xeffect residual current devices eaton.com xeffect

xEffect Residual Current Devices Eaton.com

xEffectxEffectRCDs for machines and equipment with electrical drives

2 EATON CORPORATION BR019004EN

Enhanced reliability in drive applications

Challenges for machine builders

Optimized interaction ofEaton drives and RCDs

The use of an RCD is an effective instrument for protection against electrical shock and fire prevention. Innovative electrical drive systems offer specific application solutions and improve the energy efficiency.In modern electrical equipments and machineries both components are used together in more and more cases.

Thereby it is mandatory to consider the compliance with all standards and regulations.Especial attention must be paid here on the usual technical compatibility problems between RCDs and electrical drive systems.Unwanted trips of the RCDs can happen during the normal operation because of

high system cause earth leackage currents which are generated in applications with frequency controlled drives. Increasing the level of the personal and equipment protection means very often a reduced system uptime.

Eaton takes up this problem and offers a complete solution from one hand. The interaction between Eaton drives and RCDs is harmonized. Unwanted trips because of system caused earth leakage currents will be avoided and a safe power disconnection in case of dangerous fault currents is guaranteed.

It is clearly recommended and in many cases already mandatory to use RCDs type F and Bfq for such applications.They give the possibility to offer a safe and reliable operation of the machine with a high system uptime.

To learn how harmonized RCDs and Eaton drive solutions can provide increased ener-gy efficiency with maximum productivity and machine uptime, down-load the Whitepaper here www.eaton.eu/en/cp/rcd


Residual Current Devices Type F

Definition

Field of Application

The type F RCD is defined according to IEC/EN 62423. It provides safe and reliable protection against sinusoidal residual currents and pulsating DC fault currents (like type A devices). It is also capable of handling residual currents with mixed frequencies of up to 1 kHz (10, 50, 1000 Hz) in accordance with the IEC 62423 standard.

Type F RCDs can accept smooth DC residual currents of up to 10 mA without

affecting their standard functionality, have a time delayed tripping and distinguish themselves from other devices thanks to their high resistance to power surges: this ensures minimal false tripping and a high degree of safety.

They are available as RCCBs (2-pole or 4-pole up to 100 A) as well as RCBOs (1N up to 40 A). With three versions for different protection levels (30 mA, 100 mA and 300 mA), the type F functionality is

voltage independent and can be used for fault and additional protection. As a result, the recommendations for installations including variable frequency drives have been modified.

Eaton also offers a digital version of the type F RCBO, which displays fault currents at the device in real time.

Type F residual current devices are de- signes specifically for use in applications with single phase frequency converters such as pumps, welding units, vibrators or hammer drills. In this type of application, residual currents with mixed frequencies can arise which residual current devices type AC and A are unable to cope with.

The detection of mixed frequencies and the higher load rating with DC residual cur-rents up to 10 mA enables the RCD type F to provide excellent protection for humans and the system in all applications which contain appliances and motors with single phase frequency converters.

The time delayed tripping and the high current withstands capability support in ad-dition avoiding nuisance tripping. Overall, the RCD type F enables machine builders and plant manufacturers to develop equipment that is extremely reliable while ensuring high safety levels for the operator and maintenance staff.

Benefits:

• Reliable protection for machines with 1 phase frequency converters

• Increased protection due to - detection of mixed frequencies - higher load rating with DC residual currents up to 10 mA

• Reduction of nuisance tripping thanks to - time delayed tripping - high current withstand capability


Residual Current Devices Type B, Bfq and B+

Definition

Field of Application

The RCCB type B detects (acc. to IEC 62423) beside AC and pulsating DC residual currents also smooth DC residual currents. With the extended sensitivity of the RCCB type B, electrical installers and machinery builders can increase the safety considerably in power distribution and machineries.

The special adapted tripping curve (non-sensitive against system caused earth leakage currents at high frequencies) of the RCCB type Bfq complies to the specifications of the RCCB type B and avoid in addition unwanted tripping in industrial applications which contain frequency converter controls.

The RCCB type B+ is sensitive to all residual currents and is additionally equipped with a tripping curve that limits the trip-ping current to max. 420 mA for frequen-cies up to 20 kHz. This complies additionally to the specifications for superior fire protection according to the German standard VDE 066-440 (formerly VVDEV 0664-110).

Smooth DC residual currents can occur in industrial, commercial and residential applications which contain photovoltaic systems, frequency converters or electron-ic consumers. In this kind of applications only RCCBs type B, Bfq or B+ can gua-rantee a safe protection for persons and equipment.

They are also equipped with a time de-layed tripping and a high current withstand capability to offer high reliability for the system.

RCCBs type Bfq with their special adapted tripping curve are the perfect choice for in-dustrial applications with 3 phase frequen-cy converters.

RCCBs type B+ are perfectly suitable for installers and machinery builders to in-crease safety in fire risk applications such as petrol stations, agriculture, paint shops, depots, warehouses and many more.

Benefits:

• Reliable protection for machines with 3 phase frequency converters

• Safe power disconnection at smooth DC and AC residual currents

• Detection of high frequency residual currents

• Highest system availability by digital technology and pre-warnings


RC

D T

ype

F

(acc

. to

IEC

624

23)

Sta

nd

ard

typ

e, m

ult

i-fr

equ

ency

re

sid

ual

cu

rren

ts u

p t

o 1

kH

z

RC

D T

ype

B

(acc

. to

IEC

624

23)

Sta

nd

ard

typ

e, s

ensi

tive

to

all

re

sid

ual

cu

rren

ts u

p t

o 1

kH

z

RC

D T

ype

Bfq

(a

cc. t

o IE

C 6

2423

)N

on

-sen

siti

ve a

gain

st s

yste

m

cau

sed

ear

th le

akag

e cu

rren

ts a

t h

igh

fre

qu

enci

es u

p t

o 5

0 kH

z

RC

D T

ype

B+

(acc

. to

VD

E 0

664-

400)

For

sup

erio

r fi

re p

rote

ctio

n

(max

. tri

pp

ing

cu

rren

t o

f 42

0 m

A

for

freq

uen

cies

up

to

20

kHz)

B+

Bfq

F B

Ap

plic

atio

ns

wit

h:

• A

pp

lian

ces

and

mo

tors

wit

h 1

ph

ase

freq

uen

cy c

onv

erte

rs w

ith

PFC

(Po

wer

Fac

tor

Co

mp

ensa

tio

n)

or

• 1

ph

ase

freq

uen

cy c

onv

erte

rs s

up

plie

d b

etw

een

ph

ase/

ph

ase

or

• 3

ph

ase

freq

uen

cy c

onv

erte

rs•

DC

sys

tem

s (p

ho

tovo

ltai

c sy

stem

s, U

PS

un

its…

)

Ap

plic

atio

ns

wit

h:

• A

pp

lian

ces

and

mo

tors

wit

h

1 p

has

e fr

equ

ency

co

nver

ters

(s

up

ply

: ph

ase/

neu

tral

)

• W

ash

ing

mac

hin

es, d

ish

was

her

s•

Hea

t p

um

ps

• M

oto

r ap

plic

atio

ns

•

Ven

tila

tio

n, c

oo

ling

an

d

air

con

dit

ion

ing

sys

tem

s •

Wel

din

g e

qu

ipm

ent

• et

c.

• P

V s

yste

ms

• B

atte

ry b

anks

• U

PS

un

its

• E

V c

har

gin

g•

Med

ical

dev

ices

• et

c.

Ind

ust

rial

ap

plic

atio

ns

wh

ich

co

nta

in h

igh

-po

wer

fre

qu

ency

co

nver

ter

con

tro

ls s

uch

as:

• 3

ph

ase

mo

tor

app

licat

ion

s•

Sp

eed

reg

ula

ted

mac

hin

e to

ols

Fire

ris

k ap

plic

atio

ns

such

as:

• Pe

tro

l sta

tio

ns

• A

gri

cult

ure

• Pa

int

sho

ps

• W

areh

ou

ses

• B

ioga

s p

lan

ts, e

tc.

• V

DE

066

4-40

0

!

Sele

ctio

n he

lp R

CDs T

ype

F /

Type

B


Poss

ible

resid

ual c

urre

nt w

avef

orm

s of a

pplic

atio

ns w

ith

frequ

ency

con

verte

rs an

d su

itabl

e RC

Ds

/ L/ F

1

t

/ L

t

/ F1

t

kH

z

B+

Bfq

FBSu

ita

ble

RC

CB

Typ

e

Circu

itL

oa

d C

urr

en

tR

esid

ua

l C

urr

en

t

1 2 3

N +

PE

/ L

L2

L3

L1

/ F2

/ M

~

–

M

/ F2

t

/ F2

t

/ L

t

/ F1

t

4

N PE

/ L

L1

/ F2

/ M

~

M

/ F2

t

N +

PE

/ L

L2

L1

/ F2

/ M

~

M

––

/ L

t

/ L

t

/ L

t

N PE

/ L

L

/ F2

/ F1

~

M

PFC

–

!

In g

ener

al, R

CD

s ty

pe F

are

des

igne

d fo

r ap

plic

atio

ns w

ith 1

pha

se f

requ

ency

co

nver

ters

. But

the

re a

re a

lso

1 ph

ase

FC d

esig

ns w

hich

req

uire

RC

D t

ype

B

prot

ectio

n.

RC

Ds

type

F a

re n

ot s

uita

ble

for

appl

i- an

ces

that

can

gen

erat

e sm

ooth

DC

re

sidu

al c

urre

nts,

e.g

. 1 p

hase

FC

with

P

FC o

r 1

phas

e FC

sup

plie

d be

twee

n ph

ase/

phas

e.

They

are

not

sui

tabl

e fo

r in

stal

latio

ns in

ne

twor

ks w

ith f

requ

enci

es t

hat

devi

ate

from

the

rat

ed f

requ

ency

50/

60 H

z (n

ot

at t

he o

utgo

ing

term

inal

of

a fr

eque

ncy

conv

erte

r).

Ele

ctric

al lo

ads

that

can

gen

erat

e sm

ooth

D

C r

esid

ual c

urre

nts

in t

he e

vent

of

a fa

ult

mus

t be

ass

igne

d to

the

ir ow

n ci

rcui

t w

ith

a un

iver

sal c

urre

nt-s

ensi

tive

resi

dual

cur

-re

nt p

rote

ctiv

e de

vice

(typ

e B

, typ

e B

fq

or t

ype

B+

).

Corre

ct in

stalla

tion

Sui

tabl

e R

CD

Ty

pe

C

ircui

t

Load

Cur

rent

R

esid

ual C

urre

nt

A/F

A/F

B/B

fq/B

+

300 m

A

30 m

A30 m

A

F FF

FB

/Bfq

/B+

300 m

A

30 m

A30 m

A30 m

A30 m

A

B/B

fq/B

+

FB

/Bfq

/B+

300 m

A

30 m

A30 m

A

A/F

A/F

B/B

fq/B

+

300 m

A

30 m

A30 m

A

F FF

FB

/Bfq

/B+

300 m

A

30 m

A30 m

A30 m

A30 m

A

B/B

fq/B

+

FB

/Bfq

/B+

300 m

A

30 m

A30 m

A


L/L

/FNPE

L/L

/FNPE

L/L

/FNPE

/L

NPE

/L

L2L1

/F

L3

N +PE

/L

L2L1

/F2

/M

~

/L

t

/L

ta

/F1

t

/F1

ta

/L /F1

/L

t

/F1

t

/L

L1L2L3

/L

/FNPE

/L

t

/F1

t

/F1

t

/L /F1

t

NPE

/L

L1

/F

L2

/L

t

/F1

t

/L

t

/F1

t

L/L

/FNPE

/L

t

/F1

t

kHz

B+

Bfq

FB

Suitable RCCB – Type Circuit Load Current Residual Current

A

1

2

3

9

10

11

12

13

14

AC

M

8

N +PE

/L

L2L3

L1

/F2

/M

~

–

M

/F2

t

/F2

t

L

/FNPE

/L

L

/F

N

PE

/L

L

/F

N

PE

t t

/L

t

/F1

t

/L

t

/F1

t

/L

ta

/F1

ta

4

5

6

7N

PE

/L

L1

/F2

/M

~

M

/F2

t

–

–

–

/L

t

/L

t

/L

tN

PE

/L

L

/F2/F1

~

M

PFC

–

The table shows the possible residual cur-rent waveforms and the suitable RCDs.

In general, RCDs type F are designed for applications with 1 phase frequency converters. But there are also 1 phase FC (frequency converters) designs which require RCD type B protection.

RCDs type F are not suitable for applica-tions that can generate smooth DC residu-

al currents, e.g. 1 phase FC with PFC or 1 phase FC supplied between phase/phase (see Table, Possible residual current waveforms and suitable RCDs, circuits 8 to 13).

They are not suitable for installations in networks with frequencies that deviate from the rated frequency 50/60 Hz (not at the outgoing terminal of a frequency converter).

Electrical loads that can generate smooth DC residual currents in the event of a fault must be assigned to their own circuit with a universal current-sensitive residual current protective device (type B, type Bfq or type B+).

For more details see Eaton Whitepaper „RCDs&Drives“.

Possible residual current waveforms and suitable RCDsCircuit Load Current Residual CurrentSuitable RCD - Type

4015081878369

Eaton Industries (Austria) GmbHScheydgasse 421210 ViennaAustria

Eaton hat sich das Ziel gesetzt, durch den Einsatz seiner Energiema-nagement-Technologien und -Dienstleistungen für mehr Lebensqualität zu sorgen und die Umwelt zu schützen. Die nachhaltigen Lösungen helfen den Kunden, elektrische, hydraulische und mechanische Energie sicherer, effizienter und zuverlässiger zu nutzen. Eaton erzielte im Jahr 2019 einen Umsatz von 21,4 Milliarden Dollar und verkauft Produkte in mehr als 175 Ländern. Weltweit arbeiten rund 95.000 Mitarbeitende bei Eaton. Weitere Informationen finden Sie unter Eaton.com.

Eaton EMEA HeadquartersRoute de la Longeraie 71110 Morges, Switzerland

© 2020 EatonAll Rights ReservedPrinted in Austria Publication No. BR019004ENArticle number 189841-MKMay 2020

Follow us on social media to get the latest product and support information.Eaton is a registered trademark.

All other trademarks are property of their respective owners.

To contact us please visit https://www.eaton.com/us/en-us/support/international-support-contacts.html For technical questions please contact your local Eaton team.

Changes to the products, to the information contained in thisdocument, and to prices are reserved; as are errors and omissions.Only order confirmations and technical documentation by Eaton isbinding. Photos and pictures also do not warrant a specific layout orfunctionality. Their use in whatever form is subject to prior approvalby Eaton. The same applies to trademarks (especially Eaton, Moeller,and Cutler-Hammer). The Terms and Conditions of Eaton apply, asreferenced on Eaton Internet pages and Eaton order confirmations.

xeffect residual current devices eaton.com xeffect

Documents