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26

ZP-BH05E

BH0654BE

6 HOW TO INSTALL INGVAR

6.5 Connecting the Current
Unit to the Control Unit

The Current unit is connected to the Control Unit via a
cable with multi-pin connectors.

Current unit connected to Control Unit

6.6 Grounding INGVAR

WARNING

This equipment can be used only in

electrical systems with single Ground.

User must verify before connecting

this unit to power, that High Voltage

Ground and Low Voltage Protective

Ground create a single protective

ground with no measurable voltage

potential existing between these

ground systems. If a voltage potential

is found between the ground systems

please consult local safety regulations.

WARNING

Always use a grounded mains cable to
connect the Control Unit to the mains,
and in addition you must connect sepa-
rate ground cables. Connect the Control
Unit and the Current Unit to ground as
shown in the figure below.

INGVAR connected to ground

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Summary of Contents for INGVAR

Page 1: ...WWW MEGGER COM User s Manual Art No ZP BH05E Doc BH0654BE V02 2011 INGVAR Primary Current Injection Test System...

Page 2: ......

Page 3: ...n contained in this manual is subject to change without notice and does not represent a commitment on the part of Megger Sweden AB Any attached hardware schematics and technical descriptions or softwa...

Page 4: ...cable sets with customised length 28 Calculate the impedance 29 6 9 How to arrange the cable sets 30 Minimising impedance in cables 30 6 10 How to arrange bars 32 6 11 FAQ 32 7 How to use INGVAR 34 7...

Page 5: ...range LOW 57 Scale factor range HIGH 57 10 4 Scale factor for the I 30 function 57 10 5 Calibration of scale factor ammeter 2 58 Scale factor range 0 2 A 58 Scale factor range 0 20 A 58 10 6 Calibrati...

Page 6: ...each appropriate section of the manu al 1 Read Follow Retain all instructions All safety and operating instructions must be read before using INGVAR All safety and operating instructions for INGVAR m...

Page 7: ...the INGVAR in areas with excessive dust mechanical vibration or shock Do not use INGVAR near water Do not expose the INGVAR to rain or moisture Do not touch the plug with wet hands Doing so may resul...

Page 8: ...ord if it begins to thunder Touching them may result in electric shock 14 Cleaning Unplug INGVAR before cleaning Do not use liquid cleaners or aerosol cleaners Use only a damp cloth for cleaning Stubb...

Page 9: ...BH0654BE ZP BH05E 9 1 Safety...

Page 10: ...he stop input At a lower current I 30 to avoid unnecessary heating of the object being tested while the current is being adjusted In pulses both pulse duration and between pulse pause are user definab...

Page 11: ...transformers Conducting polarity tests on current transformers Other fields of application include Tests requiring high currents Testing direct acting automatic reclosers Testing sectionalizers Testi...

Page 12: ...rent generation Green yellow and red LEDs indicate percentage of current generated for a specific load 8 Miniature circuit breaker F1 connected to the current generation circuitry It can be operated m...

Page 13: ...or the ammeter 2 A METER 2 measures a second current select their ranges and how the values should be expressed You can also set the system to measure the turns ratio of a current transformer SYS Her...

Page 14: ...T block INT Internal detection Hold Stop takes place when the current is interrupted by the object being tested Voltage mode The input responds to application or interruption of voltage The input resp...

Page 15: ...l Unit 2 OUTPUT current output Terminals for parallel or serial configuration 3 4 Sensor for the output configuration parallel serial 5 OUTPUT current output Terminals for parallel or serial configura...

Page 16: ...120 mm2 Grounding cable Cable for protective grounding 5 m 16 ft 16 mm2 Mains cable Mains cable 3 m 10 ft 240 V 16 A Optional cables Interconnection cable 5 m 16 ft GA 12705 Interconnection cable 10...

Page 17: ...BH0654BE ZP BH05E 17 2 Introduction...

Page 18: ...verflow in an area means that the value is too high in a field means that it is impossible to present a value The reason can be too low measurement signal or that it is impossible to calculate a value...

Page 19: ...BH0654BE ZP BH05E 19 4 Display...

Page 20: ...ings The menu options are described in detail below How to set values An example of how the display can appear for the AMMETER menu option appears below The top line the menu heading shows what is to...

Page 21: ...should not use the Auto mode 0 2 A 0 2 A range is selected 0 20 A 0 20 A range is selected A Meter 2 Unit Ampere Current reading in Ampere of In Current reading as percentage of nominal current CT ra...

Page 22: ...nu The directional indicators show you the direction or direc tions in which you can scroll You can return to the previous level by pressing the ESC button You select the item you want to change with...

Page 23: ...ALL ap pears on the display 3 Press 4 Turn the Select set knob until the number of the desired memory appears 5 Press APPLICATION In this menu option you can change INGVAR s mode of operation for diff...

Page 24: ...bodily harm 6 2 Connecting the test object and the Current Unit to each other When you connect INGVAR to the object being test ed you should check that the contacts on the connec tors are clean and t...

Page 25: ...es connection when you want a high voltage at a high load impedance LOAD Output in serial configuration 6 4 Parallel connection Use parallel connection when you need a low internal impedance in order...

Page 26: ...connecting this unit to power that High Voltage Ground and Low Voltage Protective Ground create a single protective ground with no measurable voltage potential existing between these ground systems I...

Page 27: ...y is rated 10 A or 16 This will limit the highest output current but it is still possible to get several kA for a short time with a slow 16 A fuse Mains cable and connectors The inlet and connectors o...

Page 28: ...c A Max cont current A Weight total set kg Article number 1 pair 120 mm2 1 x 120 2 pairs 240 mm2 2 x 120 0 32 0 80 3 200 700 7 3 GA 12210 3 pairs 360 mm2 3 x 120 0 25 0 63 4 800 1 050 10 0 k GA 12310...

Page 29: ...y are 1 meter apart Example customised Multi cable sets length 2 x 5 0 m Number of cables Cross section area Impedance cables twisted m Impedance ca bles not twisted m Impedance ca bles 1 m apart m Ma...

Page 30: ...can be twisted keep cables with same current direction away from each other as much as possible B Avoid loops or windows It is sometimes not possible or practical to twist the cables However any acti...

Page 31: ...tall INGVAR Cables close together but not twisted Impedance is 1 5 to 2 5 times higher than with twisted cables LOAD LOAD Cables with opposite current direction 1 meter apart Im pedance is 2 to 4 time...

Page 32: ...gain because impedance due to magnetic flux is a bigger problem than the resistance Do not use bars thicker than 10 mm and arrange the bars with their flat sides close together The reason is that the...

Page 33: ...BH0654BE ZP BH05E 33 5 Menu options...

Page 34: ...0 66 of max In order to generate higher power you turn the Select Set knob to the right the LEDs 0 33 are lit and the display show briefly CURRENT RANGE 33 100 1 In this mode you can generate power in...

Page 35: ...e rule of thumb here 7 3 Setting the desired current Low currents 1 Connect the object being tested to INGVAR Current Unit output 2 Press TIME 3 Adjust the current using the Current adjust knob The va...

Page 36: ...the desired generation time by turning the Select set knob To get the time expressed in another unit than the preset select unit in the SYSTEM menu option TIMER MAX TIME 1 500s 3 Press TIME to start...

Page 37: ...on of a voltage Interruption of a voltage Application or interruption of a voltage 7 7 Getting maximum current from INGVAR Maximum output current is limited by the following Impedance of the object be...

Page 38: ...desired current See section 7 3 Set ting the desired current 3 Press the APPL menu option 4 Turn the Select set knob until PULSES ap pears on the display 5 Press 6 Set the pulse duration TIME ON by tu...

Page 39: ...ew current generation operation or press RESET 7 11 Measuring phase angle and polarity INGVAR can display the phase angle between the cur rent from INGVAR A METER and A the current I2 passing through...

Page 40: ...Q and power factor cos When INGVAR s voltmeter is activated you can meas ure impedance Z active power P resistance R reactance X virtual power S reactive power Q and power factor cos Scroll through t...

Page 41: ...lamp lights up b the current value is frozen on the display c the current to the object is interrupted When you are testing protective relay equipment you can as a next step reduce the current and fre...

Page 42: ...s sary heat 1 Basic settings OPERATE OFF CURRENT ADJUST Close to the operating limit HOLD function ON AUTO OFF STOP INPUT 2 For protective relay equipment Set the stop condition to for example For bre...

Page 43: ...s permits you to find the instantaneous pick up without operating the overcurrent stage You can also use limited time generation MAX TIME to obtain the desired generation time Manually controlled mome...

Page 44: ...ent I through the impedance If voltage at INGVAR terminals is less current will be lower than desired Note Voltage is required to get current through the impedance and you need to know the imped ance...

Page 45: ...ance Output voltage Current m V kA 3 Calculate maximum allowed cable set impedance Subtract test object impedance from test circuit im pedance Simplification Both cable set and test object are inducti...

Page 46: ...se a cable set that is not too clumsy One or two cables in parallel each side is sufficient in many cases especially if it is possible to twist the cables c Distance 5 meters or more and current 3 kA...

Page 47: ...BH0654BE ZP BH05E 47 5 Menu options...

Page 48: ...y pressing ESC repeat edly until max appears after a current value This value should be used for test objects whose impedance changes during the opera tion Measuring the tripping time 1 Set the curren...

Page 49: ...The secondary side of the transformer must be closed during the injection 1 Basic setting OPERATE OFF AMMETER1 UNIT AMPERE 2 Connect the INGVAR output to the primary terminals on the current transform...

Page 50: ...which is marked with a dot to P2 H2 on the primary side of the CT 3 Connect the other output terminal to P1 H1 4 Connect the one of A METER 2 s A termi nals which is marked with a dot to S2 X2 on the...

Page 51: ...e re closing cycle i e from the recloser s first trip to its last trip C The trip and reclosing times D The current at the first four trip operations The showed value is the average of the current at...

Page 52: ...be obtained from a direct acting automatic recloser After the cycle is completed the following are stored and displayed The number of current pulses until lockout number of times the current is inter...

Page 53: ...of pulse T1 214ms T1 38A Current at T1 14 Scroll using the Select set knob to get the times for R1 T2 R2 etc 15 Press TIME to start a new test 16 Press the APPL button to reset INGVAR to normal use 17...

Page 54: ...ion does not stop when the breaker opens Zero offset need to be calibrated see section 10 2 Calibration of offset Unexpected value on Ammeter 1 INGVAR is set for DC Meas urement while AC is gener ated...

Page 55: ...annot present measured values for the gener ated current because Current Unit unknown because it is uncalibrated Calibrate the Current Unit Unexpectively long trip time while testing instan taneous tr...

Page 56: ...om mend that it is done at 2 3 of the measurement range or at 2 3 of the highest rated current for your ING VAR system see output specifications in chapter 11 You can however calibrate at other values...

Page 57: ...he display matches that on the reference ammeter 11 Press to confirm the calibration Scale factor range HIGH 1 Press the menu option A and change the range to HIGH 1 Press to confirm 1 Press A to leav...

Page 58: ...0 2 A range follow step 3 to 10 Cali brate at 13 A 2 3 of the full range 10 6 Calibration of scale factor voltmeter Scale factor range 0 0 2 V 1 Press the V A menu option select VOLTME TER 2 Press 3...

Page 59: ...ng the problem of having no calibra tion values at all Resetting must always be followed by a calibration of the zero offset which is a part of the regular calibration procedure It is possible to comb...

Page 60: ...Hz DC RMS Inaccuracy 1 of range 1 digit Ammeter 1 Ranges Serial Low 0 1 00 kA Serial High 0 2 00 kA Parallel Low 0 3 25 kA Parallel High 0 6 50 kA Resolution 0 999 A 1 A 1 00 6 50 kA 10 A Ammeter 2 R...

Page 61: ...igh voltage level AC 1 60 V AC rms Low voltage level AC 1 3 V AC rms Input current at high level AC DC 1 5 mA Contact state Changeover resistance 6 k Low changeover resistance 1 k Output current with...

Page 62: ...B port on the PC using a cable and a communications program such as the terminal program fetaured in Windows or something similar to this The transfer of test data is initiated each time the ENTER key...

Page 63: ...per second 19200 Data bits 8 Parity Even Stop bit 1 Flow control Xon Xoff 5 Click OK 6 Click on Transfer and select Capture Text 7 Enter the name of the file where the data should be stored and click...

Page 64: ...Bits per second 19200 Data bits 8 Parity Space Stop bits 1 Flow control None 5 Click OK 6 Click on Transfer and select Capture Text 7 Enter the name of the file where the data should be stored and cl...

Page 65: ...ress ENTER The down loaded data contains this Current measured by Ammeter 1 amperes Time seconds Current measured by Ammeter 2 amperes Voltage volts Phase angle degrees Imax amperes Example of transfe...

Page 66: ...amperes Reclosing times and current seconds amperes Example of transferred data 2 OP TAT 0 673 s T01 0 397 s 47 A R01 0 254 s 0 A T02 0 419 s 47 A R02 0 000 s 0 A T03 0 000 s 0 A R03 0 000 s 0 A T04 0...

Page 67: ...BH0654BE ZP BH05E 67 Appendix 1...

Page 68: ...erate a pulse train 38 Generate current 34 Generating Briefly 35 Continuously 36 Limited time 35 36 42 Grounding Oden AT 26 H Heating of objects 35 Holding measured values 39 I I 30 function 35 Impeda...

Page 69: ...Specifications 60 Symbols on the instrument 6 T Temperature alarm 13 Testing Pick up 42 Protective relay 41 Testing a direct acting automatic recloser 51 Testing a low voltage breaker 48 Testing a se...

Page 70: ...70 ZP BH05E BH0654BE Index...

Page 71: ......

Page 72: ...ld leading manufacturer and supplier of test and measurement instruments used within the electric power building wiring and telecommunication industries With research engineering and manufacturing fac...

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