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Raytech CAPO 2.5 Instruction Manual

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INSTRUCTION MANUAL
ENGLISH
CAPO 2.5 / CAPO 12
CAPACITANCE AND POWER FACTOR
METER
RAYTECH AG , OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND

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Summary of Contents for Raytech CAPO 2.5

  • Page 1 INSTRUCTION MANUAL ENGLISH CAPO 2.5 / CAPO 12 CAPACITANCE AND POWER FACTOR METER RAYTECH AG , OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND...

  • Page 2: Table Of Contents

    1.7 Do not operate in an explosive atmosphere.................9 1.8 Do not substitute parts or modify Instrument...............9 1.9 Transportation and Lifting....................9 2 CAPO 2.5 2.1 Unpacking......................... 10 2.2 Technical Specifications CAPO 2.5..................11 2.3 Measurement Parameters CAPO 2.5................12 3 CAPO 12 3.1 Unpacking......................... 14 3.2 Technical Specifications CAPO 12..................15 3.3 Measurement Parameters CAPO 12.................16...
  • Page 3 8.1 Menu Structure........................39 8.2 Main Menu......................... 40 8.2.1 Main Menu Screen....................40 8.2.1.1 Safety-Switch....................43 8.2.1.2 Earth connection..................43 8.2.1.3 Test object....................44 8.2.1.4 Time......................44 8.2.1.5 Battery Symbol.....................45 8.2.2 Measurement Mode....................46 8.2.3 Caption........................47 8.2.4 Measurement frequency..................48 8.2.5 Measurement voltage....................50 8.2.6 Start a measurement....................51 8.2.6.1 Single measurement..................52 8.2.6.2 Multi measurement..................52 8.2.6.3 Continuous measurement................53...
  • Page 4 A.1 T-Base Lite........................95 A.2 T-Base Pro........................95 B System Update C Software Development Kit (SDK) D Command Syntax D.1 Raytech USB/Serial Port Driver..................98 D.2 Command Syntax......................98 D.3 Answer-codes........................98 D.3.1 Synchronous Answers.....................98 D.3.2 Asynchronous Answer.....................99 D.3.3 Serial Interface......................99 D.4 USB Interface........................
  • Page 5 H Trouble Shooting H.1 Touch Panel does not work.....................109 H.2 USB Memory Stick does not work...................109 I Warranty Conditions I.1 Limitation of Warranty.......................110 I.2 Arbitration.......................... 111 J Contacts K Index Preliminary Page 5 of 117 Page 5 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 6: Safety Precautions

    Failure to comply with these precautions and other specific warnings violates the safety standards of design, manufacture, and intended use. Raytech assumes no liability for the operation and use of this equipment.

  • Page 7: Operator Qualifications And Safety Standards

    Raytech AG refuses to accept any responsibility for consequential or direct damage to persons or goods due to non-observance of instructions contained herein or due to incorrect use of the instrument.

  • Page 8: Measuring Cable Management And Connection

    Note that no cable touches the high voltage parts with the jacket! 1.5 Before applying power Read this manual carefully before operating the system. The CAPO 2.5 and the CAPO 12 operates within a wide range of power input from 85Vac to 264Vac and 47Hz to 63Hz with automatic ranging.

  • Page 9: Keep Away From Live Circuits

    Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the instrument. Return the instrument to a Raytech service department for service to ensure proper operation and that safety features are maintained.

  • Page 10: Capo

    2 x 10m Safety-Switch 1 × 2m Instruction Manual USB Stick If any of the above items are missing or damaged, contact your local representative or Raytech Switzerland immediately. Optional test leads may be ordered (other than shown). Preliminary Page 10 of 117...

  • Page 11: Technical Specifications Capo 2.5

    2.2 Technical Specifications CAPO 2.5 The CAPO 2.5 is specially designed for fast and easy field measurement with the well known high precision and quality of Raytech. Type CAPO 2.5 Size L: 521 mm (20.5”) W: 432 mm (17”) H: 216 mm (8.5”) Weight 22.2 kg (48.9 lbs.)

  • Page 12: Measurement Parameters Capo 2.5

    2.3 Measurement Parameters CAPO 2.5 Measured values: Dissipation Factor tan δ, Power Factor cos φ, Capacitance, Inductance, Quality Factor, Power (Watts), Power , Resistance @10KV Range Resolution Accuracy Dissipation Factor 0 ... 0.1 1x10 ± 0.5% Rdg ± 1x10 δ...
  • Page 13 Range Resolution Accuracy Inductance 50Hz 0.1mH or 4 Digits ± 0.3% Rdg 40H ... 100'000H @ 2.5kV 8H ... 100'000H @ 500V I⋅2⋅π⋅f 60Hz 33H ... 70'000H @ 2.5kV 6.6H ... 70'000H @ 500V For more information see chapter 6.2.4 Conversion capacitances to inductances on page 32 Preliminary Page 13 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 14: Capo

    2 x 10m Safety-Switch 1 × 2m Instruction Manual USB Stick If any of the above items are missing or damaged, contact your local representative or Raytech Switzerland immediately. Optional test leads may be ordered (other than shown). Preliminary Page 14 of 117...

  • Page 15: Technical Specifications Capo 12

    3.2 Technical Specifications CAPO 12 The CAPO 12 is specially designed for fast and easy field measurement with the well known high precision and quality of Raytech. Type CAPO 12 Size L: 627 mm (24.7”) W: 475 mm (18.7”) H: 292 mm (11.5”) Weight 36.9 kg (81 lbs.)

  • Page 16: Measurement Parameters Capo 12

    3.3 Measurement Parameters CAPO 12 Measured values: Dissipation Factor tan δ, Power Factor cos φ, Capacitance, Inductance, Quality Factor, Power (Watts), Power , Resistance @10KV Range Resolution Accuracy Dissipation Factor 0 ... 0.1 1x10 ± 0.5% Rdg ± 1x10 δ 0.1 ...
  • Page 17 Range Resolution Accuracy Inductance 50Hz 0.1mH or 4 Digits ± 0.3% Rdg 191H ... 100'000H @ 12kV 40H ... 100'000H @ 2.5kV I⋅2⋅π⋅f 8H ... 100'000H @ 500V 60Hz 159H ... 70'000H @ 12kV 33H ... 70'000H @ 2.5kV 6.6H ... 70'000H @ 500V >500V Max 400W For more information see chapter 6.2.4 Conversion capacitances to inductances on page 32...

  • Page 18: Introduction

    Raytech. CAPO 2.5 is battery operated and has an output voltage of 2'500V. CAPO 12 has an output voltage of 12'000V.
  • Page 19 Advanced Protection: Upon powering on, the system initializes itself with a self-calibrating, circuit checking sequence. If any problems are detected during this initialization period, or during operation, the operator is immediately notified. The system constantly monitors the condition when turned on. This is one of the many reasons we can extend our warranty to 2 years. Preliminary Page 19 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 20: Advantages & Features

    4.2 Advantages & Features  Built-in Standard Capacitor  Power Factor / Tan δ reading  Test Frequency 10Hz to 400Hz  Internal thermal printer  Microprocessor based system with internal storage for over 10000 test results  Data exchange via USB Key or USB / RS232 Connection ...

  • Page 21: Quick Start Guide

    Hazardous voltage may result in severe injury or death! 1. Power on the instrument 2. Select voltage and frequency The battery symbol on the top of the screen is only available in the CAPO 2.5 Preliminary Page 21 of 117...
  • Page 22 3. Press the Safety Switch and select 4. Get the results you want by selecting the Single or Cont (Continuous) to start measurement mode (also possible during the measurement) Preliminary Page 22 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 23: Power Factor / Tan Δ Measurements

    6 Power factor / ta n δ measurements 6.1 Definitions IEC defines the power factor cos φ as the ratio between the absorbed active power to the absolute value of the reactive power. This corresponds to tan δ. The picture below shows the definition of dielectric variables tan δ (dissipation factor) and cos φ (insulation power factor) in an equivalent parallel circuit.

  • Page 24: Dissipation Factor Tan Δ

    6.1.1 Dissipation factor tan δ It is the tangent of loss angle δ tan δ = | Q | sin δ cos φ tan δ = = tan (arcsin (cos φ)) | Q | √ √ δ 1−sin 1−cos φ where: Real Power [W] Reactive Power [VAR]...

  • Page 25: Power Factor (Pf) Cos Φ

    6.1.2 Power Factor (PF) cos φ It is the Cosine of the phase angle φ or the sine of the loss angle δ PF = cos φ = tan δ cos φ = = sin δ = = sin(arctan (tan δ)) √...

  • Page 26: Background

    Info: Info: The CAPO is able to display either dissipation factor tan δ or power factor cos φ based on the users choice. In cases where the angle is very small, dissipation factor tan δ practically equals power factor cos φ. Have a look at chapter 6.2.3.1 Simplifications for small Dissipation / Power Factor on page 31.

  • Page 27: Equivalent Circuits

    6.2.2 Equivalent circuits The two common methods of representing the imperfect dielectric are the series and parallel circuit. These two circuits include two elements, a capacitor and a resistor. The resistor represents the loss component of the insulation, while the capacitor represents the geometric and physical properties, such as the dielectric constant.
  • Page 28 Either circuit is adequate for explaining the effects of PF within a dielectric specimen. In the series circuit, R represent the series AC resistance. The parallel circuit shows R as the equivalent parallel resistance. Though both can be used in discussing and defining PF, the parallel circuit is the most common.

  • Page 29: Conversion Series- Parallel-Replacement Circuit Diagram

    6.2.3 Conversion series- parallel-replacement circuit diagram The following formulas are helpful for the conversion of the two models: Cs = Cp∗(1+tan δ) Cp = δ 1+tan ∗ω ∗Cp −1 Cs = = Cp∗(1+tan δ) ∗ω ∗Cp √ Rp−Rs Cp = ∗ω...
  • Page 30 ∗Xp ∗ω∗Cp Xs = Xs = + Xp ∗ω ∗Cp 1−Rp √ ∗Rs Xp = Rp−Rs where: serial Capacitance [F] ω angular frequency [s ] ω=2*π*f parallel Capacitance [F] serial reactance [Ω] serial Resistance [Ω] parallel reactance [Ω] parallel Resistance [Ω] Preliminary Page 30 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 31: Simplifications For Small Dissipation / Power Factor

    6.2.3.1 Simplifications for small Dissipation / Power Factor If the dissipation / power factor is small, the error can be neglected and you can use the following simplifications: Cs ≈ Cp Z ≈ Xs ≈ Xp Rs ≈ Xs∗tan δ Rp ≈...

  • Page 32: Conversion Capacitances To Inductances

    6.2.4 Conversion capacitances to inductances The CAPO is able to measure the inductance. With the formulas below you can make the conversion. If the CAPO detect an inductance instead of a capacitance, Cxp will switch to Lx (the tan δ /PF will switch to Quality factor + Rs j ω...

  • Page 33: Operation Elements

    7 Operation Elements 7.1 CAPO 2.5 1: Main Input Connect the power cable to the Main Input. Press the Main Switch to switch the CAPO on / off. 2: Main Switch Press to power the CAPO on / off. 3: Emergency Stop Press to stop: The measurement will stop and immediately switch off the high voltage.
  • Page 34 4: Thermal Printer Allows you to quickly get your results on paper by using the built-in thermal printer. 5: Safety Indicator Green Light on: System is in safe mode. Ready for handling test leads, connections. Red Light on: Unsafe mode! Don’t remove any cables and don't touch the test object. WARNING ! WARNING ! High voltage is on!
  • Page 35 12: Safety receptacle Here you can connect the Safety-Switch. For more detail about this receptacle have a look in the chapter 11.1.3 Safety on page 94. 13: Temperature receptacle This receptacle is for an external temperature probe. (Optional Accessory TP01) 14: USB Interface 1 x USB Host 1 x USB Device...
  • Page 36 1: Main Switch Press to power the CAPO on / off. 2: Main Input Connect the power cable to the Main Input. Press the Main Switch to switch the CAPO on / off. A slow acting Fuse (T 10A) protects the device. (Use only the correct fuse type to replace it). 3: Safety GND Connect a proper earth.
  • Page 37 4: Thermal Printer Preliminary Page 37 of 117 90315-1.2 Instruction Manual CAPO...
  • Page 38 Here you can connect the Safety-Switch. For more detail about this receptacle have a look in the chapter 11.1.3 Safety on page 94. This is not the same plug as the one from the CAPO 2.5, the cables are not interchangeable Preliminary Page 38 of 117 90315-1.2 Instruction Manual CAPO...
  • Page 39 13: Temperature receptacle This receptacle is for an external temperature probe. (Optional Accessory TP01) 14: Emergency Stop Press to stop: The measurement will stop and immediately switch off the high voltage. Turn clockwise to release. The device will remain in a safe mode state. 14: USB Interface 1 x USB Host 1 x USB Device...

  • Page 40: Capo 12

    8 Operating Menu The instrument software is straight forward and easy to set up and operate. With a few key strokes and selections on the test screen, measurements can be started. See chapter Fehler: Verweis nicht gefunden Fehler: Verweis nicht gefunden on page Fehler: Verweis nicht gefunden. 8.1 Menu Structure CAPO 12 menu is structured as shown in the figure below.

  • Page 41: Main Menu

    8.2 Main Menu 8.2.1 Main Menu Screen The Touch screen enables quick navigation by tapping directly on the screen. e.g. if you would like to change the measurement voltage, tap on it and the Menu “Select Test Voltage” will open. UST A Select the measurement Mode.
  • Page 42 Measurement test voltage [V]. Measurement frequency [Hz]. Itx: Measurement current [A] through test object (depending on measurement mode). This is the total current through the test object. If you tap on it, it will change to Ir, Ic, Ix Ir: Resistive current (in phase with an ideal resistor) Ic: Capacitive current (in phase with an ideal capacitor) : Calculated total current you would have, when you have 10kV over this test object.
  • Page 43 Info Opens the menu for the information about the results or the actual transformer template. Archive Opens the menu with the stored results and transformer templates on the instrument and the USB- key, if you have one connected. Setup Opens the Setup menu. Preliminary Page 43 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 44: Safety-Switch

    8.2.1.1 Safety-Switch On the right side of the main screen is a symbol for the Safety-Switch. Safety Switch is open Safety Switch is pressed 8.2.1.2 Earth connection Below the symbol for the Safety-Switch there is the symbol for the earth connection. If the symbol is crossed, the earth Earth connection is OK connection is open...

  • Page 45: Test Object

    8.2.1.3 Test object At the top of the screen the name of the actual profile is visible. Change it by tapping “Info” and select the tab “Name Plate”. Info in the bottom of the screen The Name Plate, with Information 8.2.1.4 Time The actual Time is visible in the main screen to the upper right corner.

  • Page 46: Battery Symbol

    8.2.1.5 Battery Symbol The battery symbol indicates the level of the battery and if the mains are connected or not. It is only available in the CAPO 2.5. Mains operation and charging. A plug Battery operation symbol is in the Battery...

  • Page 47: Measurement Mode

    8.2.2 Measurement Mode The actual measurement Mode is visible on If you need to change it, tap on it and a the main screen new window will open For more information about the measurement modes see chapter 9 Measurement Modes on page Preliminary Page 47 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 48: Caption

    8.2.3 Caption This is a user defined text that marks the results. The actual text of the caption is visible on If you need to change it, tap on it and a the main screen new window will open Select a text from the list and press the Or click on the text field to change the ^^^^^ button actual text or enter a new one...

  • Page 49: Measurement Frequency

    8.2.4 Measurement frequency The actual measurement frequency is If you would like to change it, tap on it and visible on the button a new window will open. This is also possible during a measurement Select the frequency you want. The four On the second tab User you can increase buttons on the right can be set by the user, or decrease the actual frequency...
  • Page 50 On the third tab f +/- you find a solution if you have heavy interference on the line frequency. The CAPO performs measurements at vicinity of the selected frequency. By this method noises and disturbances on line can not decrease the accuracy of measurement.

  • Page 51: Measurement Voltage

    This is also possible during a measurement Maximum voltage of CAPO 2.5 is 2'500V, CAPO 12 has a maximum voltage of 12'000V Preliminary Page 51 of 117 90315-1.2 Instruction Manual CAPO...
  • Page 52 Select the voltage you want. The four On the second tab User there is the buttons on the right, can be set by the user, option to increase or decrease the actual voltage. just select the " ü User Set" and press on the button you want to change.

  • Page 53: Start A Measurement

    Under the tab Sweep it would be possible to store different lists of voltages. The CAPO will start with the first voltage of the selected list. After a proper result, it will automatically change to the next voltage and perform the measurement. Edit a list: To Add or Remove a voltage of the list, use the button + or -...

  • Page 54: Single Measurement

    8.2.6.1 Single measurement To start a single measurement, press and The CAPO will do the measurement and hold the Safety Switch and afterwards after you get a stable result, it will press the Single button automatically stop the measurement. You can Save the result or directly Print it on paper 8.2.6.2 Multi measurement Instead of Single the button can be labeled...

  • Page 55: Continuous Measurement

    8.2.6.3 Continuous measurement To start a continuous measurement press During the measurement you can change and hold the Safety Switch and afterwards the measurement channel (e.g. from press the button Cont UST A to GSTg B ). You also don't have to stop the measurement if you want to change the frequency or the voltage.
  • Page 56 During or after the measurement you can Small values of tan δ or PF, will have the tap the dissipation factor measurement to same numbers. switch between tangent delta (tan δ) / Power Factor (PF) and Rp (parallel Resistance) Inductive loads: If the test object is inductive, the instrument shows automatically Lxp instead of Cxp and instead of the dissipation factor (tan δ...

  • Page 57: Setup

    8.2.7 Setup By pressing the Setup button, the Setup screen will appear. Symbol Taps Menu Conent The setup menu contains the following five parts: • General • Operators • Dissipation Factor • Printer • Colour They can easily be switched with the symbol taps on top of the screen. The content of this five parts is described in the following chapters.

  • Page 58: General

    The General tap contains the 6 following parts: 8.2.7.1.1 License License Manger is used to enter a Raytech license number. If your license state changes, you may be asked to enter a new license. This menu displays the actual license state.

  • Page 59: About

    8.2.7.1.2 About Choose this menu to get information about the instrument like firmware version and serial number. 8.2.7.1.3 Clock Use this menu, to set date and time. This is important for your data sets, because your measurement will contain a time stamp. 8.2.7.1.4 Cursor Lower versions than 0.8.8 of the Firmware had an option to activate a cursor of a USB mouse.

  • Page 60: Update

    8.2.7.1.5 Update New Firmware versions are available free of charge at www.raytech.ch Download the new Firmware (.zip file) onto your USB key on the root directory (Not in a sub-directory and do not Unzip it). Connect the USB key to the instrument and press Install .

  • Page 61: Service

    8.2.7.1.7 Service There are several embedded codes to allow different settings, e.g. calibrate the touchscreen, activate USB-driver and so on. For more information see chapter F Service Mode on page 104. The Service Mode has a limited access. Enter the corresponding code or exit directly by tapping '#' 8.2.7.2 Operator Every measurement can be stored with the name of the actual operator.

  • Page 62: Oil Correction Table

    8.2.7.3 Oil Correction Table NOTE: NOTE: To access this feature, you must enter the service code "1200#" first After you enter the Service Code #1200 a It is possible to make a measurement new symbol in the upper menu will appear. correction of the PF or tan δ...

  • Page 63: Dissipation Factor

    8.2.7.4 Dissipation factor Here you can choose between the dissipation factor tan δ or the Power Factor cos ᵠ The one you selected, will be on the print out and on the measurement display. 8.2.7.5 Quality Assistant If the Quality Assistant is enabled, a light in If the light is green, the measured result is the main screen indicates the quality of the stable...

  • Page 64: Printer

    8.2.7.6 Printer If you are able to use an external USB Printer, you should choose the correct emulation. Connect your USB Printer to the CAPO’s Maybe you would like to print a test page, USB host connector. Touch the USB Printer to make sure everything works properly.

  • Page 65: Results And Data Structure

    8.3 Results and data structure The measurement results can be stored on the internal memory or on an external USB-key. It's possible to exchange the results from the internal memory to external USB-keys or direct to a computer. Create a "test object" for an easy organization of all measurement results. Under a "test object" it is possible to store multiple measurements.

  • Page 66: New Test Object

    8.3.1.1 New test object Creating a new test object After clicking on New test object the Just tap on the input window you would like to change and a new window will open with following screen is visible: a keyboard 8.3.1.2 Load from Archive If the test object was created and stored to memory from an earlier measurement, select Load from Archive .

  • Page 67: New Measurement

    8.3.1.3 New Measurement This will create a new measurement in a previously loaded test object. 8.3.2 Info If you press the Info button, you will find data to your actual test object and measurements In the "Name Plate" tab, you get all the Select “Results”...

  • Page 68: Info

    8.3.3.1 Info Now if you select Info , you get the In the "Results" tab, you get an overview of your measurements information about the test object and its measurements If you would like to see the actual measurement Select Details to show the results in the results, press the Result button on the bottom selected measurements of the display.
  • Page 69 Select one to e.g. delete or print it. Press Esc to go back to the previous view. Preliminary Page 69 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 70: Diagram

    8.3.3.1.1 Diagram If the measurement has been made with a sweep function, it is possible to show the results in a diagram. Select Diagram to show it. With the Print... function you can print out or Change with the Tab between values of the save the diagram.
  • Page 71 The file is named with CAPO, the serial number of the instrument, the test object and the date and time. You can locate the file in the directory: Raytech\EXPORT on the USB Key. To select the CSV Separator, see chapter F.3 CSV Separator in the attachment on page 105.

  • Page 72: Measurement Modes

    9 Measurement Modes 9.1 Overview The CAPO has three measurement inputs: A, B and HV-GND. Over an internal relays-matrix they are automatically combined for the different measurement modes as follows: Measurement Inputs Mode HVGND UST A measured guarded guarded UST B guarded measured guarded...
  • Page 73 By selecting the different test modes, all combinations of measurements according the ANSI/IEEE Standard 62 can be measured without any rewiring. The CAPO 2.5 has no special terminal for the V-potential. But you can use the metal-housing of the plugs (HV, Input A, Input B), they have the V-potential.

  • Page 74: Ust Ungrounded Specimen Test

    9.2 UST Ungrounded Specimen Test The UST configuration is used for measurements between two terminals of a test specimen that are not grounded or that can be removed from ground. In the UST configuration, current flowing in the insulation between the voltage lead and the measuring lead of the instrument is measured and current flowing to ground is not measured.

  • Page 75: Ust A

    9.2.1 UST A Ungrounded specimen test channel A, capacitance measured = C , (C and C guarded) 9.2.2 UST B Ungrounded specimen test channel B, capacitance measured = C , (C and C guarded) Preliminary Page 75 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 76: Ust A + B

    9.2.3 UST A + B Ungrounded specimen test channel A + B, capacitance measured = C , (C guarded) Preliminary Page 76 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 77: Gst

    9.3 GST The GST configuration permits testing of a grounded insulation specimen through the specimen's ground. All current flowing to ground is measured. The configuration is illustrated bellow: GST A + B In the example above you measure the Capacitance and dissipation factor between HV and LV ), HV and tertiary TV (C ) and HV and tank (C ).

  • Page 78: Gstg

    9.4 GSTg The GSTg configuration allows unwanted currents, to bypass the measuring circuit and enables smaller sections of insulation to be tested individually. Only the ground currents are measured, using a GST-Guard configuration. Current flowing to terminals with the guard connection is not measured.

  • Page 79: Gstg A

    9.4.1 GSTg A Grounded specimen test with guarded A (connected to V), capacitance measured = C 9.4.2 GSTg B Grounded specimen test with guarded B (connected to V), capacitance measured = C Preliminary Page 79 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 80: Gstg A + B

    9.4.3 GSTg A + B Grounded specimen test with guarded A and B (connected to V), capacitance measured = C Preliminary Page 80 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 81: Xfrmr

    9.5 Xfrmr The Transformer measuring mode is helpful to measure Transformers. According to IEEE Std C57.152-2013 the different capacitances with its deviation factors can be measured. 9.5.1 HL HV Connect the high voltage from the CAPO to the shorten high voltage terminals of the transformer. Connect the measurement Input A to the shorten low voltage terminals of the transformer.

  • Page 82: Hlt Hv

    9.5.3 HLT HV Connect the high voltage from the CAPO to the shorten high voltage terminals of the transformer. Connect the measurement Input A to the shorten low voltage terminals of the transformer. Connect the measurement Input B to the shorten tertiary voltage terminals of the transformer. If you start the measurement, it will do the following 3 measurements: GSTg B GSTg A+B...

  • Page 83: Hlt Tv

    9.5.5 HLT TV Connect the high voltage from the CAPO to the shorten tertiary voltage terminals of the transformer. Connect the measurement Input A to the shorten high voltage terminals of the transformer. Connect the measurement Input B to the shorten low voltage terminals of the transformer. If you start the measurement, it will do the following 3 measurements: GSTg B GSTg A+B...

  • Page 84: Multi

    9.6 Multi This Test Mode is useful to generate lists with measurement modes. The CAPO will do all the measurement according to the selected list. Use + or - to change the selected list Preliminary Page 84 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 85: Excitation Current Iexci

    9.7 Excitation current Iexci The excitation current test consists of a simple open-circuit measurement of the current magnitude and loss, typically on the HV side of the transformer, with the terminals of the other windings let floating (with the exception of a grounded neutral). Excitation current is measured at rated frequency and usually at voltages up to 10kV.
  • Page 86 This is a sample for the delta connection INFO: INFO: Residual magnetism may produce misleading excitation current values when these are used solely as a criterion of the condition of the magnetic circuit of a transformer. Although some residual magnetism is almost always present in the core, in most cases it has no significant effect on test results.

  • Page 87: Bushing Test

    10 Bushing Test δ measurement is provided. In this chapter, information regarding bushing power factor/ tan According to IEEE C57.152-2013 standard, generally bushings are classified by design as: Condenser type • ◦ Insulating liquid-impregnated paper insulation, with interspersed conducting (condenser) layers or insulating liquid-impregnated paper insulation, continuously wound with interleaved lined paper layers ◦...
  • Page 88 By considering the design of high voltage bushing and with various measurement setups, following tests can be performed: Overall test to measure insulation between centre conductor and ground flange including • C1 and C2. Main insulation test to measure insulation between centre conductor and tap electrode •...

  • Page 89: Bushing Overall Test

    10.1 Bushing Overall test The following picture illustrates the measurement setup for overall test of a bushing. In this method the insulation between centre conductor and ground which includes both C1 and C2 can be measured. Please note that this test is useful if the bushing under test is isolated and not installed on an equipment such as transformer;...

  • Page 90: Bushing Main Insulation Test

    10.2 Bushing main insulation test The following picture illustrates measurement setup for main insulation test of a bushing. In this method the insulation between centre conductor and tap electrode which includes C1 can be measured. This method can be used only for bushings with tap electrode. For this test the UST A mode should be selected.

  • Page 91: Bushing Tap Insulation Test

    10.3 Bushing tap insulation test The following picture illustrates measurement setup for tap insulation test of a bushing. In this method the insulation between tap electrode and ground flange which includes C2 can be measured. This method can be used only for condenser types bushings with tap electrode. For this test the GSTg A+B mode should be selected.

  • Page 92: Bushing Hot Collar Test

    10.4 Bushing hot collar test hot collar test to measure insulation losses The following picture illustrates measurement setup for of a small section of the bushing. This test is useful when the bushing is not equipped with a tap electrode and can be used to locate probable cracks in porcelain or insulation problems. For the test setup, at first, a conductive hot collar band must be fit tightly to the surface of bushing, mainly near the top, then test cables must be connected according to the following picture.

  • Page 93: Interfaces

    11 Interfaces 11.1 Hardware 11.1.1 RS 323 1 x RS 232, 9 Pin Pin 2 TxD (CAPO-> Host) Pin 3 RxD (Host-> CAPO) Pin 7 GND Interface Parameters (fixed, unchangeable): Port RS232 Baudrate 38400 Baud Databit 8Bit Stopbits 1Bit Parity 11.1.2 USB USB-Master (Standard 2.0) USB-Slave (Standard 2.0)

  • Page 94: Safety

    The contact is open when the system is Safe. The contact is closed when the system is Unsafe. Pin 1 and pin 2 on the Safety connector: These pins are for Raytech Service use. Do not connect anything to these pins!

  • Page 95: Temp

    11.1.4 Temp This is the plug for an external temperature probe. Connect the TP 01 from Raytech and the CAPO The Temperature Sensor Cable (TP-01) is will display the actual temperature and store it not a standard delivery. together with the test results.

  • Page 96: Appendix

    Appendix CAPO 2.5 / CAPO 12 CAPACITANCE AND POWER FACTOR METER Page 96 of 117 90315-1.2 Instruction Manual CAPO...
  • Page 97 A.1 T-Base Lite........................95 A.2 T-Base Pro........................95 B System Update C Software Development Kit (SDK) D Command Syntax D.1 Raytech USB/Serial Port Driver..................98 D.2 Command Syntax......................98 D.3 Answer-codes........................98 D.3.1 Synchronous Answers....................98 D.3.2 Asynchronous Answer....................99 D.3.3 Serial Interface.......................99 D.4 USB Interface........................

  • Page 98: A Raytech T-Base

    It uses an advanced add-on system which makes it suitable for integration with external systems. To extend according to your needs a rich API interface and MS Visual Studio templates are available. More information on Raytech homepage. Preliminary Page 98 of 117...

  • Page 99: B System Update

    B System Update System firmware upgrades are available at no charge from the web site www.raytech.ch This firmware is downloaded to a Windows based computer and then can be used with an USB Stick to upgrade the CAPO. Download the new Firmware (.zip file) onto your USB key on the root directory (Not in a sub- directory and do not Unzip it).

  • Page 100: C Software Development Kit (Sdk)

    Windows Application and Raytech instruments. The SDK with native Raytech USB Driver for Windows provides the OS with full device functionality, appearing to OS as a Raytech USB device. This software can also be used without native Raytech USB drivers to control the device over the standard RS-232 serial port.

  • Page 101: D Command Syntax

    USB-Key. The newest version can always be downloaded from the internet at www.raytech.ch. D.1 Raytech USB/Serial Port Driver Raytech is providing a SDK for Software integrations in .NET Projects. For more information have a look at chapter C Software Development Kit (SDK) on page 100. D.2 Command Syntax Cmd [Para[,Para2..]] LF”...

  • Page 102: Asynchronous Answer

    +/- 12V D.4 USB Interface To communicate with the CAPO over USB it is necessary to switch to Raytech Driver Mode. Enter Service Code “2001” to set USB Driver Mode. This is normally already done. For more information have a look at chapter F.4 Raytech USB Driver on page 106.

  • Page 103: E Usb Printer Info

    E USB Printer Info E.1 Printer Requirements The Printer must conform to Standard USB class 7.1 device. Nearly every Printer conforms as such with the exception of multifunction devices (e.g. All in One Printers). Supported Languages are: • HP PCL •...

  • Page 104: F Service Mode

    F Service Mode The Service Mode has limited access. There are several codes accessible for setting parameters. From the main screen tap 'Setup'. Then in the General screen press 'Service'. Enter the corresponding code or Exit by tapping '#'. F.1 Calibrate Touchscreen The touch screen parameters can be calibrated by the end user.

  • Page 105: Show Ground Warning

    F.2 Show Ground Warning Enable or disable the warning message, when the instrument is powered on, by entering the Service Code 0200# Select Yes to enable the message If the warning message is enabled, it will be displayed at every boot-up of the Select No to disable the message.

  • Page 106: Raytech Usb Driver

    F.4 Raytech USB Driver If you would like to send commands to the CAPO over the USB-port, you have to activate the Raytech USB driver. Use the Service Code '2001#' to do so, but normally it's already done F.5 Show Series Values With the service code “125#”, the CAPO shows the series values additionally of the equivalent...

  • Page 107: Oil Correction Table

    F.6 Oil Correction Table In the Setup it is possible to make a measurement correction of the PF / tan δ on the basis of the temperature. To access this feature, you have to enter the service code “1200#” first. In the Setup you have access to this menu.
  • Page 108 If the Oil Correction Table is activated, you have to connect the Temperature Probe to measure the oil temperature or enter the oil temperature manually. For that just tap on the main screen on ϑm: -.- °C. Over the measured tan δ the calculated tan δ...

  • Page 109: G Error Messages

    G Error Messages Raytech instruments are designed to be precise, rugged and trouble free. In most cases, many operators will never see any error messages. Below is an example of a message: The emergency switch is activated. In this condition it is not possible to start a measurement.
  • Page 110 If the load is very big, e.g. that the measurement current is higher than 200mA, the CAPO protect itself, stops the measurement and shows the message "Powersupply Overload" or " Powersupply Undervoltage". To measure the load, decrease the voltage or the frequency and try again. Preliminary Page 110 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 111: H Trouble Shooting

    H Trouble Shooting When the CAPO is powered on, an internal calibration and check sequence is performed. Upon completion of the check sequence, the test set will proceed to the “Main Screen”. If there any problem detected with the test set, an err or message will appear. Test Voltage cannot be turned on Press the safety-switch before starting the measurement.

  • Page 112: Touch Panel Does Not Work

    Overheating: If the CAPO is overheated (e.g. due to high current, high output voltage over a long period of time) the red symbol appears. The CAPO protect itself, it stops the measurement and will not allowed to start a measurement till the temperature dropped to a normal value.

  • Page 113: I Warranty Conditions

    Warranty Conditions Preliminary Page 113 of 117 90315-1.2 Instruction Manual CAPO...

  • Page 114: Limitation Of Warranty

    Raytech AG Switzerland shall at their option and expense, repair or replace any part or parts that prove to be defective within the warranty limitation period- irrespective of the operating time of the test equipment provided that the cause of the defect occurred prior to the time at which the risk was passed.

  • Page 115: Arbitration

    NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. Arbitration All disputes arising out of or in connection with the contract between the purchaser and Raytech AG Switzerland and including those regarding the legal validity of this contract and this arbitration clause shall be settled out of court and shall be referred to arbitration for final decision.

  • Page 116: J Contacts

    J Contacts Raytech Switzerland Your Local Representative Raytech AG Raytech AG Oberenbenestrasse 11 Oberenbenestrasse 11 5620 Bremgarten 5620 Bremgarten Phone: +41 56 648 6010 Phone: +41 56 648 6010 Fax: +41 56 648 6011 Fax: +41 56 648 6011 Mail: welcome@raytech.ch...

  • Page 117: K Index

    K Index Preliminary Page 117 of 117 90315-1.2 Instruction Manual CAPO...

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