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66732943-021 021-66732945و فیوزهای فشار ضعیف

Safety

in

Focus

Safety

in

Focus

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66732943-021 021-66732945و مزایا و کاربردها

Fuses protect• Human life

• Electrical circuits

• Electrical products

• Electronics

• Cables and conductors

Product advantages• Very high switching capacity at very

small dimensions

• Effective current limitation

• very low peak currents

• Fine tuned discrimination

• Low power dissipation

• Very high reliability and resistance against aging

• Simple use

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66732943-021 021-66732945و NHساختار فیوز

NH Fuse handleNH Fuse handle

NH-Fuse Link

NH-Fuse Link

NH-Fuse Base

NH-Fuse Base

Indicator wire

Gripping lug

Gripping lug

indicator

M-effect material

Ceramic body

Melting strip

Quartz sand

Contact knife

Contact knife

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66732943-021 021-66732945و D,D0ساختار فیوز

Gauge Piece (Screw Gauge)

D-Fuse BaseScrew cap/fuse

carrier

D-fuse link

Melting strip

Touch protection cover

Melting strip

Gauge Piece (Ring Adapter)

D0-Fuse Base Screw cap/fuse carrier

D0-Fuse Base

Touch protection cover

D- FuseD- Fuse D0- FuseD0- Fuse

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66732943-021 021-66732945و IEC/EN 60 269استاتدارد

1. Letter

a = partial range

g = full range

2. Letter

G (L)=cable andconductor protection

M= Motor(switchgear) protection

R = Semiconductor protection

4x10-3

160

120

60

10

2

130

5

10

1500

100

50

10

4

m s

s

m in

-210

-110

010

110

210

310

410

st

1 2 4 6 8 10 20 40 60 100I/IN

H alb le ite r aR , gR

Scha ltgeräteschutz aM

K abe l- undLe itungsschutz gG (gL)

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66732943-021 021-66732945و عملکرد فیوز به هنگام اضافه بارواتصال کوتاه

Overload:Overload:

The M-effect material diffuses into the copper melting strip.

The melting temperature is lowered to

approx. 170 °C

Short circuit:Short circuit:

Due to the high heat of the current the copper melting strips melts on all constrictions

Melting temperature approx. 1083 °C

Limit of

Diffusibility

ms

s

min

NI NI(4...8)

Melting timecurrent-characteristic

OverloadtMelting TemperaturecM-effect ca. 170 °C

Short CircuittMelting TemperatureCopper 1083 °C,

t

Constrictions

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66732943-021 021-66732945و Mذوب فیوز و اثر

New Copper M-effect Material

New Cu

J p

Melting strip without M-effect

Melting strip without M-effect

Melting stripwith

M-effect

Melting stripwith

M-effect

J p

Interruption at approx. 1083 °C

J p

Interruption at approx.. 170 °C

J p

Überlast

alloy M-effect / Cu

J p

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66732943-021 021-66732945و

مراحل ذوب المان فیوز در هنگام اتصال کوتاه و اضافه بار

NH-fuse link size 00 / 63 A / AC 500Vcharacteristic gG acc. IEC 60269

Rated currentIn = 63 A

OverloadI5 = 126 A

Short circuitI2 = 5 kA

Short circuitI1 = 120 kA

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66732943-021 021-66732945و منحنی قطع

t

t

System Voltage

Arc Voltage

Arcing current

prospective Short Circuit Current

I

U

tS tLB

tA

tS

tLB

tA

Melting time

Arcing time

Cut off time

Max. Peak Current

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66732943-021 021-66732945و تمایز و جداسازی جریانهای خطا

ts tLt

t A

i 2 i 2

I ts2 I t2

Lt

t A

I t2A

In general:

Melting Value = f (I )I t s2

p

Cut off Value = f (I , U , cosI t2L )p n

Discrimination is reached, if:

The blue area is smaller than the orange area resp.

Cut off value of fuse 2

Melting Valueof fuse 1 >

>

I t2L

(Fuse 2)I t s2 (Fuse 1)Example:

100 A

I t2s

I t2A

= 7700 A s

= 103000 A s

= 180000 A s

2

2

2

I t2s = 24000 A s2

63 A

I t2A

Fuse 1 Fuse 2

63 A

63 A

63 A100 A

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66732943-021 021-66732945و

افزایش دما تابعی از زمان به هنگام اضافه بار

0

100

0

200

300

400

500 0.15

0.12

0.09

0.06

0.03

0103 2 •103 3 •103 4 •103

Tem

pera

ture

[°C

]

Diff

usio

n de

pth

[mm

]

Zeit [s]

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66732943-021 021-66732945و I 2tمنحنی

The fuse limits the peak current at short circuit

102103

104

2

4

6

8

105

2

4

6

8

2 4 6 8 103 2

Ieff

I2tSicherung

63 A

Schaltgerät63 A

4 6 8 104 2 4 6 8 105

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66732943-021 021-66732945و peakمحدودیت جریان

102

103

2

4

68

104

2

4

68

105

2

4

68

102 2 4 6 8 103

Ieff

ID

106

2

4

68

2 4 6 8 104 2 4 6 8 105

63 A

250 A

20 kA

56 kA

5 kA

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66732943-021 021-66732945و NHبیشینه جریان عبوری در فیوزهای

NH-Fuse links gG for general purpose AC 500 V und AC 690 V acc. IEC 60 269-2-1 Section I

Pa[W]

size 00

120

100

80

60

40

20

0

AC 690 V

AC 500 V

100 A

size 1

200 A

size 2

160 A

250 A

315 A

400 A

500 A

630 A

size 3 size 4a

1000 A 1250 A

A

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66732943-021 021-66732945و اتالف انرژی تابعی از افزایش جریان

NH-fuse link size 00, 100 A, gG, AC 500 V e.g. Pn = 6 W

F (

Load

Rel

atio

n I

/ In)

Load Relation I / In

example:

Pa bei IL = 60 A

60 A/100 A = 0,6 F(0,6)

F(0,6) = 0,31

Pa = F(0,6) x Pn

Pa = 0,31 x 6 = 1,86 W

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66732943-021 021-66732945و تجهیزات و تعاریف

Function

Making and Breaking Current Isolating Making and Breaking Current and Isolating

Switch Disconnector Switch disconnector

Fuse combination unit

Switch - Fuse Disconnector - fuse Switch-disconnector-fuse

Fuse-switch Fuse-disconnector Fuse-Switch-Disconnector

Utilization Category Typical applications

AC20B, DC20B Connecting and Disconnecting und no-load conditions

AC21B, DC21B Switching of resistive loads including moderate overloads

AC22B, DC22B Switching of mixed resistive and inductive loads, including moderate overloads (e.g. shunt motors)

AC23B, DC23B Switching of highly inductive loads (e.g. series motors)

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66732943-021 021-66732945و کاربردها

NH-Fuse Switch Disconnector

"gTr" Trafo

Protection

HV-FuseFuse Switch Combination

"gR/aR"

Semiconductor

Protection

"aM" Protection of

motor circuits

"gL/gG" Cable and Conductor Protection

"gB" Mining

Überstrom-relais > I

M

Special Application

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66732943-021 021-66732945و

NH-fuse base 1 and 3pole

NH-bus bar fuse base 1-pole

NH-bus bar fuse base 3pole

پالن کاربری

NH-fusw switch disconnector 1 and 3pole

NH-bus bar fuse switch disconnector 1pole

NH-fuse switch disconnecotr for Bus bar systems, 3-polef

NH-vertical fuse switch disconnectorfor busbar systems 3polie

NH-vertical fuse base for bus bar

NH-fuses

sizes: 000, 00, 1, 2, 3, 4 und 4a

NH-fuse switch disconnectorssizes: 000, 00, 1, 2, 3, 4a

NH- vertical fuse switch disconnectorssizes: 00, 1, 2, 3, 4a

NH-vertical fuse bases

sizes: 00, 1, 2, 3, 4a

Rated current: bis 100A, bis 160 A, bis 250A, bis 400A, bis 630A, bis 1250A

Rated voltage: AC 400 V, AC 500 V, AC 690 V

AufsteckgriffAbdeckung

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66732943-021 021-66732945و نگاه اجمالی بر فیوزهای فشار ضعیف

D0-Fuses

sizes: D01, D02, D03Gewinde: E14, E18, M30x1,5Ampere: 2-16A, 20-63A, 80-100ABemess.Spannung: AC 400 V DC 250 V

D0-Einbausicherungssockel Standard

Schraub-befestigung

Schnapp-befestigung

D0-Einbausicherungssockelmit Rahmenklemmen

D0-EinbausicherungssockelVBG4

D0-Reitersicherungssockel 3poligfür Sammelschienensystem

D0- Fuse Disconnector D0- Fuse Switch DisconnectorGrößen: D01, D02Gewinde: E14, E18Ampere: 2-16A, 20-63ABemess.Spannung: AC 400 V

D0-Trennschalter

D0-LasttrennschalterSchubladentechnik

D0-LasttrennschalterSchraubtechnik

D0-Reitersicherungs-Lasttrennschalter für Sammelschienensystem Adapter

Adapter

D0-Lasttrenn-schalter

D-Fuses

Größen: NDz, DII, DIII, DIV Gewinde: E16, E27, E33, R1¼" Ampere: 2-25A, 2-25A, 2-63A 80-100A Bemess.Spannung: AC 500 V DC 500 V

D-Einbausicherungssockel Standard

D-Reitersicherungssockelfür Sammelschiene

D-Reitersicherungssockel 3poligfür Sammelschienensystem

Schraub-befestigung

Schnapp-befestigung

D-Einbausicherungssockel

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66732943-021 021-66732945و IEC/EN استاتدارد

IEC/EN 60269-1IEC/EN 60269-1

IEC/EN 60269-2IEC/EN 60269-2

Part 2-1Part 2-1

IEC/EN 60269-3IEC/EN 60269-3

IEC/EN 60269-4IEC/EN 60269-4

Part 3-1Part 3-1

Low Voltage Fuses General Requirements

Additional Requirements for fuses for use by authorized persons

Examples of types of standardized versions

Fuses for use by unskilled persons

D-Fuse System/D0-Fuse system

Fuses for semiconductor protection

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66732943-021 021-66732945و حفاظت و کنترل

MONITORINGOf Fuse/Switch Combinations • Voltage Monitoring• Fuse operation (yes/no)• Switch Positionn(on/off)• Current Measurement• Phase Failure

A A A

L1 L3

13

Electronic Monitoring

14 21 22 N PE LSupply VoltageSignal contact

(C/O)

Relais

Supply voltage230 V / 50 - 60 Hz

L2

ElektronicSystem

LED-Anzeige

FailureF3F2F1

F1 F3 Elektronic-UnitF2