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HVB 10

High Voltage Measuring Bridge

USER GUIDE

Issue:

04 (01/2019) - EN

Article number:

83041

Содержание HVB 10

Страница 1: ...1 HVB 10 High Voltage Measuring Bridge USER GUIDE Issue 04 01 2019 EN Article number 83041...

Страница 2: ...2...

Страница 3: ...d Kent CT17 9EN T 44 1304 502100 F 44 1304 207342 E uksales megger com Dr Herbert Iann Str 6 D 96148 Baunach T 49 9544 68 0 F 49 9544 22 73 E team dach megger com Hagenuk KMT Kabelmesstechnik GmbH Meg...

Страница 4: ...are hereby limited to a period of 12 months from the date of delivery Each component supplied by Megger within the context of warranty will also be covered by this warranty for the remaining period o...

Страница 5: ...tion Mode 16 3 2 Electrical Connection in Testing Burning and Pinpointing Mode 18 3 3 Electrical Connection Special Applications 19 3 4 Use of an External Safety Device Optional 21 4 Operation 22 4 1...

Страница 6: ......

Страница 7: ...which the device will be installed and operated as well as the current national accident prevention regulations and internal company directives work operating and safety regulations After working on...

Страница 8: ...contact with water aggressive substances and inflammatory gases and vapours is prohibited The HVB 10 is built to be robust and can withstand the stresses it can expect to be subjected to in demanding...

Страница 9: ...th high voltage Working on high voltage systems and equipment especially in non stationary operation requires particular care and safety conscious action on the part of test personnel VDE regulations...

Страница 10: ...f a detected fault takes place using the voltage drop method in which the current voltage and resistance before and after the fault location are determined and considered in relation to the cable leng...

Страница 11: ...export to Easyprot software via USB Integrated discharge with active overload protection High performance battery for power supply independent of the mains Robust IP53 trolley case with extendable ha...

Страница 12: ...mA at 0 5 1 5 kV 60 mA at 5 kV 30 mA at 10 kV Maximum permitted capacity of the test object 25 F Test voltage 0 10 kV Prelocation Method Measuring accuracy Voltage drop method fully automatic 0 1 Pin...

Страница 13: ...ick Operating temperature 25 C 55 C Storage temperature 40 C 70 C Operating humidity max 93 relative humidity Dimensions W x H x D 500 x 457 x 305 mm Weight 25 kg Protection class according to IEC 611...

Страница 14: ...y switch HV ON push button HV OFF push button Rotary encoder Protective earthing connection HV output WARNING The HVB 10 generates a dangerous voltage of up to 10 kV during HV operation This is induce...

Страница 15: ...connecting the device make sure that it does not impair the function of any other systems or components If other systems and components have to be modified in order to set up and operate the device b...

Страница 16: ...ows the simplified connection diagram Connection diagram 88 V 264 V 50 60 Hz Connecting method for sheath fault location Connecting method for a fault between inner conductor and shield Connecting met...

Страница 17: ...clip 5 Connect the black and the green connection leads to separate healthy conductors auxiliary conductors of the same cable system 6 At the far end of the cable connect both auxiliary conductors to...

Страница 18: ...burning pinpointing When testing cable systems for which the probability of a fault is very low all conductors to be tested can be bridged and tested in a single step without having to reconnect In t...

Страница 19: ...ired by the effects of the contact resistances but should remain comparatively higher Furthermore the auxiliary conductor must be fault free It is connected as follows For this type of prelocation the...

Страница 20: ...ive sheath must be established very carefully e g using copper mesh tape which is looped tightly around the sheath several times and pressed securely in place using pipe clamps or cable ties The refer...

Страница 21: ...nt that no external safety device is used the corresponding dummy plug must be screwed on to the socket The following figure shows the optional external safety device Part Description Green signal lig...

Страница 22: ...switched off and the high voltage output earthed via a discharge resistor 4 2 General Operation Navigation within the menus is accomplished almost entirely via the circular selection menu The operatio...

Страница 23: ...to confirm As the output voltage settings can be bipolar depending on the operation mode the voltage value always has a positive or negative prefix To change the polarity the voltage must first be res...

Страница 24: ...ions or HV plugs that are not securely bolted The HV connection cable must be correctly connected see below If activated in system settings see page 25 an automatic connection check takes place upon a...

Страница 25: ...tomatic connection check see previous page in the test operating mode Flash over detection Enables disables automatic flash over detection with abrupt termination of the test EasyProt report Enables d...

Страница 26: ...r standards the following guidelines are specified for sheath testing PVC cable 3 kV PE medium voltage cable 5 kV PE high voltage cable 10 kV When testing the inner insulation of PILC cables the recom...

Страница 27: ...activated with the HV OFF push button 6 If this has been activated in the system settings see page 25 a query will be issued at the end of the test whether the log should be saved To do so a USB flash...

Страница 28: ...instructions provided in this section apply for both modes In preparation of prelocation the following parameters must be set Menu item Description Voltage The device always carries out prelocation b...

Страница 29: ...turned off until the current sub step is finished Accordingly in emergencies the emergency off button must always be used as the high voltage is then immediately switched off and the cable discharged...

Страница 30: ...ich can be located precisely with the assistance of a sheath fault locator and its earth rods step voltage method For devices equipped with the AF option a 8 44 kHz audio frequency signal is transmitt...

Страница 31: ...eceiver please read the respective manual WARNING Do not leave the system in operation unattended and accessible to the third parties Lock the location securely or instruct an authorised person to mon...

Страница 32: ...age and the current 3 Start the test via the menu item 4 Press the HV ON push button Result The test voltage is ramped up and the cable shield charged The respective voltage applied and the current pa...

Страница 33: ...e five safety rules see page 8 Even if proper disconnection and automatic discharging via the internal discharging device has taken place system components that have been under voltage should only be...

Страница 34: ...the sequence of the tests is recommended to make classify them easier later on The lean logging software Easyport which is stored on the supplied USB stick is suitable for viewing printing and archivi...

Страница 35: ...SB flash drive into the USB port of the HVB 10 which has to be switched off 5 Briefly de energize the HVB 10 by pulling the power cord Afterwards reconnect the power cord and power on the unit 6 The b...

Страница 36: ...ing charge every six months The internal battery can be recharged in two ways Through the mains connection lead which connects the power supply socket to an appropriate mains socket Through the motor...

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