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Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Doc# E149701 1-18
1: Three-Phase Power Measurement
It is often assumed that power quality problems originate with the utility. While it is
true that many power quality problems can originate with the utility system, many
problems originate with customer equipment. Customer-caused problems may mani-
fest themselves inside the customer location or they may be transported by the utility
system to another adjacent customer. Often, equipment that is sensitive to power
quality problems may in fact also be the cause of the problem.
If a power quality problem is suspected, it is generally wise to consult a power quality
professional for assistance in defining the cause and possible solutions to the
problem.
Cause Disturbance Type Source
Impulse transient Transient voltage disturbance,
sub-cycle duration
Lightning
Electrostatic discharge
Load switching
Capacitor switching
Oscillatory
transient with decay
Transient voltage, sub-cycle
duration
Line/cable switching
Capacitor switching
Load switching
Sag/swell RMS voltage, multiple cycle
duration
Remote system faults
Interruptions RMS voltage, multiple
seconds or longer duration
System protection
Circuit breakers
Fuses
Maintenance
Under voltage/over voltage RMS voltage, steady state,
multiple seconds or longer
duration
Motor starting
Load variations
Load dropping
Voltage flicker RMS voltage, steady state,
repetitive condition
Intermittent loads
Motor starting
Arc furnaces
Harmonic distortion Steady state current or volt-
age, long-term duration
Non-linear loads
System resonance
Table 1.3: Typical Power Quality Problems and Sources
- Shark 200 & 200T 1
- Use Of Product for Protection 6
- Statement of Calibration 6
- Disclaimer 6
- Table of Contents 9
- Industries/GaugeTech 10
- 1.1.1: Wye Connection 13
- 1.1.2: Delta Connection 16
- 1.2: Power, Energy and Demand 20
- 1.4: Harmonic Distortion 26
- 1.5: Power Quality 29
- 2.1.2: Ordering Information 34
- 2.1.3: V-Switch 36
- Key Technology 36
- 2.1.4: Measured Values 38
- Table 1: 38
- 2.1.5: Utility Peak Demand 39
- 2.2: Specifications 40
- 2.3: Compliance 45
- 2.4: Accuracy 46
- Table 2: 46
- 3: Mechanical Installation 49
- 3.4: Transducer Installation 54
- 4: Electrical Installation 57
- $VSSFOUHJMMT 60
- OJDLFMQMBUFE 60
- CSBTTTUVET 60
- 5.1.1: IrDA Port (Com 1) 79
- Electro Industries/GaugeTech 80
- UNICOM 2500 83
- Overview 84
- Software 85
- 6: Using the Shark® 200 Meter 103
- 6.2: Using the Front Panel 105
- 6.2.6: Using Operating Mode 117
- 7: Using the I/O Option Cards 121
- 7.2: Installing Option Cards 122
- 7.4: 1mA Output Card (1mAOS) 124
- 7.4.1: Specifications: 124
- 7.4.2: Default Configuration: 125
- 7.4.3: Wiring Diagram 126
- 7.5.1: Specifications 127
- 7.5.2: Default Configuration: 128
- 7.5.3: Wiring Diagram 129
- 7.6.1: Specifications 130
- 7.6.2: Wiring Diagram 132
- 7.7.1: Specifications 133
- 7.7.2: Default Configuration: 134
- 7.7.3: Wiring Diagram 135
- 7.8.1: Specifications 136
- 7.8.2: Wiring Diagram 137
- 7.9.1: Specifications 138
- 7.9.2: Default Configuration 139
- 7.9.3: Wiring Diagram 139
- 7.10.1: Specifications 140
- 7.10.2: Default Configuration 141
- 7.10.3: Wiring Diagram 141
- 8.1: Overview 143
- 8.2: Hardware Connection 143
- 8.4.1: Ethernet Communication 144
- 8.4.2: Embedded Web Server 144
- 8.4.5: Keep-Alive Feature 151
- 9: Data Logging 153
- A.1: Introduction 155
- B.1: Introduction 161
- B.3: Data Formats 161
- B.4: Floating Point Values 162
- Byte 012345678910111213 164
- B.5.3: Block Definitions 166
- B.5.4: Log Retrieval 176
- B.5.4.1: Auto-Increment 176
- B.5.6: Examples 196
- B.6.1: Hex Representation 199
- B.6.2: Decimal Representation 199
- C: DNP Mapping 243
- C.3: Data Link Layer 244
- C.4: Application Layer 244
- C.5: Error Reply 246
- C.6: Object Specifics 246
- C.7: DNP Object Point Map 248
- C.8: DNP Message Layouts 257
- C.9: Internal Indication Bits 260
- D.1: Introduction 261
- D.2: Installation Procedures 261
- Network Card (INP300S) 269
- E.1.5: Reference Materials 280
- Network Card 281
- E.2.1: Overview 281
- System Log 293
- Firmware 294
- E.6: Keep-Alive Feature 296
- E.7: Testing 296
- E.8: Error Codes 297
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