Siemens EF 73E Series Manual de usuario descargar pdf (Pagina 10)

Siemens Protection Devices Limited 10

Climatic Tests

50BF Circuit Breaker Fail

Operation Current check - Phase and

Measured Earth with

independent settings

Mechanical Trip

CB Faulty Monitor

Setting Range Is 0.05,0.055…2.0 x In

2 Stage Time Delays Timer 1 20…60000ms

Timer 2 20…60000ms

Operate Level 100% Is, ±5% or ±1%xIn

Disengaging time < 20ms

Operate time following

delay

Tcbf ±1% or ±2ms

Triggered by Any function mapped as trip

contact.

Inhibited by Binary or Virtual Input

Timer By pass Yes, 50BF CB Faulty Input

Temperature

IEC 60068-2-1/2

Operating Range

-10 °C to +55 °C

Storage range

-25 °C to +70 °C

Humidity

IEC 60068-2-3

Operational test

56 days at 40 °C and 95 %

relative humidity

60 Supervision

50 Instantaneous & DTL OC&EF

CT 7SR11 Current

Elements Phase, Derived Earth &

Measured Earth

Number of Elements

2 x 7SR11

4 x 7SR12

2 x OC

2 x Derived EF ‘N’

2 x Measured EF ‘G’

Setting Range Is 0.05,0.06…50 x In

Time Delay 0.00…14400s

Operate Level 100% Is, ±5% or ±1%xIn

Operate time:

50

50N

0 to 2xIs – 35ms, ±10ms,

0 to 5xIs – 25ms, ±10ms

0 to 2xIs – 40ms, ±10ms,

0 to 5xIs – 30ms, ±10ms

Operate time following

delay

Tbasic +td , ±1% or ±10ms

Inhibited by Binary or Virtual Input

64H Restricted Earth Fault

Setting Range 0.05…0.95xIn

Operate Level 100% Is, ±5% or ±1%xIn

Time Delay 0.00… 14400s

Basic Operate Time 0 to 2 xIs 45ms ±10ms

0 to 5 xIs 35ms ±10ms

Inhibited by Binary or Virtual Input

74T/CC Trip/Close Circuit Supervision

Number of supervisable

circuits

3 x Trip and 3 x Close

Number of BI’s Required 1 or 2 per function

51Time Delayed OC&EF (Directional)

CB Maintenance

Elements Phase, Derived Earth &

Measured Earth

Number of Elements

2 x 7SR11

2 x OC

2 x Derived EF ‘N’

2 x Measured EF ‘G’

Characteristic IEC NI,VI,EI,LTI ANSI MI,VI,EI &

DTL

Setting Range Is 0.05,0.1…2.5 x In

Time Multiplier 0.025,0.05…1.6

Time Delay 0,0.01… 20s

Operate Level 105% Is, ±4% or ±1%xIn

Minimum Operate time

IEC

ANSI

Trip Counter Total & Delta

0…10000

Counts to AR Block 0…10000

Frequent Operations 0…10000

I

2

t Alarm 10…100000

Performance

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op

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−

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1

α

Is

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TmB

A

t

P

Is

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⎦

⎤

⎢

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+

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1

± 5 % absolute or ± 30 ms

Follower Delay 0 - 20s

Reset ANSI decaying, 0 – 60s

Inhibited by Binary or Virtual Input

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