Black Box IC109A-R2 Manual de Instalação Página 132
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© 2007 Schneider Electric. All Rights Reserved.63230-216-229-B1
Commissioning
Checking Phase Current
Input Connections
For Differential Applications
Description
Perform this check to test differential applications
(machine, transformer or transformer-machine unit).
This test is carried out along with checking phase
current and phase voltage input wiring. The purpose is
to check the wiring of the second Sepam™ current
input.
Block Diagram
DE50710
DE50359
If the secondary circuits of the CTs do not
have the same ratings (1 and 5A or 5 and
1A) as the Sepam™ current inputs they are
connected to, set the injection value to the
lowest secondary rating. The value indicated for the
phase currents (Ia, Ib, Ic) or (I’a, I’b, I’c), is then equal
to the CT rated primary current divided by 5 (I
N/5).
Procedure
1 Connect the generator current terminals to the corresponding current test terminal
boxes according to the block diagram. Use the plugs provided.
2 Turn the generator on.
3 Adjust the generator current output, I, to match the CT rated secondary current (1A
or 5A).
4 Inject the generator output (as shown) into the phase 1 current input terminals of
each Sepam™ connector , and , connected in opposition (via the test
boxes, according to the diagram above).
5 Use the SFT2841 software to check the following:
b the value indicated for phase current Ia is approximately equal to the rated
primary current of the CT (In) wired to the Sepam™ connector
b the value indicated for phase current I’a is approximately equal to the rated
primary current of the CT (I’n) wired to the Sepam™ connector
b the value indicated for phase displacement θ(I, I’) between currents Ia and I’a is
equal to 0°
6 Check the Ib and I’b, Ic and I’c, and θ(I, I’) values as well the values between Ib-I’b
and Ic-I’c after transferring the injection plugs to the phase b current and then phase
c current input terminals of each of the Sepam™ connectors.
7 Turn the generator off.
a
B1
B2
B1
B2
- Series 80 1
- Protective Relays 1
- Safety Instructions 0 3
- Safety Instructions 8
- Before You Begin 8
- Introduction 10
- Modular Architecture 10
- Selection Table 11
- Technical Characteristics 13
- Environmental Characteristics 14
- Precautions 15
- Equipment Identification 16
- Main Units 18
- Accessories 19
- Replacement Equipment 20
- Base Unit 21
- Dimensions 21
- Mounting 22
- Connection 23
- Installing Terminal Guard 24
- Typical for Series 80 24
- CAUTION DANGER 25
- Installation 26
- Sepam™ B83 Connection Diagram 27
- Sepam™ C86 Connection Diagram 28
- Input for Sepam™ B80 34
- Connected Voltage Inputs 35
- 1A/5A Current Transformers 36
- Test Accessories 40
- CSH120 & CSH200 42
- Zero Sequence CT 42
- CSH30 Interposing Ring CT 44
- ACE990 Zero Sequence 47
- CT Interface 47
- Voltage Transformers 48
- MES120, MES120G, MES120H 50
- 14 Input/6 Output Modules 50
- Remote Modules 53
- MET1482 54
- Temperature Sensor Module 54
- Analog Output Module 56
- Remote Advanced UMI Module 58
- Sync-Check Module 60
- Communication Accessory 64
- Selection Guide 64
- Connection of Communication 65
- ACE937 Fiber Optic Interface 68
- ACE969TP and ACE969FO 69
- Multi-Protocol Interfaces 69
- Description 71
- RS232/RS485 Converter 74
- ACE919CA and ACE919CC 76
- RS485/RS485 Converters 76
- Communications Wiring 78
- Cable Pinouts 81
- Network Limits 82
- User-Machine Interfaces (UMI) 84
- User-Machine Interfaces 85
- DAMAGE TO CARTRIDGE 86
- CAUTION 87
- Local Operation on the UMI 88
- Password 91
- Settings 93
- SFT2841 Setup and Operating 96
- Welcome Window 96
- Connection Window 97
- SFT2841 Set Up and Operating 100
- Software 100
- General Screen Organization 100
- Using the Software 101
- Creating User Messages 102
- Disturbance Recording 103
- Logic-Equation Editing 104
- Program 105
- Default Settings 107
- Configuring Sepam™ 109
- SFT2841 Software 113
- Mimic-Diagram Editor 113
- Presentation 113
- Contents 123
- Principles 124
- Commissioning 125
- Equipment 126
- General Examination and 127
- Preliminary Actions 127
- Checking Input Connections 129
- 3-Phase Generator 129
- Single-Phase Generator & 130
- Voltages Delivered by 3 VT 130
- Checking Phase Current 132
- Input Connections 132
- For Differential Applications 132
- LPCT Type Current Sensors 133
- Checking Residual Current/ 134
- Voltage Input Connections 134
- Checking Residual Current 135
- Van = Vr 135
- Checking Residual Voltage 136
- Broken Delta Arrangement 136
- With Voltage Delivered by 137
- 1 Neutral Point VT 137
- Checking Sepam™ B80 138
- Additional Voltage 138
- Additional Voltage 139
- Checking Sepam™ B83 140
- Additional Phase Voltage 140
- Additional Residual Voltage 142
- Checking Sepam™ C86 143
- Unbalance Current 143
- Checking Logic Input & 144
- Output Connections 144
- Checking Optional 145
- Module Connections 145
- Validating the Complete 146
- Protection Chain 146
- Test Sheet 147
- Sepam™ Series 80 147
- Troubleshooting Assistance 152
- 152
- Replacing the Base Unit 156
- Replacing the Battery 156
- 3-Wire Power System 158
- 4-Wire Power System 159
- 63230-216-229-B1 161
- Schneider Electric USA 164
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