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Appx.

3

Insulation Resistance Measurements for Solar Cell Array

Appx. 3  Insulation Resistance 

Measurements for Solar Cell 

Array

There are two insulation resistance measurements for solar cell arrays. 

Characteristics of them are as follows:

Measurement with P-N opened

PV

Ω

 measurement of this manual is explained with this measurement.

As solar cell voltage influences the test voltage, the measurement may not 

be accurate. Incorrect procedure may damage the solar panel. If earth fault is 

occurred due to earth leakage as shown in the following figure, current being 

generated influences the insulation resistance meter resulting in inaccurate 

measurement with a normal insulation resistance meter. PV

Ω

 measurement 

mode of the IR4053 and IR4055 allows accurate measurements without the 

effect from power generation.

P

N

Connection box

PV

Earth 

leakage

Earth

PV current

Insulation resistance meter 

current reading

Measurement with P-N shorted

This measurement allows accurate measurements but is also a highly 

dangerous method as arc discharge may be generated due to the short 

circuit. There is also a fire risk depending on the deterioration level of the 

solar panel.

P

N

Connection box

PV

Earth

1

2

3

4

5

6

7

Appx.

索引

HIOKI IR4057B961-00

Содержание IR4053

Страница 1: ...53 IR4055 IR4056 IR4057 50 IR4053 10 IR4055 11 IR4056 20 IR4056 21 EN EN Instruction Manual Dec 2020 Edition 1 IR4057B961 00 20 12H IR4052C960 00 INSULATION TESTER Instruction Manual Dec 2020 Edition...

Страница 2: ...HIOKI IR4057B961 00...

Страница 3: ...supported Functionality Models As shown on instrument See IR4053 IR4055 IR4056 IR4057 50 Displaying 1 minute Values p 37 Negative Voltage Notification p 40 Low Resistance Measurement p 42 PV Measureme...

Страница 4: ...HIOKI IR4057B961 00...

Страница 5: ...ing the Z3210 Wireless Adapter IR4057 50 only 27 3 Measurement 29 3 1 Pre measurement Inspection 29 3 2 Auto Power Save Power Saving Function 30 3 3 Auto Backlight off Automatic Light off Function 30...

Страница 6: ...ction IR4055 and IR4057 50 only 51 Using the GENNECT Cross 51 Useful functionality of the Z3210 54 4 Specifications 55 4 1 General Specifications 55 4 2 Basic and Accuracy Specifications 57 4 3 Functi...

Страница 7: ...e occurred during shipping In particular check the accessories panel switches and connectors If damage is evident or if it fails to operate according to the specifications contact your authorized Hiok...

Страница 8: ...ted below are available for the instrument To order an option please contact your authorized Hioki distributor or reseller Options are subject to change Please check Hioki s website for the latest inf...

Страница 9: ...CAT III 600 V CAT II 600 V 10 A 4 L9787 91 Breaker Pin CAT III 600 V 10 A 5 L9788 10 Test Lead with Remote Switch Red CAT III 600 V CAT II 600 V 2 A 6 L9788 92 Breaker Pin CAT III 600 V 2 A 7 L9788 9...

Страница 10: ...in the manual before use WARNING Protective gear Performing measurement using this instrument involves live line work To prevent an electric shock use appropriate protective insulation and adhere to a...

Страница 11: ...ding topic in the Instruction Manual Indicates that dangerous voltage may be present at this terminal Indicates a instrument that has been protected throughout by double insulation or reinforced insul...

Страница 12: ...trument The limit values of reading errors are expressed in percent of reading of reading rdg Digits Resolution Refers to the smallest change in the indication on the digital measuring instrument i e...

Страница 13: ...ument conforms to the safety requirements for CAT III 600 V measuring instruments CAT II When directly measuring the electrical outlet receptacles of the primary electrical circuits in equipment conne...

Страница 14: ...ts are likely to occur To avoid short circuit or electric shock do not touch the metal part of the connecting test lead tip To avoid electric shock be careful to avoid shorting live lines with the tes...

Страница 15: ...accidents turn off the circuit before connecting the test leads To avoid electric shock do not exceed the lower of the ratings shown on the instrument and test leads CAUTION The cable is hardened unde...

Страница 16: ...heating systems such as high frequency induction heating systems and IH cooking equipment Susceptible to vibration Exposed to water oil chemicals or solvents Exposed to high humidity or condensation...

Страница 17: ...handling Be especially careful to avoid physical shock from dropping Test leads CAUTION Removable sleeves are attached to the metal pins at the end of the test leads To prevent a short circuit accide...

Страница 18: ...12 Operating Precautions HIOKI IR4057B961 00...

Страница 19: ...ester due to judgment after the start of measurement being extremely short The backlight lights up in red for a FAIL judgment defective Low variation in measured values The instrument generates little...

Страница 20: ...test lead 3 CONTROL terminal Controls L9788 10 Test Lead with Remote Switch Red 4 LINE terminal Connects the red test lead 5 Rotary switch Selects measurement functions 6 LIGHT key Turns on and off t...

Страница 21: ...tion of the test signal IR4053 IR4055 The illustration shows the IR4055 1 2 Other functions are the same as IR4056 and IR4057 50 1 500 V 1000 V key Switches between 500 V and 1000 V when using PV rang...

Страница 22: ...and hold right side Fold down or release Description in this manual Turn on the MEASURE key Turn off the MEASURE key Convenient way for performing measurement repeatedly Power OFF Rotary switch statu...

Страница 23: ...lue Blinks when the measured value is greater than the maximum display value Turns on when the measured value is retained Turns on when the comparator judgment is PASS good p 31 Turns on when the comp...

Страница 24: ...the start of measurement Turns on when the comparator function is enabled p 31 Turns on when the instrument is set to the 500 V range or the 1000 V range Pressing turns off the indicator and enables...

Страница 25: ...r functions are the same as the IR4056 and the IR4057 50 Turns on when the PV measurement mode is selected Turns on when selecting 500 V range in the PV measurement mode Turns on when selecting 1000 V...

Страница 26: ...is turned ON while the L9788 10 is connected Refer to Attaching the L9788 92 Breaker Pin p 26 Sleeve 1 2 3 Plug Enlarged tip view 35 16 1 8 3 0 Unit mm 1 Light Lights up interlocked with the backlight...

Страница 27: ...the four double loop split rings and pass the ring through a lug hole on the instrument Secure the strap at 4 positions 2 Insert the batteries p 22 3 Connect the test leads to the terminals EARTH ter...

Страница 28: ...other than those specified especially do not use a fuse with higher rated current or do not short circuit and use the fuse holder Doing so may damage the instrument and result in bodily injury Fuse t...

Страница 29: ...s the wrong way around Do not use batteries after their recommended expiry date Do not leave depleted batteries inside the instrument Replace batteries only with the specified type Use batteries with...

Страница 30: ...n off the rotary switch and remove the test lead from the instrument Rear Battery cover Fuse FF0 5 AH 1000 V 70 172 40 0 500 SIBA GmbH Batteries LR6 4 Check the polarity 2 Loosen the fastening screw a...

Страница 31: ...he LINE terminal of the instrument OFF OK NO 3 Short the test lead tips each other 4 Set the rotary switch to insulation resistance range 5 Turn on the MEASURE key of the L9788 10 Check the red indica...

Страница 32: ...9788 90 Tip Pin Wrench size 7 mm width 2 Remove the tip pin by rotating with a wrench 3 Attach the new tip pin to the L9788 10 by rotating with a wrench Tightening torque 0 3 N m 4 Check the operation...

Страница 33: ...k turn off the MEASURE key and remove the test leads from the measuring object before removing the battery cover After installing or removing the Z3210 be sure to reattach the battery cover and secure...

Страница 34: ...apter option Rear 2 5 2 5 3 4 1 Turn off the rotary switch and remove the test leads 2 Unscrew the screws and remove the battery cover 3 Remove the protective cap with a flat head screwdriver 4 Exerci...

Страница 35: ...white portion insulation layer inside the cable exposed Exposed Do not use and replace with those specified by Hioki if damage is present as you could receive an electric shock Not Exposed 1 Set the...

Страница 36: ...auto power save state Set the rotary switch to OFF and then return it to its original position 3 3 Auto Backlight off Automatic Light off Function The backlight of the instrument will automatically tu...

Страница 37: ...dgment FAIL defective judgment LED display Backlight No change Lights up in green Backlight Lights up in red Lights up in red When using the L9788 10 Test Lead with Remote Switch Red Type of measureme...

Страница 38: ...1 0 2 0 3 0 4 0 5 1 1 2 3 4 5 10 20 30 40 50 Off 500 V PV 500 V 0 1 0 2 2 0 3 0 4 0 5 1 1 2 3 4 5 10 20 30 40 50 100 Off 1000 V 3 PV 1000 V 0 1 0 2 0 3 0 4 2 0 5 1 2 3 4 5 10 1 20 30 40 50 100 200 30...

Страница 39: ...will be used as the judgement reference is displayed IR4053 IR4055 IR4056 REF IR4057 50 COMP 4 4 Press or to select the judgement reference If there is no operation for about 2 seconds after you selec...

Страница 40: ...ls To avoid electric shock do not touch the metal part of the test leads Do not touch the measuring object immediately after measurement Doing so may cause electric shock due to a highly charged volta...

Страница 41: ...ing output even if the MEASURE key is pressed while the rotary switch is set to the 500 V 1000 V or PV range Releasing the lock Turns on Blinks 1 or 1 Set the rotary switch to the 500 V 1000 V or PV r...

Страница 42: ...he 500 V or 1000 V range press to release the lock p 35 Source primary side Load secondary side 6 3 4 5 ON 7 OFF OFF 3 Connect the black test lead to the ground side of the object being measured 4 Con...

Страница 43: ...ntinue measurement release the lock p 35 Displaying 1 minute Values IR4057 50 only This function is only available on the IR4057 50 The function cannot be used if the comparator function has been enab...

Страница 44: ...Characteristics of Measurement Terminals 1200 1000 800 600 400 200 100 0 0 0 1 0 25 0 5 1 10 100 1000 0 05 0 125 Resistance of measuring object M Rated 1000 V Rated 500 V Rated 250 V Rated 125 V Rated...

Страница 45: ...he panel s voltage once discharging ends OFF Without removing the test leads from the measuring object turn off the MEASURE key Discharging Turned on The built in discharge resistor automatically disc...

Страница 46: ...d values can frequently fluctuate due to induction potential even when no voltage is applied This however is not a malfunction Example When measuring the voltage between the circuit and ground 1 2 3 4...

Страница 47: ...ar battery string 1 2 1 Set the rotary switch to V while pressing The and V blinks and ON or OFF is displayed 2 Press to switch between ON and OFF ON Factory setting When the voltage is 1 V or lower r...

Страница 48: ...n be used during low resistance measurement See 3 4 Comparator Function p 31 For accurate measurements be sure to perform zero adjustment before measuring to cancel the wire resistance of the test lea...

Страница 49: ...st lead 3 Turn on the MEASURE key 4 Turn off the MEASURE key to retain the measured value 5 Press 6 6 Do not measure live wires 7 ON 8 OFF 6 Connect the test lead to the measuring object 7 Press and h...

Страница 50: ...ire to be measured with the test leads Arcs or such grave accidents are likely to occur WARNING Observe the following to avoid electric shock shortcircuit or damage to the instrument When measuring in...

Страница 51: ...lls produce electricity continuously during daylight hours resulting in hazardous voltages Exercise care during measurement to avoid electric shock Do not touch any metal parts such as connection box...

Страница 52: ...fore the measured values may take some time to stabilize Accurate measurements are not possible when open voltage of the solar battery string is higher than the test voltage Use the PV 500 V range for...

Страница 53: ...ngs 3 Disconnect lightning arresters from the measuring circuit Disconnection is not required for the figure solar generator facility shown below because a lightning arrester is not present at the str...

Страница 54: ...e of the disconnector device Power conditioner main switch Disconnector devices N terminal Black 5 Ground terminal Red 6 P terminal String 5 Connect the black test lead to the ground terminal 6 Connec...

Страница 55: ...updated every second If there is any deteriorated insulation and the resistance is lower than the reference value do not measure the terminal N of procedure 10 Doing so may damage the solar battery p...

Страница 56: ...est lead from the ground terminal 2 Reconnect the lightning arrester connection if disconnected 3 Turn on all the disconnector devices of the strings 4 Turn on the main switch of the connection box 1...

Страница 57: ...ross application software free of charge GENNECT Cross Official Website https gennect net en cross index 1 IR4057 50 only Install the Z3210 Wireless Adapter option to the instrument p 27 2 Install the...

Страница 58: ...re stable communication verify adequate signal strength Although the GENNECT Cross is provided free of charge downloading or using the application software may incur Internet connection charges Such c...

Страница 59: ...displaying the connection setup screen simply move it close to the IR4055 or the IR4057 50 to automatically pair it with the instrument the app can be paired with up to 8 instruments 4 Returns to the...

Страница 60: ...measurement For more information about each function see the help function in the GENNECT Cross The values displayed by the instrument may be different from the values displayed by the application so...

Страница 61: ...o 50 RH no condensation IR4056 IR4057 50 25 C to 40 C 13 F to 104 F 90 RH or less no condensation 40 C to 65 C 104 F to 149 F at 65 C and below relative with linear decrease up to 25 RH no condensatio...

Страница 62: ...hout Z3210 installed comparator off backlight off measured with measurement terminal open at 500 V range Approx 15 hours with Z3210 installed using wireless communications comparator off backlight off...

Страница 63: ...to earth 600 V AC DC Measurement Category III Anticipated Transient Overvoltage 6000 V Rated operational conditions Position Standard position 90 External magnetic field 400 A m or less Battery voltag...

Страница 64: ...lue 2 M 5 M 10 M 50 M 100 M 1st effective measuring range M 0 200 to 10 00 0 200 to 25 0 0 200 to 50 0 0 200 to 500 0 200 to 1000 Accuracy Tolerance 2 rdg 2 dgt IR4053 and IR4055 4 rdg 2nd effective m...

Страница 65: ...mum displayed value 10 00 M 10 00 M 10 00 M 10 00 M 10 00 M Resolution 0 01 M 0 01 M 0 01 M 0 01 M 0 01 M Display range 100 M 100 M 100 M 100 M 100 M Maximum displayed value 100 0 M 100 0 M 100 0 M 10...

Страница 66: ...n 0 C or greater than 50 C and less than or equal to 65 C Only for IR4056 and IR4057 50 Effect of humidity 4 rdg and within allowance 8 rdg and within allowance 2 rdg 6 dgt Effect of magnetic field 2...

Страница 67: ...rated measurement voltage Lower limit resistance value to be maintained rated measurement voltage 0 05 M 0 125 M 0 25 M 0 5 M 1 M Rated current 1 mA to 1 2 mA Short circuit current 1 2 mA or less Resp...

Страница 68: ...llowance Response time Within 1 s measurement terminal open short Possible number of measurements 200 times or more Overload protection 600 V AC 10 s by fuse protection Zero adjustment range 0 to 3 Di...

Страница 69: ...ement Input resistance 100 k or more 50 Hz 60 Hz Frequency range 50 Hz 60 Hz Range configuration Display range Auto range Maximum displayed value Resolution Accuracy 420 V minimum displayed value 30 0...

Страница 70: ...posing DC voltage Within 10 Possible number of measurements 1000 times or more Overload protection 660 V AC 10 s 1200 V DC 10 s Display update interval no update during response Within 1 0 s Open volt...

Страница 71: ...ess IR4053 and IR4055 800 k or less IR4056 and IR4057 50 Maximum capacitive load 5 F Discharge time Max 30 s when connected to 5 F Auto power save APS The power will go off automatically approx 10 min...

Страница 72: ...66 Functionality specifications HIOKI IR4057B961 00...

Страница 73: ...ecautions when transporting the instrument When transporting the instrument be sure to observe the following precautions To avoid damage to the instrument remove the batteries from the instrument More...

Страница 74: ...es Replace the batteries with alkaline batteries p 22 The MEASURE key is not working for the lead with a switch Is the plug of the lead with a switch fully inserted Fully insert the plug to the limit...

Страница 75: ...instrument locked so as to prevent inadvertent voltage application Release the lock function p 35 In the 500 V range 1000 V range or PV range turning on the MEASURE key enables the lock function that...

Страница 76: ...tion When the measuring object connected is a capacitor Does the measuring object have a large capacitance component capacitor If it is possible to remove the capacitor do so If not use the lowest mea...

Страница 77: ...nce increases Is there any impact due to the temperature humidity characteristics of the measuring object Measure the object under the same temperature and humidity conditions In general an insulator...

Страница 78: ...the insulation of the test lead deteriorated Replace the deteriorated test lead with a new one 1 Batteries with high internal resistance may not be able to deliver enough energy to power the instrumen...

Страница 79: ...ings of up to 3 Ensure that the wiring resistance is 3 or less p 42 The specified fuse has not been installed Use only the specified type of fuse p 22 Err2 Settings data damaged Repair is required Err...

Страница 80: ...in measurement circuit Replace the batteries If there is no apparent improvement the instrument needs repair Err5 02 Abnormality in voltage generation circuit Err8 Z3210 communications error connectio...

Страница 81: ...ance Rx is calculated by applying a current I to the measuring object measuring the voltage V that occurs between the measurement terminals as a result and dividing the voltage V by the current I 3 PV...

Страница 82: ...nce quantity Operation range Variation Insulation resistance Low resistance A Intrinsic uncertainty Reference condition 5 rdg 3 rdg 2 dgt E2 Supply voltage 4 5 V to 6 8 V 4 rdg 3 rdg 2 dgt E3 Temperat...

Страница 83: ...as shown in the following figure current being generated influences the insulation resistance meter resulting in inaccurate measurement with a normal insulation resistance meter PV measurement mode of...

Страница 84: ...Appx 4 Insulation Resistance Measurements for Solar Cell Array HIOKI IR4057B961 00...

Страница 85: ...HIOKI IR4057B961 00...

Страница 86: ...HIOKI IR4057B961 00...

Страница 87: ...HIOKI IR4057B961 00...

Страница 88: ...ctions Nov 2018 Revised edition 2 BT3554A966 02 A961 03 18 11H Manuel d instructions Nov 2018 Revised edition 2 BT3554A966 02 A961 03 18 11H BT3554 10 BT3554 01 BT3554 11 TESTEUR DE BATTERIE BATTERY T...

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