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P92x/EN TD/E11
Technical Guide
Technical Data
Page 12/30
MiCOM P921-P922-P923
3.2.3
Inverse Time Delay Characteristic
The inverse characteristic is defined by the following formula :
÷
÷
÷
÷
ø
ö
ç
ç
ç
ç
è
æ
-
=
1
Vs
V
TMS
t
where :
t
= operating time in seconds
TMS = time Multiplier Setting
V
= applied input voltage
Vs
= relay setting voltage
NOTE :
this equation is only valid for
Vs
V
ratio > than 1.1
Setting
Range
Step Size
TMS
0.5 – 100
0.5
Setting
Range
Step Size
TRESET (only DT)
0 – 100s
0,01s
When the V> is associated with IDMT curve, the recommended maximum setting
value should be less or equal to max. setting range divided by 20.
Summary of Contents for MiCOM P921
Page 1: ...MiCOM P921 P922 P923 Voltage and Frequency Relays Technical guide P92x EN T E11...
Page 2: ......
Page 4: ...P92x EN T00 E11 Technical Guide Content Page 2 2 MiCOM P921 P922 P923 BLANK PAGE...
Page 5: ...Technical Guide Px2xx EN SS A11 SAFETY SECTION SAFETY SECTION...
Page 6: ......
Page 8: ...Px2xx EN SS A11 Technical Guide SAFETY SECTION Page 2 6 BLANK PAGE...
Page 12: ...Px2xx EN SS A11 Technical Guide SAFETY SECTION Page 6 6 BLANK PAGE...
Page 13: ...Technical Guide P92x EN GS E11 MiCOM P921 P922 P923 aBCD Getting Started...
Page 14: ......
Page 16: ...P92x EN GS E11 Technical Guide Getting Started Page 2 18 MiCOM P921 P922 P923 aBCD BLANK PAGE...
Page 33: ...Technical Guide P92x EN CO E11 MiCOM P921 P922 P923 aBCD Connection Diagrams...
Page 34: ......
Page 45: ...Technical Guide P92x EN TD E11 MiCOM P921 P922 P923 Technical Data...
Page 46: ......
Page 50: ...P92x EN TD E11 Technical Guide Technical Data Page 4 30 MiCOM P921 P922 P923 BLANK PAGE...
Page 76: ...P92x EN TD E11 Technical Guide Technical Data Page 30 30 MiCOM P921 P922 P923 BLANK PAGE...
Page 77: ...Technical Guide P92x EN FT E11 MiCOM P921 P922 P923 User Guide...
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Page 258: ...P92x EN CT E11 Technical Guide Courier Database Page 68 118 MiCOM P921 P922 P923 BLANK PAGE...
Page 296: ...P92x EN CT E11 Technical Guide Courier Database Page 106 118 MiCOM P921 P922 P923 BLANK PAGE...
Page 298: ...P92x EN CT E11 Technical Guide IEC 60870 5 103 Page 108 118 MiCOM P921 P922 P923 BLANK PAGE...
Page 308: ...P92x EN CT E11 Technical Guide IEC 60870 5 103 Page 118 118 MiCOM P921 P922 P923 BLANK PAGE...
Page 309: ...Technical Guide P92x EN IN E11 MiCOM P921 P922 P923 abcd Installation...
Page 310: ......
Page 312: ...P92x EN IN E11 Technical Guide Installation Page 2 10 MiCOM P921 P922 P923 abcd BLANK PAGE...
Page 319: ...P92x EN IN E11 Technical Guide Installation Page 10 10 MiCOM P921 P922 P923 abcd BLANK PAGE...
Page 320: ...Technical Guide P92x EN CM E11 MiCOM P921 P922 P923 abcd Commissioning Guide...
Page 321: ......
Page 351: ...Technical Guide P92x EN RS E11 MiCOM P921 P922 P923 Test Report...
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Page 354: ...P92x EN RS E11 Technical Guide Test Report Page 2 22 MiCOM P921 P922 P923 BLANK PAGE...
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