+ All Categories
Home > Documents > Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is...

Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is...

Date post: 11-Mar-2018
Category:
Upload: vuduong
View: 216 times
Download: 2 times
Share this document with a friend
12
For letter: P.O. Box 41016 6308 Larnaсa, Cyprus E-mail: [email protected] Internet: www.vitaldrive.net Phone: + 357 24821788 secretary Fax: + 357 24821787 Holding company ”EMZ” Head office and Factory: Free Trade Zone, Kalo Chorio, Larnaca, Cyprus RN HE 132211; IN 9.84 Number ФПА (VAT) 10132211L Cable Test Module ( HVT-25) Single-phase connection to object HVT-25 is intended for the following work performance: · Tests of power cable lines with paper-oil insulation and operating voltage up to 25 kV; · Tests of power cable lines from XLPE with operating voltage up to 25 kV; · Fault locating in power cables with operating voltage up to 25 kV with the use of equipment and devices for preliminary and exact location. Laboratory performs the following functions: 1. Test of cables by the raised VLF voltage 0,1 – 0,02 Hz 2. Test of cables by the raised rectified voltage with the control of leakage current 3. Measurement of resistance of cables insulation 4. Burning of damages insulation of power cables 5. Measurement of distance to fault location in cable by pulse method and arc reflection method 6. Cable fault locating by acoustic method 7.. Cable fault locating by inductive method A. HIPOT TEST 1. MAIN EQUIPMENT. Laboratory equipment is provisionally subdivided into the main equipment (assembled) and additional equipment (completed). Such division allows planning buildup of laboratory functions, increasing its efficiency. A1. DC HIPOT TEST 1.1.Equipment DC Hipot / Megohmmeter PTS- 75F (USA) The PTS Series of Portable DC Test Sets are combination high voltage proof testers and high voltage Megohmmeters. Testing dielectric strength and insulation resistance is now served with one instrument that is designed and constructed with field use in mind.
Transcript
Page 1: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

For letter: P.O. Box 410166308 Larnaсa, Cyprus

E-mail: [email protected]: www.vitaldrive.net

Phone: + 357 24821788 secretaryFax: + 357 24821787

Holding company ”EMZ” Head office and Factory: Free Trade Zone, Kalo Chorio,

Larnaca, Cyprus RN HE 132211; IN 9.84

Number ФПА (VAT) 10132211L

Cable Test Module ( HVT-25)Single-phase connection to object

HVT-25 is intended for the following work performance:· Tests of power cable lines with paper-oil insulation and operating voltage up to 25 kV;· Tests of power cable lines from XLPE with operating voltage up to 25 kV;· Fault locating in power cables with operating voltage up to 25 kV with the use of

equipment and devices for preliminary and exact location.

Laboratory performs the following functions:

1. Test of cables by the raised VLF voltage 0,1 – 0,02 Hz2. Test of cables by the raised rectified voltage with the control of leakage current3. Measurement of resistance of cables insulation4. Burning of damages insulation of power cables5. Measurement of distance to fault location in cable by pulse method and arc reflection method6. Cable fault locating by acoustic method7.. Cable fault locating by inductive method

A. HIPOT TEST

1. MAIN EQUIPMENT.Laboratory equipment is provisionally subdivided into the main equipment (assembled) and additionalequipment (completed). Such division allows planning buildup of laboratory functions, increasing itsefficiency.

A1. DC HIPOT TEST

1.1. Equipment DC Hipot / Megohmmeter PTS- 75F (USA)

The PTS Series of Portable DC Test Sets are combination high voltage proof testers and high voltageMegohmmeters. Testing dielectric strength and insulation resistance is now served with one instrument thatis designed and constructed with fielduse in mind.

Page 2: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

2

Advantages of PTS Portable DC Test Sets:· Five range current meter with a 0-1 uA low range for Leakage Current measurements· 10 mA output current rating for fast charging· Resistance measurements at any output voltage· Regulated input for accurate, reliable results (ideal for field generator use) ± 1% stability with ± 10%

line change· Ripple less than 2.5% RMS· Internal HV shorting solenoid with discharge resistor· Continuous Duty Operation· Automatic transit protected meters

Rugged case with cushion grip handles and shorting stick included

A2. AC HIPOT TEST

1.2 Equipment AC Hipot VLF-4022CM(F)TECHNICAL SPECIFICATIONSDESCRIPTION

A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than50/60Hz. Although the frequency is very low, it is still an alternating current with polarity reversalsevery half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power toapply an AC voltage to a capacitive load, like a long cable. There is no better way to verify the ACintegrity of a cable than to hipot it with AC voltage. VLF hipots are used to provide a go/no-go, orpass/fail, voltage withstand test. It can also be used as the voltage source for diagnostic cabletesting.

Page 3: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

3

FEATURES

· Portable and affordable/ Simple and easy operation· True sine-wave output/ Highest load ratings available· Waveform is independent of load capacitance between 0.01 mF and maximum load· AC testing does not degrade good cable insulation· Harmful space charges are not injected into the cable insulation· No travelling waves are generated during testing· Rugged and reliable design less prone to failure from transients· Much easier to service compared to units with solid state design

CONTROLLED ENERGY CAPACITOR DISCHARGE SYSTEMSSURGE GENERATOR/THUMPER

1.3. CDS-2010U

DESCRIPTIONWith its 20kV output, the CDS-2010U is good for faultlocating cables rated up to 35kv, having a line to groundvoltage of 20kV. The high burn current of 400mA can beused to condition a fault to reduce its arc over voltage topermit thumping at a lower and less damaging voltagelevel, yet still at full energy. The CDS-2010U can thumpa cable at just 5kV yet deliver 1000 joules. Find yourfault without making more. There is no better thumper.The CDS-2010U offers the complete package: three fulljoule output voltages, three variable hipot outputs, thehighest burn current, rapid discharge rate, tdr/radar ready, and its rugged design holds up to years ofuse. Another plus: all CDS Thumpers use EPR high voltage output cable rather than XLPE. EPRstays flexible in cold weather.FEATURES

· Single piece combination Hipot, Burner and Fault Locator· Constant energy at each output voltage setting· Variable discharge rate from 6 – 10 seconds· Motorized output voltage tap switch· Internal Arc Reflection Filter, standard on all units· Simplified Controls for minimal operator training· Highest burning capability, compared to other units of same size· Single pulse or continuous discharge modes· Side mounted storage reel to hold cables and accessories· Output vise clamps for assured contact to test cable and ground· Operation from either line, generator or inverter· Manually operated internal heater to minimize excessive moisture buildup

Page 4: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

4

VERY LOWFREQUENCY

TESTING (VLF)

B.1 Arc Reflection & Puls Reflection Methods

1.4.DIGITAL CABLE RADAR TDR-1669DESCRIPTION

The Digital Cable Radar is a multi-function cable fault locator and an excellent and highly accurateportable measuring instrument to check problem and distance to events on cable. The TDR-1669shows the continuity of characteristic impedance along the cable under test applying electricalpulses, which is ideal for checking faults (such as complete open & short, partial open & short,loose connection, broken lines etc.) on any cables which consist of at least two metallic conductors.

FEATURES

· Range up to 30km· Adjustable pulse width from 50ns to 3µs· TFT Enhanced color Liquid Crystal Display· Two cursors for distance measurement· Real time trace display· Trace storage capability· RS-232 interface for computer storage & printout / CD-ROM with

software for downloading -reading measurements

Page 5: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

5

TECHNICAL SPECIFICATIONSMeasuring Range Continuously adjustable in 10% increments of

displayed rangePulse Width Automatic with range selection

Manual: 50ns, 100ns, 200ns, 1s, 2s, 5s, and 10sExponential pulse shape for improvedreflections on transformers and splices

Sampling Rate 100 MHzAccuracy 1 Sample (crystal controlled)Screen High brightness color VGA TFT LCD, 8.4” (21

cm) diagonalVelocity ofPropagation

Predefined from cable menuManual: 200 ft/s to 492 ft/s (61 m/s to 150m/s)

Display Modes Real time mode (always visible) and storedtrace

Testing Modes TDR real time modeDistanceMeasurement

Adjustable, with two vertical cursors

StorageCapability

Over 100 traces may be stored and recalledfrom internal disk

User Setup Measurements in feet or meters (optional)Quick startup settings, APF and Easy Mode

PowerRequirements

90-230V, 50/60Hz input12V DC External (Option)

OperatingTemperature

-20 to 40 oC

Dimensionsand Weight

14” w x 10.5” d x 6.25” h, 12lbs356mm w x 267mm d x 159mm h, 5.4 kg

1.4.1 CONNECTING DEVICE AR-20 (for stabilization of electric arc)

It allows finding distance to the defect both by classic pulse, and by highvoltage method with the use of pulses reflected from the arc in cable(method Arc Reflection). It gives the possibility to quickly find distance notonly to the low resistance, but also to complicated high resistance faults inpower cables without usage of burn down unit (in RF it got a name «non-burning method»). Connecting device is used for the application of thismethod (photo up right).

B.2 Induction Method

1.5. PORTABLE CABLE LOCATORMEGGER L1070

DESCRIPTIONCapable of locating long or short ranges, inductive or conductive, active or passive, the L1070delivers quick and accurate results with a user-friendly interface. A special design feature on the

Page 6: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

6

L1070 allows the user to select and compare receiver information on twofrequencies simultaneously, without having to return to the transmitter. TheL1070 features push-button depth measurements up to 15 feet to quickly identifyservice depths prior to digging. A passive 60 Hz detection services as an excellentsafety feature for identifying live underground primary and secondary utilitycables. An optional ground return probe allows ground fault detection onunshielded electric services or sheath faults on telephone services through thetechnique of voltage gradient.

FEATURES

· Multiple transmit/receive frequencies provide accurate long or short rangelocates.

· Push-button depth measurements up to 4.6 m quickly identify service depths prior todigging.

· Passive 60 Hz detection serves as an excellent safety feature for identifying liveunderground primary and secondary utility cables.

· Passive detection also allows convenient locating of energized electric services.· High power at low frequency solves the difficult multipoint grounded utility locating

problem.

TECHNICAL SPECIFICATIONS

TRANSMITTEROperating Frequency 82 kHz, 8 kHz, 815 Hz, and

BOTH (815 Hz/82 kHz)simultaneously

Indicators AC Load ResistanceMeasurement, Low BatIndicator, Low Bat warningmodulated on output signalevery 20 seconds

Load Matching Automatic from 5 to 2000 OhmOutput Power815 Hz and 8 kHz82 kHzBOTH (815 Hz/82 kHz)

Normal 0.6 W High 2.0 WNormal 0.2 W High 1.0 WNormal 0.12 W + .06 WHIGH 1.33 W + 0.67 W

Battery Type Disposable Eight 1.5 V D size alkalineBattery Life DisposableContinuous

8 to 15 hours depending on load,frequency and power setting

Intermittent 40 to 60 hours depending onload, frequency and powersetting. 25% duty cycle average

Operating Temperature Range -4° to +133° F (-20° to +55° C)Dimensions 15.2 H x 12.7 W x 40.6 L cmWeight 3.6 kg with alkaline D cell

RECEIVEROperating Frequency 815 Hz, 8 kHz, 82 kHz,

50/60~(PASSIVE)Antenna Mode Null-responding vertical coil

Peak-responding horizontal coil

Page 7: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

7

Current Measurement Display indicated relativecurrent simultaneously betweenany two selected cables fortarget cable verification in amulti-conductor environment

Operating and StorageTemperature Range

-20° to +55° C

Battery Type Six 1.5 V C size alkalineBattery LifeContinuous

40 hours

Intermittent 82 hoursAuto power shutoff after 10minutes of nonuse

Signal Strength Analog LCD Bargraph.Absolute Digital Signal Strengthreadout from 0 to 999

Gain Control Up/Down button for automaticcentering and manual control

Manual Bubble-level triangulation forverification of automatic readoutin congested environments

Note Accuracy is dependent on siteconditions, nonconcentricconductor shape, number ofnearby conductors, and soilreturn currents

Dynamic Range 126 dBDepth MeasurementAutomatic

Push-button 3 digit readout to15 ft in feet/inches, (optionalmeter/centimeters to 4.6 m)

Dimensions 23.8 W x 9.3 W x 76.9 L cmWeight 1.36 kg

B.3 Acoustic Method

1.6.SUPER DIRECTIONAL ACOUSTIC DETECTORAQUATRONICS S.D.A.D

DESCRIPTION

Ease and speed of fault finding with a thumper have been greatlyenhanced with the addition of the S.D.A.D. The Super DADconveys more information about the fault location, and faster, withthe addition of new microprocessor controlled electronics thatprovide bright, easier-to-see-and-read signals - day or night.FEATURES

· Dual channel system designed to work with any brand thumper· Ultra-high speed clock indicates direction to the fault· Soft coil microphones (earth probes) with tri-pod bases for hard surface location· Ballistic impulse detector visually confirms the presence of the “thump”

Page 8: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

8

· Three different modes of operation: Direction-to-fault, time-based distance to fault and faultdepth indication

1.7.AUTOMATIC DATA LOGGER

HVINC ADLThe ADL-1 data logger is designed to monitor, record, and wirelesslydownload all test data from an HVI Very Low Frequency tester to a computer.Users now have the best of both worlds: economical and easy to use VLFtesters along with full test data collection. Use a laptop on-site to watch andrecord the test or store all results in the ADL-1 for later downloading.Windows compatible only.

C. Electrical Safety System

1.8. System providing electrical safety of laboratory’s personnel:Module of grounding control

Module of grounding control (further MGC) is intended for monitoring of connections quality inthe circuits of protective and working grounding and prohibition of switching of functional modulesin case of fault in grounding circuit.For additional control it is used a special grounding rod, which is put in theground near the LVI. It is connected by insulated wire with terminal «AuE».

· Resistance of circuit between terminals of working and protectivegrounding of module MKZ (summarized resistance of wires ofprotective and working grounding and also places of their junctions),which must not exceed 10 Ohm. If the value is bigger than this it is actuated a blocking relayand on the control panel the indicator Grounding Control blinks off;

· Potential of terminal «Protective grounding» towards the potential ofcontrol grounding rod (actually – potential of LVI body towardsground), which must not be more than 25 V. At the excess of thispotential the blocking relay is also actuated, and on the control panel theindicator Ground Potential blinks off.

D. High Voltage Connecting Device

1.9 MAIN SWITCHCarries out switching of CDS high-voltage outputs and Megohmmeter onhigh-voltage shielded cable. On the main switch there are switchesautomatically closing the high-voltage output to "ground" after the work isfinished

1.10. BLOCKS OF CABLE DRUMSExternal connections of HVT-25 are provided with a feeding cable drum, grounding cable drumand a high voltage cable drum with a high voltage cable of 30 meters in length. At the requirementof a customer the length of cables can be increased.

DESCRIPTION

Page 9: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

9

Block of cable drums VD 4.137.001

- drum with feeding cable;- drum with grounding cable with a cross-section 25 mm2, length of cable 30 m;- drum with high voltage shielded cable for rectified voltage testing up to 60kV, the length ofcable is 30 m;

1.11 POWER GENERATOR EISEMANN 7400

DESCRIPTION

This modern petrol generator with electronic control unit is ideal for independent work onconstruction sites and for industrial, commercial or private operation. With a large fuel tank itguarantees up to 16 hours running time and offers excellent performance and atthe same time it is very safe to use. Isolation control with cut-off in cases ofemergency and a test button ensure that the safety requirements according tocivil engineering standard GW 308 are met.It also complies with ecological standards. Reduced exhaust emission and lowfuel consumption as well as its very silent operation make it a highly efficientgenerator.TECHNICAL SPECIFICATIONS

Engine Honda GX 390 Super SilentCylinder 1Speed 3000 rpmFuel PetrolEngine capacity 1.3 lCooling (Engine/Generator) Air / AirElectr. capacity 3~ φ 1.0 6000VAElectr. capacity 1~ φ 1.0 5000VAVoltage 3~ 400VVoltage 1~ 230VMax. Current 3~ 9AMax. Current 1~ 22,5ACurrent 1~ (CEE) 22,5ACurrent 1~ (Schuko) 16AMax. starting current cos φ 0,6 16AStarting current with 20%voltage drop

40A

Frequency 50hzProtection IP 54Tank capacity 20 IWeight 108 kgWeight including battery 117 kgDimensions (L x W x H) 740x500x350 mmAcoustic power LWA 98 dB(A)Acoustic pressure (10m no load) 70 dB(A)

Page 10: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

10

E. VEHICLE2. CHASSIS. Chassis of any car manufacturers are applied:

Lay-out of equipment in the cable test module HVT-25

Page 11: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

11

2.1 Vehicle body. The vehicle body is divided into two compartments: a high-voltage compartment and anoperator compartment. High-voltage transformers, cable drums and other functional equipment are placedin the high-voltage compartment. There are also two tool cases for regular tools and accessories. Measuringand control devices, managing system for testing process are placed in the operator compartment. Here arealso an operator table, chest for devices and tools necessary for the operator during working.

In the operator compartment there are control panels for high-voltage testing, and also an armchair for theoperator, devices and tools chests and shelves for the documentation.

In the high-voltage compartment there are 3-phase main switching control panel HVS-60/3, the high-voltageblock of cables CDS-2010, the cable drums and ets.

Views to the high voltage compartment of the laboratory HVT-25

Page 12: Cable Test Module ( HVT-25) - VitalDrive - · PDF file · 2013-08-08HVT-25 is intended for the following work performance: ... DESCRIPTION A VLF hipot is just ... download all test

12

View to the operator compartment of the laboratory HVT-25

The laboratory has the following main distinctive features:· The equipment is mounted in the noise and heat insulated vehicle body from plastic-glass

sandwich panels with foam filler. This creates a comfort work conditions for the operatorboth in cold and hot climate.

· In the operator compartment it is mounted a working table of Eurodesk type which createscomfort conditions for measurements and their further processing and registration.

· In order not to touch the conducting parts the special partition separates the operatorcompartment from the high voltage compartment.

· The partition separates and working table of Eurodesk type from the high voltagecompartment.

· Leading out of cables to the object is done through the special cable outlet hatch.

F. Documents3. Technical documentation:

1. Operating Manual2. Circuit Schematic Manual3. Test – calibration reports

G. Warranty & Service4. Warranty:Warranty period 12 month. All spare parts will provide for 10 years.

H. Contacts5. Contacts:

Please send your requests by e-mail:[email protected]; [email protected] ; [email protected]

or by phone/fax: +357 24 821788 / +357 24 821787


Recommended