan kapasitif beslemelidir. bu cihazlarda besleme voltajý 3 fazdan
gelen gerilimin ortalamasýna eþittir. MKC-05P/06P trafoludur. Eðer 3 fazdan gelen
gerilimin ortalamasý (MKC-05P ile MKC-06P cihazlarýnda L3 fazý) iþletme geriliminin
yarýsýndan az olursa cihaz yetersiz besleme uyarýsý verir (asm. Ve Phs. Seq. Ledleri
sýrasý ile yanýp sönerek flaþör yapar) ve röle gecikmesiz býrakýlýr.

MKC-05 ve FR-02 Nötrlü => (VL1+VL2+VL3)/3 < 115 VAC (F-N)
MKC-05P => VL3< 110 VAC (F-N)
MKC-06 Nötrsüz => (VL12+VL23+VL31)/3 < 200 VAC (F-F)
MKC-06P => VL31< 190 VAC (F-F)

ON

Asm.

Phs. Seq.

OUT

3

1

2

Faz Hatasý

}

Faz Sýrasý Hatasý

L1, L2, L3

L3, L2, L1

Cihaz Iþýklarýnýn anlamlarý

Gerilim(ler) ayarlanan sýnýrlarýn içinde

Gerilimler ayarlanan sýnýrlarýn dýþýnda

Faz hatasý uyarýsý

On

Out

Gerilimler ayarlanan sýnýrlarýn dýþýnda
(gecikme zamaný bekleniyor)

Faz sýrasý hatasý uyarýsý

Yetersiz besleme uyarýsý

:Flaþör:Iþýk sönük:Iþýk yanýk

Phs.

Seq.

Asm.

PTC hatasý

MOTOR (FAZ) KORUMA RÖLELERÝ

MKC-05, MKC-05P, MKC-06, MKC-06P ve FR-02

TR

VL1
VL1

VL2

VL2

V

Ref

x 100

Asimetri % =

V

Ref

x 100

Asimetri % =

Mak(FN) - Min(FN) Mak(FF) - Min(FF)

PHASE FAILURE DEVICES

MKC-05, MKC-05P, MKC-06, MKC-06P and FR-02

A5049 Rev.2

EN

The voltage asymmetry causes the rise in motor temperature and a reduction of the
rated motor power.
Voltage asymmetry limit values can be adjusted between 5%-15% by the user or can
be disabled. Hysteresis is 30% of the adjusted asymmetry value.
Example: Given 3x380 V supply with 10% asymmetry,
Relay switches OFF at: 380-(10x400/100)=340 V
Relay switches ON at: 380-((10-(10x%30))x400/100)=353,2 V

Phase Sequence Fault Function Diagram

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. Relay LED is OFF, Phase
Sequence error LED turns ON.

3-Lost Phase Fault
(MKC-05 / 05P / 06 / 06P):

If the value for any of the phases drop
down the lost phase limit
value(Unx0.5), Phs.Seq. - Asm. LEDs

turn on simultaneously and the relay
breaks contact wthout delay.

4- Insufficient Supply Voltage

(MKC-05 / 05P / 06 / 06P and FR-02 )

In devices which are supplied from a 3 phase capacitive source(MKC-05/06), the
supply voltage is the mean value of voltages from all three phases. If this mean value
(L3 phase for MKC-05P/06P devices) is less than half the supply voltage, the relay
gives an insufficient supply voltage warning(asm. and Phs. Seq. LEDs flash alternately)

and the relay breaks contact without delay.
MKC-05 and FR-02 with Neutral => (VL1+VL2+VL3)/3 < 115 VAC (P-N)
MKC-05P => VL3< 110 VAC (P-N)
MKC-06 without Neutral => (VL12+VL23+VL31)/3 < 200 VAC (P-P)
MKC-06P => VL31< 190 VAC (P-P)

ON

Asm.

Phs. Seq.

OUT

3

1

2

Phase

Failure

}

Phase Sequence
Fault

L1, L2, L3

L3, L2, L1

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 before operation.
Mount device to the panel.

Electrical equipment should be serviced only by your compedent seller.

No responsibility is assured by the manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.

General

One of the common faults encountered in
industrial plants is the overheating and the
resulting damaging of the 3-phase motors
due to the phase failure. Thermal-magnetic

relay which is an essential element in motor
protection is generally too slow to assure

demurrage without tripping due to both its

PROTECTION FEATURES :
1- Voltage Unbalance (Can be Adjusted or Disabled) (MKC-05 / 05P / 06 / 06P)

Unbalanced voltage(asymmetry) may occur when;
The mains are loaded with unbalanced distribution,
One of the 3 phases of the motor has lost. In this case, some amount of voltage
which is produced by other phases will be induced on the lost phase. Amount of this
voltage depends on both the motor type and amount of load.
Output relay is making contact when a phase has been lost or an unbalanced Phase­Phase voltage value, which is occured for any reason, is smaller than the user defined
asymetrical value. If this unbalanced voltage value exceeds the adjusted asymetrical
value(5-15%); output relay will break contact and switch off the motor at the end
of adjusted time delay(0.1-20 sec.); relays LED on the front panel is turned off. Asymmetry
error LED is turned ON. If the fault disappears within the delay time, the output relay
will not break contact and will not switch off the motor.
In applications; a proper asymetrical value should be adjusted considering the
induced voltage value in two-phase which are remained after the other one has
lost.

electromechanical structure and the use of high current setting range.MKC-05-05P,
MKC-06-06P and FR-02 Motor Protection Relays which are designed to protect the
desired equipment against phase failure, asymmetry and phase sequence failure on
3 phase systems with or without neutral connection, are manufactured to serve the
following purposes.

Utilisation and Working Principle

By using the asymmetry adjustment knob(%asm.) on the front panel, the upper
asymmetry limit of the system which will be protected is determined. If the unbalance
on the system(asymmetry) exceeds the adjusted value, the device waits as long as
the Delay-OFF time(Delay) and if the unbalance is still over the adjusted value, the
relay of the device breaks contact(OUT LED turns off and Asm. LED turns on). If the
unbalance on the system(asymmetry) falls under the adjusted value, the device waits
as long as the Delay-ON time(Reset Delay) and if the unbalance is still under the
adjusted value, the relay of the device makes contact(OUT LED turns on and Asm.
LED turns off).

V

L3

V

Ref

= 400 VAC
(380 VAC MKC-06P)

V

L12

V

L31

V

L31VL12

V

L23

Without NeutralWith Neutral

V

Ref

= 230 VAC
(220 VAC MKC-05P)

Meanings of the Device LEDs

On

Out

:Flashing:LED OFF:LED ON

Phs.

Seq.

Asm.

PTC fault

Phase Fault Warning

Phase Sequence Fault Warning

Unsufficient Supply Warning

NC

C NO

N L1 L2 L3

1 2 3

Off

321

OUT

ONAsm.Phs. Seq.

%

Asm.

Reset
Delay

(s)

Delay

(s)

Relay Output

Supply / Measurement

Inputs

Asymmetry Adjustment

Delay-ON Adjustment

Asymmetry Warning LED

Phase Sequence

Warning LED

Supply LED

Relay LED

Delay-OFF Adjustment

Voltage(s) is(are) within adjusted limits

Voltage(s) is(are) out of adjusted limits

Voltage(s) is(are) out of adjusted limits
(Delay time waiting)

3- PTC Protection (MKC-05P / 06P)

100k

10k

1k

100

10

20 40 60 80 100 120 140160 180 200

Temperature (0C)

R(W)

If motor coil temperature exceeds the
temperature limit of PTC, the motor is
disconnected immediately. The output relay
is opened and Relay LED turns off.
This feature is only available for MKC-05P
and MKC-06P. Resistance-Temperature
values for three PTC with different temperature
limit values (110 oC, 120 oC, 130 oC )
are shown on the figure on the right.
If you want to cancel PTC protection on a
device with PTC protection feature, the PTC
terminals on the device should be short­circuited.

BREAK OF THE NEUTRAL CONNECTION FOR DEVICES WITH NEUTRAL
(MKC-05/05P/FR-02):

In devices with neutral, Phase-Neutral measurements are taken. If the
neutral cable breaks, the neutral point of the system shifts because of
the asymmetrical phase loading. The device continues the take
measurements according to the shifted neutral system point. MKC-05P
is supplied from Neutral and L3 Phase. Break of neutral cable causes
the device to lose supply and the relay to open.

Connection Diagrams

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

N

C

1

N

L1 L2 L3

FR-02
MKC-05

1 2 3

N

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

C

1

N

L1 L2 L3

MKC-06

1 2 3

Dimensions (mm)

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

N

C

1

N

L1 L2 L3

MKC-05P

1 2 3

PTC

PTC

N

C

1

T

1

Stop

T

1

M

3 ~

Start

L1
L2
L3

C

1

N

L1 L2 L3

MKC-06P

1 2 3

PTC

PTC

TYP PK 28

TECHNICAL PROPERTIES

: 48 ... 63 Hz. MKC-05 / 06, FR-02
: 50/60 Hz. MKC-05P / 06P
: 30 VA / 2 W (50 Hz.)
: True RMS

: 5%...15% (With/Without Neutral) Can be disabled.
:

30% of the adjusted asymmetry value

: 0.1 ... 20 sec.
: 0.1 ... 20 sec.
: ± 3%
: ± 0.5%
: ± 5% + 100 msec.
: ± 3%

: 1 Change-over(CO) Contact, 8A, 250V, 2000VA (Cosj=1)
: 10

5

: 10

7

: -5°C ... +55°C
: <%90 (without condensation)

: 4mm² (12AWG) stranded rigid cable
: 6mm² (10AWG) solid conductor cable
: 2x2.5mm² (14AWG) solid conductor cable
: 0.5 Nm (4.5in.lbs)

Measurement and Supply Circuit

: 230V AC MKC-05 / 05P, FR-02
: 400V AC MKC-06 / 06P
: 150...300V AC MKC-05 / 05P, FR-02
: 270...510V AC MKC-06 / 06P

: Inside the panel vertically or on to the rail
: Plastic Compliant with UL 94 VO
: IP 20 (Terminals), IP 40 (Front Panel)
: Type PK 28
: 100 gr. Only MKC-05P / 06P 200gr

: 400 V
: Exceeding Voltage Category III,
Pollution Degree 3
: 4 kV 1.2 / 50 uS
: 2 kV AC 50 Hz. 1 minute.
: >500 MOHM / 500 V DC

: Product Standard
: Immunity
: Emission

LVD
EMC

Supply Voltage (Un)

Supply Voltage Gap (

U

)

Supply Frequency

Power Consumption (max.)
Measurement Method

Settings

Asymmetry Adjustment Range(asm. %)
Hysteresis
Delay-Off(Delay)
Delay-On(Reset Delay)
Voltage Adjustment Accuracy
Repetition Accuracy(Voltage)
Accuracy of the Set Times
Repetition Accuracy(Time)

Output

Output Type
Electrical Life
Mechanical Life

Ambiant Conditions

Operating Temperature
Relative Humidity

Connection

Cable Cross-sections for Terminals

Screw-On Force

Body

Installation
Material Type
Protection Class
Dimensions
Weight

Isolation

Isolation Voltage (EN 60255-5)
Isolation Coordination
(EN 60255-5)
Instant Burst Voltage (EN 60255-5)
Dielectric Resistance (EN 60255-5)
Isolation Resistance (EN 60255-5)

Followed Standards

EN-60255-6
EN-61000-6-2
EN-61000-6-3, EN-61000-6-4

Directives/Regulations To Be Followed

73/23/EEC
89/336/EEC

2- Phase Sequence Protection
(MKC-05 / 05P / 06 / 06P and FR-02):

V

L1

V

L1

V

L2

V

L2

V

Ref

x 100

Asymmetry % =

V

Ref

x 100

Asymmetry % =

Max(PN) - Min(PN) Max(PP) - Min(PP)

Vertrieb durch TDE Instruments GmbH