48049-136-05

Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units

Rev. 01, 07/2012

Section 3—Operation

 

 

2. Set time delay.

Figure 26:

Set Time Delay

 

06133211

 

 

 

 

 

 

 

 

 

 

 

 

 

 

long time

(s)

4 12

alarm

 

 

 

 

 

 

tr

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

16

 

 

 

 

 

 

 

 

 

1

20

 

 

 

 

 

 

 

 

 

 

 

 

.5 @ 6 Ir24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tr = 1 s (at 6 x Ir)

t

 

06133212

 

1 s

tr

0

6

 

x Ir

I

ENGLISH

Micrologic 3.0A Trip Unit

1. Set pickup levels.

Figure 27: Set Pickup Levels

06133209

long time

Ir

.8

alarm

.7

.9

 

.6

 

.95

 

.5

 

.98

 

.4 x In 1

 

instantaneous

 

Ii

5

 

 

4

6

 

3

 

8

 

2

 

10

 

1.5

x In

12

 

 

 

 

setting

In = 2000 A

Ir = 0.7 x In = 1400 A

Ii = 3 x In = 6000 A

06133210

t

Ir

 

Ii

0

6000 A

1400A

I

2. Set time delay.

Figure 28: Set Time Delay

06133211

 

 

long time

(s)

4

 

12

alarm

 

 

 

tr

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

216

1 20

.5 @ 6 Ir24

tr = 1 s (at 6 x Ir)

t

 

06133212

 

1 s

tr

0

6

 

x Ir

I

Micrologic 5.0A Trip Unit

Figure 29: Set Pickup Levels

1. Set pickup levels.

06133213

long time

 

 

 

 

Ir

.8

 

 

alarm

 

.7

.9

 

 

 

 

 

.6

 

.95

 

 

 

 

 

.5

 

.98

 

 

 

 

 

.4

x In 1

 

 

 

 

 

short time

 

instantaneous

 

Isd

4

5

 

I i

8

10

 

3

 

6

 

 

 

 

 

2.5

 

6

 

4

 

12

 

2

 

8

 

3

 

15

 

1.5

x Ir

10

off

2

 

off

 

 

 

 

x In

 

setting

 

 

 

 

In = 2000 A

Ir = 0.7 x In = 1400 A

Ii = 6 x In = 12000 A

Isd = 2 x Ir = 2800 A

t

Ir

 

06133214

 

 

 

 

 

Isd

 

 

Ii

0

 

12000 A

1400A

2800 A

I

© 1999–2012 Schneider Electric All Rights Reserved

21-EN

Page 23
Image 23
Schneider Electric 5.0A, 3.0A, 2.0A, and 6.0A manual Set time delay, Set Time Delay, Rev , 07/2012 Operation, 21-EN