GE DGP Series - Elementary Diagrams

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GE Power Management DGP Digital Generator Protection System 1-

23

1 PRODUCT DESCRIPTION 1.5 ELEMENTARY DIAGRAMS

1

1.5 ELEMENTARY DIAGRAMS

Figure 1–9: ELEMENTARY DIAGRAM WITH TEST BLOCKS, WYE VTs

Table of Contents

Default Chapter5
- Table of Contents5
Product Description13
Getting Started13
- Unpacking the Relay13
- Order Codes & Selection Guide14
- Special Models15
  - DGP***AAA-0101 and DGP***AAA-010215
  - Dgp***Aba-000515
- Dec 1000 Contact Expansion Unit15
Introduction16
- General16
- Application16
Protection Features18
- Description18
- Stator Differential (87G)19
- Current Unbalance (46T)19
- Loss of Excitation (40)19
- Anti-Motoring (32)20
- Time Overcurrent with Voltage Restraint 51V20
- Stator Ground (64G/27Tn)20
- Ground Overcurrent (51Gn)21
- Overexcitation (24)21
- Overvoltage (59)22
- Undervoltage (27)22
- Over and Underfrequency (81)22
- Voltage Transformer Fuse Failure (Vtff)22
- Accidental Energization (Ae)23
Other Features29
- Inputs29
- Output Relays29
- Start-Up Self-Tests30
- Run-Time Self-Tests30
- Adaptive Sampling Frequency31
- Trip Circuit Monitor31
- Sequence of Events31
- Time Synchronization32
- Fault Report & Oscillography Data33
- Local Man-Machine Interface33
- Local Printer33
- Remote Communications34
- Remote Control34
- Password Protection34
- Remote Communications - Modbus Protocol34
Elementary Diagrams35
Calculation of41
General41
- Description41
Configuration Settings50
- Description50
- Example Configuration Settings52
Protection Function Settings53
- Trip and Alarm Output Relays53
- Stator Differential 87G53
- Current Unbalance Alarm 46A58
- Current Unbalance Trip 46T58
- Loss of Excitation 40, 40-1, 40-260
- Anti-Motoring (Reverse Power)61
- Overcurrent with Voltage Restraint (51V)62
- Stator Ground Fault 64G-168
- Stator Ground Fault 64G-268
- Stator Ground Fault 27Tn68
- Overexcitation Alarm (Volts/Hertz: 24A)69
- Overexcitation Trip (Volts/Hertz: 24T)69
- Overvoltage 5974
- Undervoltage Cutoff of 8176
- Underfrequency 81-U76
- Overfrequency 81-O76
- Digital Input DI76
- Voltage Transformer Fuse Failure Vtff89
- Accidental Energization Ae89
- Ground Overcurrent 51Gn90
2.4 Commissioning91
- Dgp Aca Settings Table91
3.1 Case Assembly97
- Warning97
- Construction97
- Electrical Connections & Internal Wiring97
- Identification97
Circuit Board Modules100
- Warning100
- Basic Construction100
- Identification100
Xtm Test Plugs102
- Description102
- Terminal Designation102
- Xtm Test-Circuit Connections102
- Test Plug Insertion102
Installation103
- Receiving, Handling, & Storage103
- Environment103
- Mounting103
- External Connections103
- External Connections Test103
- Surge Ground Connections103
Acceptance Tests105
Introduction105
- Warning105
- General105
  - General Tests105
  - Protection Tests105
- Test Equipment106
- Drawings & References106
  - Drawings106
  - References106
- Equipment Grounding106
- Required Settings106
4.2 Test Preparation106
General Instructions107
- Procedure107
- Setting Changes107
- Entering the Test Mode108
- Exiting the Test Mode108
Using Ge-Link109
- Description109
- Hardware Setup109
- Software Setup109
  - Load & Start Ge-Link109
  - Set up a New Test Unit109
- Relay Setup110
- Logging into the Relay110
- Setting Changes111
- Entering the Test Mode111
- Exiting the Test Mode111
Initial Test Setup112
- Description112
General Relay Tests 4.6.1 Note113
- T1: MMI Status and Display Testing113
- T2: Digital Output Tests115
- T3: Digital Input Tests117
- T4: Ac System Input Test119
Protection Tests121
- Description121
- T5: Generator Differential Test 87G122
- T6: Current Unbalance Alarm 46A150
- T7: Current Unbalance Trip 46T151

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