3UG3501 datasheet(64/114 Pages) ETC2

64 / 114 page

Monitoring Relays

3UG Monitoring Relays for Electrical and Additional Measurements

Line monitoring

7/64

Siemens LV 1 T · 2006

3UG45 13 monitoring relays

The 3UG45 13 line monitoring relay monitors three-phase

networks with regard to phase sequence, phase failure, phase

unbalance of 20 % and undervoltage. The device has an internal

power supply and works using the closed-circuit principle. The

hysteresis is 5 %. The integrated response delay time is

adjustable from 0 to 20 s and responds to undervoltage. If the

direction is incorrect, the device switches off immediately.

Thanks to a special measuring method, a phase failure is reliably

detected in spite of the wide voltage range from 160 to 690 V AC

and feedback through the load of up to 80 %. When the mains

supply is switched on, the green LED is lit. If the phase

sequence at the terminals L1-L2-L3 is correct, the output relay

picks up. If the phase sequence is wrong, the red LED flashes

and the output relay remains in its rest position. If a phase fails,

the red LED is permanently lit and the output relay drops.

Note:

The red LED is a fault diagnostic indicator and does not show the

current relay status. The 3UG45 13 monitoring relay is suitable

for line frequencies of 50/60 Hz.

Phase failure and undervoltage

Wrong phase sequence

3UG46 14 monitoring relays

The 3UG46 14 line monitoring relay has a wide voltage range

and an internal power supply. The device is equipped with a

display and is parameterized using three buttons. It monitors

three-phase networks with regard to phase unbalance from 5 to

20 %, phase failure, undervoltage and phase sequence. The

hysteresis is adjustable from 1 to 20 V. In addition, the device

has a response delay and ON delay from 0 to 20 s in each case.

The integrated response delay time responds to phase

unbalance and undervoltage. If the direction is incorrect, the

device switches off immediately. Thanks to a special measuring

method, a phase failure is reliably detected in spite of the wide

voltage range from 160 to 690 V AC and feedback through the

load.

The 3UG46 14 monitoring relay can be operated on the basis of

either the open-circuit or closed-circuit principle and with

manual or auto RESET.

With the closed-circuit principle selected

Wrong phase sequence

Phase failure

Undervoltage

Unbalance

NSB0_01569

11/14

-20%

L1-L2-L3

L2-L3

L1-L2-L3

3~U

11/12

21/24

21/22

LED rd

Delay

OFF

Hysteresis

Phase loss

11/14

L3-L2-L1

11/12

21/24

21/22

LED rd

FLASH

Phase sequence

OFF

11/14

L3-L2-L1

11/12

21/24

21/22

11/14

11/12

21/24

21/22

L1-L2-L3

L2-L3

L1-L2-L3

21/24

21/22

11/14

11/12

x-y

Hysteresis

Delay

onDelay

> Asy

21/24

21/22

11/14

11/12

Hysteresis

Delay

onDelay

3UG3501 数据表(PDF) 64 Page - List of Unclassifed Manufacturers

3UG3501 数据表(HTML) 64 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

3UG3501 数据表(PDF) 64 Page - List of Unclassifed Manufacturers

3UG3501 数据表(HTML) 64 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载