Schneider Electric 3.0A, 2.0A, and 6.0A, 5.0A manual Set Time Delays, Set time delays, 22-EN

Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units	48049-136-05
Section 3—Operation	Rev. 01, 07/2012

ENGLISH

2. Set time delay.	Figure 30:				Set Time Delays
	06133215
			long time	(s) 4		12
				tr	8		alarm
		2				16
		1				20
			short time	.5 @ 6 Ir24
				tsd .4 .4 .3
		.3				.2
		.2				.1
		.1			2	0
				on	I t
					delay

tr = 1 s (at 6 x Ir)

tsd = 0.2 s I2t on

I2t on I2t off

t
06133217	tr
1 s
0.2 s	tsd
0	10 x Ir
6x Ir

Micrologic 6.0A Trip Unit

Figure 31: Set Pickup Levels

1. Set pickup levels.

06133357	Ir	long time				alarm
		.7	.8	.9
	.6			.95
	.5			.98
		.4	x In 1
	Is	short time			I	instantaneous
		3	4	5		6	8	10
	2.5			6		4		12
	2			8		3		15
		1.5 x Ir		1		2	x Inoff
		setting
	Ig		E
		D		F
	C			G
	B			H
		A		J
		ground fault

	t		Ir
	06133214
In = 2000 A
Ir = 0.7 x In = 1400 A			Isd
Ii = 6 x In = 12000 A				Ii
Isd = 2 x Ir = 2800 A	0
		1400A	2800A	12000A
06133359
	t

B￿Ig = 640 A

Ig

I

2. Set time delays.

0 640 A I

Figure 32: Set Pickup Levels

06133358

long time

tr		8
(s)	4	12
2		16
1		20
	.5 @ 6 Ir24

short time

tsd(s) .4 .4 .3

.3 .2

.2.1 0 .1 on I2t off

delay

(s)

tg .4 .4 .3

.3		.2
.2		.1
.1	2	0
on	I t	off

ground fault

alarm

tr = 1 s (at 6 x Ir)

instantaneous

tsd = 0.2 s I2t on

I2t on I2t off

tg = 0.2 s I2t on

t
06133217	tr
1 s
0.2 s	tsd
0	10 x Ir
6x Ir
t
06133361

tg

0.2 s

0I

I

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