Black Box IC109A-R2 Instrukcja Instalacji Strona 37
- Strona / 164
- Spis treści
- BOOKMARKI
Oceniono. / 5. Na podstawie oceny klientów
31
1
© 2007 Schneider Electric. All Rights Reserved.
63230-216-229-B1
Installation
1A/5A Current Transformers
Restricted Ground Fault Differential Protection (ANSI 64REF)
b The primary current of the neutral point current transformer used must comply
with the following rule:
0.1 I
N ≤ Neutral Point CT Primary Current ≤ 2 IN
where IN = primary current of phase CTs on the same winding
Current transformers should be defined by the equation below that produces the
highest knee-point voltage:
Vk ≥ (R
CT
+ RW) x 20 IN
Vk ≥ (R
CT
+ Rw) (1.6 I
3P
/IN) x IN
Vk ≥ (R
CT
+ Rw) (2.4 I
1P
/IN) x IN
The equations apply to the phase current transformers and the neutral-point current
tranformer, where
IN is the CT rated secondary current.
RCT is the CT internal resistance.
Rw is the resistance of the CT load and wiring.
I3P is the maximum current value for a three-phase short circuit.
I1P is the maximum current value for a phase-to-ground short circuit.
CCA630/CCA634 Connector
DE80051
Function
The current transformers (1A or 5A) are connected to the CCA630 or CCA634
connector on the rear panel of Sepam™:
b The CCA630 connector connects three phase current transformers to
Sepam™.
b The CCA634 connector connects three phase current transformers and
one zero sequence current transformer to Sepam™.
The CCA630 and CCA634 connectors contain interposing ring CTs with through
primaries. When measuring phase and zero sequence currents, these primaries
provide impedance matching and isolation between the 1A or 5A circuits and
Sepam™.
The connectors can be disconnected with the power on since disconnection does
not open the CT secondary circuit.
DE80059
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
b Only qualified electrical workers should install this equipment.
Such work should only be performed after reading this entire set
of instructions.
b NEVER work alone.
b Before performing visual inspections, tests, or maintenance on
this equipment, disconnect all sources of electric power. Assume
that all circuits are live until they have been completely de-
energized, tested, and tagged. Pay particular attention to the
design of the power system. Consider all sources of power,
including the possibility of backfeeding.
b Always use a properly rated voltage sensing device to confirm
that all power is off.
b Disconnect the Sepam™ unit current inputs by unplugging the
CCA630 or CCA634 connector. Do not disconnect the wires from
it. The CCA630 and CCA634 connectors ensure continuity of the
current transformer secondary circuits.
b Short-circuit the current transformer secondary circuits before
disconnecting the wires connected to the CCA630 or CCA634
connector.
Failure to follow these instructions will result in death or serious
injury.
Ic
Ib
Ia
c
b
a
CCA634
c
b
a
Ic
Ib
Ia
- 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
© 2020, manymanuals.pl. Wszelkie prawa zastrzeżone. | 0.055 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji