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© 2007 Schneider Electric. All Rights Reserved.
63230-216-229-B1
Installation
Base Unit
Connecting Phase Current Inputs
Variant 1: Measuring Phase Current by three - 1A or 5A CTs (Standard Connection)
DE80089
Description
Connecting three - 1A or 5A sensors to the CCA630 or CCA634 connector.
Calculate residual current by measuring the three-phase currents.
Parameters
Sensor type 5A CT or 1A CT
Number of CTs Ia, Ib, Ic
Rated Current (I
N) 1A to 6250 A
Variant 2: Measuring Phase Current by two - 1A or 5A CTs
DE80088
Description
Connecting two - 1A or 5A sensors to the CCA630 or CCA634 connector. All
protection functions are based on monitoring phase A and phase C currents.
Phase current IB is assessed only for metering functions (assuming Ir = 0).
The user cannot calculate residual current or use ANSI 87T and 87M differential
protection functions on the Sepam™ T87, M87, M88, G87 and G88 under this
configuration.
Parameters
Sensor type 5A CT or 1A CT
Number of CTs Ia, Ic
Rated Current (I
N) 1A to 6250 A
CCA630/
CCA634
Ib
Ic
a
b
c
Ia
CCA630/
CCA634
a
b
c
Ia
Ib
Ic
Variant 3: Measuring Phase Current with three LPCT Type Sensors
DE51790
Description
The CCA671 Connector uses three Low Power Current Transducer (LPCT) type
sensors to keep Sepam™ from going into a fail-safe condition.
There are three sets of Dual In-Line (DIP) switches, shown at the bottom of the
CCA671 example to the left, one set for each phase. Each of these is set for the Full
Load Amps (FLA) for that phase.
Calculate residual currentby measuring the three phase currents Ia, Ib, and Ic. They
are measured by 3 x 1A or 5A CTs or by three LPCT type sensors.
LPCT sensors cannot be used to obtain the following measurements:
b Phase current measurements for Sepam™ T87, M88 and G88 with ANSI 87T
transformer differential protection (connectors and )
b Phase current measurements for Sepam™ B83 (connector )
b Unbalance current measurements for Sepam™ C86 (connector ).
Parameters
Sensor type LPCT
Number of CTs Ia, Ib, Ic
Rated Current (I
N) 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000,
1600, 2000 or 3150 A
Note : Rated Current (I
N) must be set twice, because:
b The software parameter setting uses the advanced UMI or the SFT2841 software tool.
b The hardware parameter setting uses microswitches on the CCA671 connector.
Ic
Ib
Ia
a
b
c
ab
c
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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