Infratek 106A User manual

USERS MANUAL 106A

SINGLE- AND THREE PHASE

POWER ANALYZER

Infratek

TABLE OF CONTENTS

1. Safety

1.1 Warnings

2. Introducing the High Speed Power Analyzer

2.1 Options and Accessories

2.2 Specifications

3. Mathematical Definitions used by the Power Analyzer

4. Getting Started

4.1 Front Panel and Rear Panel

4.2 Adjusting the Optimal Viewing Angle

4.3 Line Power

4.4 Turning the Power Analyzer On

4.5 Using the Function Keys

4.6 Selecting a Measurement Range

4.7 Taking Some Basic Power Measurements

5. Operating the Power Analyzer from the Front Panel

5.1 Introduction

5.2 Front Panel Operations

5.3 Current Input Selection

5.4 Range Selection / Auto Range Selection

5.5 Selecting Synchronization

5.6 Selecting the Measurement Time

5.6.1 Fast Response Power Analyzer (z-version)

5.7 Selection of AC- or DC+AC-Coupling

5.8 Changing the Display Configuration, Transformer Testing, Motor Testing

5.8.1 Changing the Harmonic Number

5.9 Main Menu Selection

5.9.1 Display Hold

5.9.2 Auto Range Selection

5.9.3 Selecting the Size of the Graphic Area

5.9.4 Selecting the Graphic Data

5.10 Short Time Integrator

5.11 Energy Computation

5.11.1 Set-up for Energy Measurement

5.11.2 Set-up for Charge Measurement

5.11.3 Starting and Stopping

5.11.4 Reading Energies at Precise instants of Time

5.12 Scaling of Current- and Voltage Inputs

5.13 Saving Instrument Settings

5.13.1 This is How you Save Your Desired Instrument Setting

5.13.2 This is How the 106A Starts Up in the Desired Configuration

6. Operating the Power Analyzer Using the Computer Interface

6.1 Introduction

6.2 Local and Remote Operations

6.3 Computer Interfaces

6.4 Setting Interface Parameters

6.5 Cabling the Power Analyzer to a Host

6.6 How the Power Analyzer processes Input

6.6.1 Input Terminator

6.6.2 Sending Commands to the Power Analyzer

6.6.3 How the Power Analyzer processes Output

6.6.4 Optimizing Speed for Data Transfer

6.7 Service Requests and Status Registers

6.8 Computer Interface Command Set

7. The Power Analyzer Options

7.1 Installing the Option Assembly

7.2 Output Connectors

7.3 Analog Inputs

7.4 Four Analog Outputs

7.5 Three Phase Current Sensor Module 0-100A

7.6 Printer Output

7.7 External Synchronization

7.8 Disturbance Prevention

8. Calibration Procedure

8.1 Calibration Cycle

8.2 Equipment Needed

8.3 Preparing for Calibration

8.4 Offset Adjustment and Calibration

8.4.1 Voltage Amplifier Calibration

8.4.2 Current Amplifier Offset Adjustment

8.4.3 Current Amplifier Calibration

8.4.4 Shunt Input Calibration

8.4.5 1A Input Calibration, Power Calibration

1-1

1. SAFETY

Before using the Power Analyzer, read the following safety information carefully.

In this manual „WARNING“ is reserved for conditions that pose hazards to the

user; „CAUTION“ is reserved for conditions that may damage your instrument.

 Turn off power in the circuit to be measured.

 Avoid working alone.

 Follow all safety procedures for equipment being tested.

 Inspect the test leads for damaged insulation.

 Be sure the Power Analyzer is in good operating condition.

 To avoid electrical shock, use caution when working above 30V dc or rms

 Disconnect the live test leads before disconnecting the common test leads.

 When making a current- or power measurement, turn the circuit power off

before connecting the Power Analyzer in the circuit.

 Switching on inductive loads means large inrush currents. Take

precautions to avoid overloading the current channels by shorting the start-

up currents across the current inputs.

 Switching off inductive loads or switching on rotating loads means large

voltages or extremely fast changing voltages on the Power Analyzer input

terminals. Such conditions may damage the instrument and are potentially

hazardous.

 To comply with EN50081-1 the current- and voltage test leads must form 4

windings through ferrite toroid Philips Type 4322 020 9720 or equivalent.

Interface inputs/outputs must be shielded.

 1kV burst test: use shielded input- and output cables.

 The Power Analyzer complies with the safety standards IEC 1010-1,

EN61010-1.

1-2

1.1 WARNINGS

 Before reading the manual or before using this instrument read carefully

the warnings below and make sure you understand them.

 WARNING: Line Power

To avoid shock hazard, connect the instrument power cord to a power

receptacle with earth ground.

 WARNING

The maximum floating voltage above earth ground on the current input

terminals and the voltage Lo-input terminals is 600V. Exceeding these

limits poses a hazard to the meter and operator.

 WARNING

This instrument must be operated by qualified personnel.

 WARNING

Refer all servicing of this instrument to qualified personnel. Before opening

case disconnect all leads connected to the instrument and finally

disconnect the power line cord.

 WARNING

The specifications given in this manual solely describe the technical

properties of the instrument. They do not imply any other properties unless

it is explicitly said so.

 WARNING

Use of this instrument in life support systems and in systems for people

transportation must be expressly authorized.

The authorization must be signed by the manufacturer of this Power

Analyzer.

2-1

2. INTRODUCING THE POWER ANALYZER

WARNING

Read the „Power Analyzer Safety“ in section 1 of this manual before using the

instrument.

This 1- and 3-phase Power Analyzer is designed for bench-top, field service,

and system application.

Some features provided by the Power Analyzer are:

 Large, blue LCD monitor, 120 x 64mm (240x128 pixels).

 Fully menu controlled operation with only 11 membrane keys.

 Meter mode and graphics mode.

 Measures and computes all electrical quantities of current, voltage, power,

energy and harmonics of current, voltage, and power simultaneously.

 Frequency measurement 0.1Hz-400kHz.

 AC, and AC+DC for individual quantities.

 Built-in integrator.

 Harmonic Analysis of current, voltage and power.

 Bar graph and wave form display.

 Wide voltage- and current range (1.5mA-40A).

 High common mode rejection ratio.

2-2

2.1 OPTIONS AND ACCESSORIES

Option 01 contains the RS-232 serial interface, the Centronics printer output,

and the Windows Operating Software.

Option 02 contains the RS-232 serial interface, the Centronics printer output,

the IEEE-488 interface, and the Windows Operating Software. The IEEE-488

interface complies with the 488.1 and the 488.2 (1987) standard.

Option 03 contains the RS-232 serial interface, the Centronics printer output,

the IEEE-488 interface, four programmable 5V analog outputs, and eight

analog inputs, and the Windows Operating Software.

Option 04 contains a 3-phase current sensor module for currents up to 100A,

DC-10kHz. The supply for the current sensor module is provided by the Power

Analyzer.

Option 06 contains a comprehensive Lab View driver to operate the Power

Analyzer.

Option 07/M contains the Operating Software for Motor Testing.

Option 07/T contains the Operating Software for Transformer Testing

Option 08 contains TTL-input for external synchronization via analog-in analog-

out connector.

Option 09 contains the network to form artificial neutral.

Option 10 contains the 0-300A, 0-3000A flexible current clamps with connector

to clamp input of Power Analyzer. (one per phase)

Available accessories are described below.

ACS1: Current clamp with connector to the shunt input of the Power

Analyzer; range 0-200A, 0-1000A, DC-1kHz, 2 % accuracy

ACS2: Current clamp with connector to the shunt input of the Power

Analyzer; range 0-40A, 0-400A, DC - 2kHz, 2 % accuracy

ACS3: Soft carrying case provides protection for the instrument. Ideally

suited for service applications.

ACS4: Set of test leads, max. 32A, 1.5m; 2 red, 2 black.

2-3

ACS5: Shunt input connector.

ACS6: Service Manual

ACS7: Rack Mounting Kit

ACS8: Official Calibration Certificate from SCS (SCS: Swiss Calibration

Service)

ACS10: RS-232 / USB Adapter

ACS11: RS-232 / Ethernet Adapter

2.2 SPECIFICATIONS

This section defines the performance of the Power Analyzer. The user must be

aware that exposure of the Power Analyzer current inputs to their maximum

value will result in additional measurement errors. These errors add to those

given in the specification table.

1 A input: I0.5 A add 0.1 % x I2 (current in Ampere)

5 A input: I3 A add 0.018 % x I2 (current in Ampere)

30 A input: I15 A add 0.00014 % x I2 (current in Ampere)

Operating the 5A input at elevated currents (4A) will also affect the 30A input,

and visa versa.

Operating temperature range: 10C - 40C

2-4

Voltage 8 ranges: 0.3 V, 1 V, 3 V, 10 V, 30 V, 100 V, 300 V, 1000 V

Frequency range

DC, 0.1 Hz

–

1 MHz

Crest Factor

3:1 at 50 %

full scale (fs)

Input Impedance 1 MOhm

Common Mode

50 Hz/100 kHz

160 dB/100 dB

Standard accuracy 23°C; rms, mean, rectified mean; 0.3 V typ.

1 Hz–1 kHz ±(0.1 % rdg + 0.1 % range)

DC, 1 kHz–10 kHz ±(0.2 % rdg + 0.2 % range)

10 kHz-100 kHz ±(0.3 % / range + 0.04 % /kHz rdg)

100 kHz

300 kHz

±(0.3 % / range + 0.04 % /kHz rdg), typ.

Improved accuracy

±(0.05 % rdg + 0.07 %

rng)

DC: typical

Current 13 ranges: 1.5 mA, 5 mA, 15 mA, 50 mA, 150 mA, 500 mA,

1.5 A, 5 A; 1, 3, 10, 30, 100 A.

Max. 1A, 5 A, 30 A, resp.

Frequency range DC, 0.1 Hz-300 kHz /

1MHz

Crest Factor

3:1 at 50 % full scale (fs)

Common Mode 50 Hz/100 kHz 160 dB/120 dB

Standard accuracy 23°C; 1A-, 5A-, shunt input 30 A input

1Hz-1kHz ±(0.1% rdg+0.1% rng) ±(0.1% rdg+0.1% rng)

DC, 1kHz-10kHz ±(0.2 % rdg + 0.2 % rng) ±(0.7 % rdg + 0.2 % rng)

10kHz-100kHz ±(0.3 % range + 0.04 %/kHz rdg)

100kHz

300kHz

±(0.3 % range + 0.04 %/kHz rdg), typical

Lowest ranges 1.5 mA,

15 mA, 1 A: typical

Improved acc. 1Hz –

400 Hz

±(0.05% rdg + 0.07%rng)

DC: typical

Power 104 ranges corresponding to the products V x A.

Frequency range

DC, 0.1 Hz

300 kHz

45 Hz-65 Hz (0.1 % rdg + 0.01 % range)

1 Hz-1 kHz Add accuracy percent of current and voltage*

DC, 1 kHz-10 kHz Add* +0.04 % / (kHz PF)

10 kHz-100 kHz Add* +0.04 % / (kHz PF), typical

PF = 0 to ±0.1

PF = 0 to ±1

PF = 0 to ±1; DC: typical

PF = 1

Frequency

0.1 Hz-400 kHz, V triggered; Accuracy ±0.1 %

Computed

Values

Accuracy; Reactive Power, Var=±(VA2-W2)1/2, Apparent Power:

VA=Arms Vrms; Power Factor: PF=W/VA; Crest Factor:

CF=Ap/Arms, Vp/Vrms: Form Factor: FF=At/Arms, Vt/Vrms;

Impedance: Z=Vrms/Arms; Total Harm Dist: THD=Irms2 – Ifund2)1/2 /

Irms

Add accuracy percentage

figures of values involved

in computation.

Integrator Energy, Charge; Accuracy Wh, Vah, Varh, Ah; Basic accuracy of

integrated quantity.

Harmonic

Analysis

Frequency range of fundamental

2.5 Hz

100 kHz

Range of harmonic 1-99

Accuracy, Harmonic current and voltage

2 Hz-1 kHz ±(0.1 % rdg + 0.1 % range)

1 kHz-10 kHz ±(0.5 % rdg + 0.5 % range)

10 kHz

100 kHz

±(0.7 % range + 0.1 %/kHz rdg), typical

Display Liquid crystal graphic display with FL backlight

64 x 120 mm; 128 x 240 pixels

Power

AC, 50-400 Hz; Fuse: Power 85 V-240 V; 2 A, 15 VA

Dielectric

Strength

Inputs to case or power supply

Line input to case

Input to Input

2.5 kV/50 Hz/1 minute

1.5 kV/50 Hz/1 minute

4 kV/50 Hz/1 minute

2-5

Dimension

H x W x D; weight 150 x 235 x 320 mm; 4 kg

Options IEEE-488-2, RS232, Centronics printer output

4 programmable analog output; single-, sum-, or average values

4 analog inputs 0 - ±5 V, input impedance 200 kΩ

4 analog inputs 0 - ±10 V, input impedance 200 kΩ

Rack Mounting Kit / Windows Operating Software 95, 98, 2000, NT,

XP; transformer-motor testing

0 - ±5 V, accuracy 0.2 %

0 - ±10 V, accuracy 0.2%

1.5mA-1A

Inp/Shunt

Input

Shunt Hi

1 A input Hi against ILo

Shunt Lo

1 A input; mA: 1.5, 5, 15, 50, 150, 500, 1500

Shunt input, mV: 60, 60√10, 600, 600V√10,

6000, 6000√10

Input impedance:

60k

1A input: set scaling to 0.1

Shunt input: 60 mV

corresponds to 1.0000 A

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