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Megger SR-98, Инструкция по эксплуатации

Мультиметр Megger SR-98 - надежный инструмент для проведения электрических измерений. Получите подробные инструкции по использованию в бесплатном руководстве, которое можно скачать с manualshive.com. Откройте для себя всю мощь этого прибора для вашей работы с электричеством.

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85

Dimensions

 

 

Unit Enclosure: 

17.75 H x 16.5 W x 15.5 D in. 
444 H x 416 W x 387 D mm 

 

Weight:

 

 
51.5 lb. (23.4 kg) Cover Lid On 

 

48.8 lb. (22.2 kg) Cover Lid Off 

 

 

OPTIONS AND ACCESSORIES  

 

Included Accessories 

Description  

Part 

Number 

Line cord, North American (Model SR-98-1/60)  (1 ea.).............................................................  620000 
Line cord, Continental Europe (Model SR-98-3/50) (1ea.) ...........................................................  50425 
Line cord, International (Model SR-98-2/50 ) (1 ea) .....................................................................  51874 
Instruction Manual (1 ea)..............................................................................................................  51187 
15 A Input Fuse, (for 120 Volt input) (5 ea.) T rated .....................................................................     963 
 8 A Input Fuse, (230 Volt input) (5 ea.) T rated  ...........................................................................     962 
Test Lead, red, 200 cm, use with voltage outputs and timer (3 ea.) CAT II  ..............................  684000 
Test Lead, black, 200 cm, use with voltage outputs and timer (3 ea.) CAT II  ...........................  684001 
Lug Adapter, red, 6.2 mm, use with voltage outputs and timer (2 ea.) CAT II ...........................  684002 
Lug Adapter, black, 6.2 mm, use with voltage outputs and timer (2 ea.) CAT II  .......................  684003 
Lug Adapter, red, 4.1 mm, use with voltage outputs and timer (2 ea.) CAT II ...........................  684004 
Lug Adapter, black, 4.1 mm, use with voltage outputs and timer (2 ea.) CAT II  .......................  684005 
Alligator Clip, red, use with voltage outputs and timer (1 ea.) CAT II  ........................................  684006 
Alligator Clip, black, use with voltage outputs and timer (1 ea.) CAT II .....................................  684007 
Test Leads, red/blk, use with current output (includes spades) (1 pr.) CAT II  ..............................  7934 
Carry Case, Test Lead  ..............................................................................................................  684008 

NOTE: SR 98-3/50 comes with line cord and instruction manual only (no test leads) 

Optional accessories are:

 

 

#4 High Current Test Leads, 5 ft. [1.5 m] (1 pr.),  
use when testing molded case breakers  ........................................................................................  2265 
SR-98 Software ...........................................................................................................................  750014 

 

For three-phase applications, an optional Phase Angle Meter (PAM) interface cable is required 
to interface the SR-98 to Megger Three-Phase Phase Shifters.  

 

Cable, Interface, for Models EPS-1000 and PVS-1000 (1ea ......................................................... 51680 
Cable, Interface, Master/Slave, for SR-98 to SR-98 (1ea)............................................................. 51679 
 

 

Содержание SR-98

Страница 1: ...nds to protect and enforce its rights under state law To the extent the program is deemed to constitute a form of expression of idea Megger Corporation intends to protect and enforce its rights under...

Страница 2: ...contained within this instruction manual are proprietary with Megger The equipment described herein may be protected by one or more U S letters patent MEGGER specifically reserves to itself all right...

Страница 3: ...that should be taken by the operator Where applicable IEC safety markings have been placed on the instrument to notify the operator to refer to the instruction manual for instructions on safety relat...

Страница 4: ...ds UNDER NO CIRCUMSTANCES SHOULD THE OPERATOR PUT HIS HANDS OR TOOLS INSIDE THE TEST SYSTEM CHASSIS WITH THE TEST SYSTEM CONNECTED TO A POWER SOURCE LETHAL VOLTAGES ARE PRESENT AND MAY CAUSE SERIOUS I...

Страница 5: ...een 18 VOLTAGE RELAY Test Screen 18 POWER RELAY Test Screen 19 SYNC Synchronizing RELAY Test Screen 20 RECLOSE RELAY Test Screen 21 TIMER RELAY Test Screen 21 SELECTION OF OUTPUT TERMINALS 22 CURRENT...

Страница 6: ...T DIFFERENTIAL RELAYS 54 TESTING PHASE SEQUENCE UNDERVOLTAGE RELAYS 61 MOLDED CASE CIRCUIT BREAKERS 66 TIMING TEST OF MOLDED CASE CIRCUIT BREAKERS 67 MOTOR OVERLOAD RELAYS 69 PARALLEL PRINTER PORT 70...

Страница 7: ...in both Seconds and Cycles Depending on type of test selected other values may be displayed such as Ohms Watts VARS Phase Angle Frequency or Power Factor The independent outputs enable the SR 98 to pr...

Страница 8: ...int tests on transformer differential relays When interconnected there will not be more than a 3 phase shift between the two main current outputs same output taps An optional interface cable is availa...

Страница 9: ...put fuses are located on the backside of the top cover next to the input power connector They protect the input power portion of the test set If this fuse is blown the unit will not operate Fuse shoul...

Страница 10: ...nals 15 These output terminals are used to provide DC voltage or DC current to the device under test The output is controlled by the Control Knob 18 0 250 VDC MAX Up to 250 Volts DC is available from...

Страница 11: ...d by the meter display which will light up when the unit is energized Digital Display 20 The digital display is a LCD panel with a resolution of 128 X 256 pixels It indicates metered quantities of ac...

Страница 12: ...reen highlighted function up down right and left on the screen It works in conjunction with the rotary knob to change the highlighted function INPUT POWER There are two versions of the SR 98 One is ra...

Страница 13: ...with a standard 10 Amp International Color code power cord as shown below The cord is ready for wiring to the appropriate plug depending on country The following colors apply Brown Line Blue Neutral a...

Страница 14: ...uage Select Screen or Master Slave Select change the screen contrast with the UP DN arrow keys TEST MENU Screen The Test Menu Screen allows the user to select which type of relay to test metering or t...

Страница 15: ...manual LANGUAGE SELECTION Screen This screen allows the user to select the desired operating language of the test set Using the arrow keys highlight to the desired language and press the SELECT funct...

Страница 16: ...the application of an AC DC voltage across the trip output of the device under test The Timer starts or stops when an AC potential 60 300 Volts RMS or DC potential 5 300 Volts is applied Note CATII i...

Страница 17: ...error will result MON C Monitor Continuity The function of this position is to monitor the change of state of normally open or closed dry contacts of the device under test The TRIP lamp will light at...

Страница 18: ...The user can select to turn the Monitor Horn ON or OFF The horn sounds when the relay contacts close In the event that the contacts are normally closed the horn would sound continuously until they ar...

Страница 19: ...en you set your test current for the first test point let s say the indication is 8 To quickly adjust the test current for the next point 4 X adjust the indication to 16 go to the Momentary Mode a giv...

Страница 20: ...To change the Ramp speed use the cursor arrows to highlight the Ramp window Rotating the knob either direction changes the selected ramp rate from Normal to Fast to Slow back to Normal Once selected u...

Страница 21: ...allows the operator to select MOM Momentary MAINT Maintained or CA Current Actuate operation of the CURRENT MAIN output The MOM mode is used to set test currents quickly and reduces heating of the dev...

Страница 22: ...ies Many of the same measured values seen in the OVERCURRENT RELAY Test Screen are in the IMPEDANCE RELAY Test Screen see descriptions in the OVERCURRENT RELAY Test Screen The two primary differences...

Страница 23: ...The phase angle display is the measured phase angle between the AC CURRENT MAIN output and the AC AUX Output It displays Current lagging Voltage Since some directional elements are tested with curren...

Страница 24: ...E RELAY Test Screen is used to test all single phase AC under and overvoltage relays The SET FAULT VOLTS button is used to preset the desired fault under or over voltage value AC VOLTS 00 0 V The valu...

Страница 25: ...Then the normal is set and displayed on the AC VOLTS display When the test is initiated the normal voltage is removed and the fault is applied The timer is started when the fault voltage is applied Wh...

Страница 26: ...h common and the AC AUX 300 V 0 25 A output terminals The measured voltages are labeled M for the 230 V CURRENT MAIN and AUX for the AC AUX output The DC VOLTS and Timer displays are the same as the O...

Страница 27: ...s that the relay is set for As the relay goes through each reclose operation the appropriate RECLOSE TIME is recorded for each operation A maximum of 10 reclose operations shots may be recorded TIMER...

Страница 28: ...ances If necessary a RESISTOR BANK see Description of Controls and Instrumentation item 7 is provided to series with the current output Adding additional resistance in series with the relay coil requi...

Страница 29: ...wo SR 98 units together requires the optional interface cable part number 51679 Simply plug the interface cable into the two interface terminals prior to turning the units on From the POWER UP Screen...

Страница 30: ...nal connection tightness is particularly important If they become loose excessive heating of the terminals and poor current output will result 4 Insulation Check wiring and other insulated components...

Страница 31: ...Applied Removed limits and contact or circuit resistance too great for the Dry Contact gates to operate properly on the Monitor Stop gate Other common causes are blown or tripped fuse s cracked broke...

Страница 32: ...e Timer will not stop when using the CURR X Current Actuate mode check to make sure the Timer Start Latch is OFF If the Timer will not Start when Initiating the output check to make sure the Timer Sta...

Страница 33: ...wn Below is a list of the alarm messages that may be displayed PFC1 Over Current PFC1 stands for Power Factor Corrector 1 This alarm indicates that there was a overcurrent condition on PFC1 This could...

Страница 34: ...ted just above the control knob see Item 17 on Page 1 Unit Illustration Then move the test lead to the next higher output terminal and repeat your test AUX Over Temp This alarm indicates that there is...

Страница 35: ...This warranty is limited and shall not apply to equipment which has damage or cause of defect due to accident negligence improper operation faulty installation by the purchaser or improper service or...

Страница 36: ...he following OVERCURRENT test procedure can apply to all electro mechanical solid state and microprocessor overcurrent voltage controlled overcurrent and voltage restrained overcurrent relays For dire...

Страница 37: ...o zero Timing Test Preset Fault Current 5 Pressing the MODE SELECT button change from MAINT Maintain to MOM Momentary 6 Press the INIT Button The output current should turn on for a short pulse durati...

Страница 38: ...st This test is normally conducted on relays which have two sets of contacts one associated with the trip contacts and the other associated with the back stop 15 Connect Trip contacts to Timer Start G...

Страница 39: ...UX terminals With the arrow key highlight the DC VOLTS and press the DC Button Increase the DC voltage output by rotating the Control Knob until proper logic voltage is applied If the relay is AC volt...

Страница 40: ...ECT This changes the output from DC VOLTS to DC AMPS 3 Block the trip contacts closed 4 Press the DC AUX on button Increase the DC current by slowly rotating the Control Knob Note if the seal in coil...

Страница 41: ...als to the DC AUX terminals With the arrow key highlight the DC VOLTS and press the DC Button Increase the DC voltage output by rotating the Control Knob until proper logic voltage is applied OHM Pick...

Страница 42: ...he AC Voltage or increasing the AC Current until well inside the operating characteristic TRIP LED stays ON 10 Using the arrow key highlight the phase angle display Using the Control Knob vary the Pha...

Страница 43: ...the DC AUX terminals With the arrow key highlight the DC VOLTS and press the DC Button Increase the DC voltage output by rotating the Control Knob until proper logic voltage is applied PICKUP and DROP...

Страница 44: ...he following screen should appear See TIMER SETUP Screen description for desired setting changes Settings for a typical normally open contact timing test are as follows 5 Select Start Option to INITIA...

Страница 45: ...ls to the relay directional potential coil or input note polarity Note If relay is solid state or microprocessor based and requires a DC logic voltage prior to applying test connect the relay dc power...

Страница 46: ...ristic directional contacts are closed 9 Using the arrow key highlight the phase angle display Using the Control Knob vary the Phase Angle clockwise until the contacts open and the directional contact...

Страница 47: ...the relay dc power terminals to the DC AUX terminals With the arrow key highlight the DC VOLTS and press the DC Button Increase the DC voltage output by rotating the Control Knob until proper logic vo...

Страница 48: ...p contacts just close Read and record the WATTS indicated for pick up value Max Angle of Torque Test 9 Continue decreasing the AC Voltage or increasing the AC Current slightly until well across the op...

Страница 49: ...be in the trip direction 5 Pressing the MODE SELECT button twice to change from MOM Momentary to CA Current Actuate to MAINT Maintain The current value selected in Momentary mode will be remembered 6...

Страница 50: ...Relays From the TEST MENU Screen select SYNC RELAY The following test screen should be displayed Connect Relay Closing contacts to STOP MONITOR gate Connect the 230 V 4 A AC CURRENT MAIN to the relay...

Страница 51: ...ntrol Knob adjust the AC AUX Volts until the contacts just close for pick up Record the pick up value 7 Continue to increase voltage until contacts just open for drop out Record the drop out value Clo...

Страница 52: ...ary to CA Current Actuate to MAINT Maintain 5 Press the TIMER SETUP Button The following screen should be displayed See TIMER SETUP Screen description for desired setting changes Settings for a typica...

Страница 53: ...If relay is solid state or microprocessor based and requires a DC logic voltage prior to applying test connect the relay dc power terminals to the DC AUX terminals With the arrow key highlight the DC...

Страница 54: ...eal in coils see DC TARGET AND SEAL IN under OVERCURRENT RELAY Test From the TEST MENU Screen select DC RELAY The following test screen should be displayed Connect DC potential coil to the DC AUX outp...

Страница 55: ...the DC AUX output voltage by rotating the Control Knob to the desired test voltage 4 Turn the output off by pressing the DC AUX Button Press the TIMER SETUP Button The following screen should appear 5...

Страница 56: ...tion to V REMOVED Voltage Applied 4 Select Stop Option to N CLOSED assuming Normally Closed trip contacts 5 Select Start and Stop Latch ON 6 Press PREV SCREEN 7 Press TIMER RESET Button Press the DC A...

Страница 57: ...ingle phase meter AC or DC voltages up 600 Volts and AC or DC currents up to 6 Amperes may be measured Other measured and calculated values are simultaneously displayed such as Phase Angle current lag...

Страница 58: ...sting applications for the timer Megger could suggest various procedures but correct method of timing devices depends entirely on the recommendations of the manufacturer of the device and the preferen...

Страница 59: ...ired Stop Option i e N OPEN Normally Open Set the Stop Latch to the desired setting For example if it is desired to have the timer stop upon the first stop signal only ignore contact bounce set the St...

Страница 60: ...y one SR 98 to perform From the TEST MENU Screen select CURRENT RELAY The following test screen should be displayed Connect Relay Trip contacts to STOP MONITOR terminals Note If relay is solid state m...

Страница 61: ...ld turn on for a short pulse duration If the current was returned to zero in step 4 the current displayed should be approximately zero 7 Rotate the Control Knob and press the INIT Button A new current...

Страница 62: ...until the instantaneous element picks up 4 Read and record the Pick up current Return the current to zero DC Target and Seal In Test Many different types of relays use DC target and seal in coils DC t...

Страница 63: ...polarity Connect the two Common returns to the same relay terminal 1 AC AMPERES should be highlighted on both Master and Slave units 2 With both units MODE SELECT set to MAINT MAINTAIN press the ARM M...

Страница 64: ...s to STOP MONITOR terminals Note If relay is solid state microprocessor based or has a DC auxiliary relay that requires a DC voltage prior to applying test currents connect the appropriate relay termi...

Страница 65: ...LED turns ON and the horn sounds if the horn is set on 8 Read and record the two currents Turn off the AC CURRENT MAIN outputs off by pressing the Master Unit SOURCE RESET button turns all outputs off...

Страница 66: ...ental 2 2nd Harmonic 2 For example a Westinghouse type HU harmonic restraint relay set for a 15 harmonic restraint might have typical values of 1 Ampere 2 nd Harmonic Current Slave Unit and 8 2 Ampere...

Страница 67: ...se Voltage Relay The SYNCH RELAY Test Screen is used to test reverse phase voltage relays which can be tested using an Open Delta test potential This procedure applies to relays that require a balance...

Страница 68: ...Using the arrow key highlight the AC VOLTS AUX Press the AC AUX button to turn the AC AUX Volts on 4 Rotate Control Knob and increase AUX AC Voltage output to approximately the same test voltage as th...

Страница 69: ...d the High Voltage Pick up Test move the MONITOR leads from the High Voltage Contacts to the Low Voltage contacts and proceed to step 5 Otherwise connect the Low Voltage contacts see Test Connections...

Страница 70: ...from MOM Momentary to CA Current Actuate then to MAINT Maintain 7 Press the TIMER SETUP Button The following screen should be displayed See TIMER SETUP Screen description for desired setting changes S...

Страница 71: ...imer will stop indicating the trip time 1 Repeat steps 1 through 5 for the Pick Up High Voltage Contacts Test Adjust both voltages up to a voltage slightly higher than the High Voltage Pick up value i...

Страница 72: ...the circuit breaker It is of course easiest to make connections and perform the test on circuit breakers if they are removed from the circuit However it is not necessary to remove the circuit breaker...

Страница 73: ...elect CURRENT RELAY The following test screen should be displayed Connect AC CURRENT MAIN to the circuit breaker Timing Test 1 AC AMPERES should already be highlighted 2 Pressing the MODE SELECT butto...

Страница 74: ...ion to INITIATE 8 Select Stop Option to CURR X Current Actuate Note that if the CA mode was selected earlier the CURR X option was automatically selected for you 9 Select Stop Latch ON if not already...

Страница 75: ...relay under test should be kept as short as possible and should be twisted to minimize the losses caused by inductive reactance Run the test see TESTING TIME DELAY OVERCURRENT DEVICES and note the ti...

Страница 76: ...DATA BIT 4 OUTPUT 7 DATA BIT 5 OUTPUT 8 DATA BIT 6 OUTPUT 9 DATA BIT 7 MSB OUTPUT 10 ACKNOWLEDGE INPUT 11 BUSY INPUT 19 25 SIGNAL GROUND Other pins are not used RS232 SERIAL DATA PORT The serial data...

Страница 77: ...used to transmit data from the SR 98 to the computer for data analysis and report generation The SR 98 can be programmed to change Menu Screens Select a language Setup the timer or Specify a relay to...

Страница 78: ...ow Synch Relay rsyn Reclosing Relay rrecl Timer rt From the Timer Setup Screen Function Selection Command Start Option Voltage Applied tstava Voltage Removed tstavr Normally Open tstano Normally Close...

Страница 79: ...del4 5 Cycles del5 6 Cycles del6 7 Cycles del7 8 Cycles del8 9 Cycles del9 10 Cycles del10 Prev Screen Exit Timer Setup tsexit From any test screen Function Selection Command RAMP NORMAL mrampn FAST m...

Страница 80: ...ield Selection Command MAIN MAIN CURRENT mmi MAIN VOLTAGE mmv AUX AC AUX maux DC DC VOLTS mdv DC AMPS mdi PHASE ANGLE mph From Relay Test Screen Function Selection Command Set Fault Set Fault Voltage...

Страница 81: ...firmware qver Data String Format All queried data will be in one format string using commas for delimiters between values A carriage return line feed will end the line of data If a value is not avail...

Страница 82: ...1 and 12 are associated with the main current output terminals Reference point 13 is the external voltage and current measurement terminals Points 14 15 and 16 are associated with the AC DC AUX voltag...

Страница 83: ...OHM SELECT function button APPLICATIONS The combination of single phase AC voltage AC current with a variety of fixed output frequencies and phase shift capability DC voltage and DC current provides...

Страница 84: ...splay screen prompts operator The display screen prompts the user with easy to understand and use function keys Single button operation saves time in testing relays and reduces human error Display scr...

Страница 85: ...traint on transformer differential relays Multi purpose test system saves time and money Circuit breaker simulator Normally closed and normally open contacts are provided to simulate breaker operation...

Страница 86: ...using the CURRENT RELAY test screen All single phase impedance type relays and some three phase relays that can be tested single phase with the voltage coils in parallel and currents in series are te...

Страница 87: ...mple at the selected output frequency of 180 Hz you can get 110 Amperes at 7 7 Volts from the 115 Amp output tap while at 300 Hz you get less than 95 Amperes at 6 7 Volts into the same load For more i...

Страница 88: ...Angle Power Reactive Power and Power Factor The large characters and variable contrast make the display easy to read from 3 to 4 feet 1 meter away even in direct sunlight All accuracy stated below ar...

Страница 89: ...tes 1 Timer will start stop or continuity indicator darkens at the opening of normally closed contacts or when conduction through a semiconductor device such as a triac or transistor is interrupted 2...

Страница 90: ...oads Ancillary Interface A voltage signal output in phase with the main current output 3 is provided to input into the MEGGER Models EPS 1000 or PVS 1000 for phase reference This will allow testing of...

Страница 91: ...ack 6 2 mm use with voltage outputs and timer 2 ea CAT II 684003 Lug Adapter red 4 1 mm use with voltage outputs and timer 2 ea CAT II 684004 Lug Adapter black 4 1 mm use with voltage outputs and time...

Страница 92: ...isplay Screen 50501 Fuse Holder 51438 Connector Female Voltage Red 51698 Connector Female Voltage Blk 51699 Power Supply 60 W 50704 Filter Printer Circuit Bd Assy 50759 Fan SQRL 51223 Enclosure Plasti...

Страница 93: ...87...

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