GREWIN PCLC-900C User manual

Tianjin Grewin Technology Co.Ltd
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PCLC-900C
Cable fault multi-impulse coupler
User Guide
We reserve all right in this document and in the information contained within. Reproduction, use or
disclosure to third partners without express authorization is strictly forbidden.

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Table of Contents
Title
I n t r o d u c t i o n · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2
D e s i g n F e a t u r e s · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 3
Tech. Specifications············································4
Physical Characteristics········································5
Operation method ·············································7
Notify····························································9
Security warning················································9

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Introduction
Matched with HVSG-500GN HV generator and PCLC-901D pre-locator to do location of the power cable
high resistance leaking fault, flash fault, low resistance fault and break fault.
PCLC-900C Cable fault multi-impulse coupler is used to offer the multi-impulse signal coupling path for
the cable fault locator. It adopts the latest multiple impulse method to simple the judgment of the cable
fault waveform.
It transfers the complex voltage surging breakdown waveform into the easy distinguished fault waveform.
And the requirement to the tech. stuffs is reduced.

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Design Features
PCLC-900C Cable fault multi-impulse coupler
Latest multiple impulse tech. and impulse balance tech., make the reflected waveform of the fault
point obvious and easy to distinguish
Adopt high voltage protection tech. to realize the isolation of measuring circuit and the high voltage
surging power
Simple wiring and matched with generator of other brands
No high voltage release

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Tech. Specifications
Input surge voltage
below 32kV
Input surge current
Below 4000J(instant) and the mean value should below 2000J
Tested impulse voltage
300Vpp
Impulse period
Above 5s
Power
AC 220V,50Hz
Volume
419mm×320mmx341mm
Weight
10kgs
Operating Temperature
-10℃－40℃
Humidity
5-90％RH
Elevation
<4500m

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Physical Characteristics
1.PCLC-900C 3D drawing
Figure1. Device
Signal line
Power line
HV
output
RED
BLACK
HV input
Testing
grounding
Protect
grounding

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2. Front panel
Figure2. Operation panel
1.Power port: Working power supply, AC 220V,50Hz
2.Signal port: connect with the pre-locator signal port
3.Power indicator: When power on,the power indicator bright
4.High voltage input: Connect with high voltage signal generator,such as our HVSG-500GN generator.
Pls notice, the input voltage should no high than 35kV.The impact energy is below 2000J.Otherwise,the
device may be destroyed if too high surge voltage and large surge energy.
5.High voltage output: Connect the high voltage output line of the target cable. Apply high voltage signal
and the multi impulse signal to the target cable. The red clip is negative high voltage output. The black
clip is the test grounding.
When phase-sheath fault, the black clip connected with the sheath and read clip connect with the faulty
core. When phase-phase fault, the black clip connect with the two faulty cores.
When high voltage generator work,away from the output clamp.After use,pls release before wire apart.
NOT MISTAKE THE POLARITY OTHERWISE THE DEVICE WILL BE DESTROIED
6.protect grounding: it is the device protect point and must well grounding.
HV input
Signal port
Power port
Protect cover
HV！Danger

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Operation method

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1.As above fig.3:
Connect the high voltage output clip with the input of the PCLC-900C.Then connect the
high voltage output line of PCLC-900C coupler with the target cable.And connect the
ground with the ground grid through grounding line.Make sure well grounding and
connect the earth stake with the ground.
Detailed steps:
Check the wiring
Connect the power supply line,turn on and the power indicator is bright
Change the HVSG-500GN generator into manual mode
Connect the distance test port of PCLC-900C with PCLC-901D cable fault locator
Start the HVSG-500GN high voltage signal generator
Adjust the range of PCLC-901D cable fault locator.Before every test,press test key to
enter the waiting state
Adjust the high voltage to the breakdown value,common higher than 5kV.Press
HVSG-500GN,manual release and the PCLC-901D cable fault locator will simple and record
the multiple impulse then analysis to get the fault distance
Adjust voltage,range as above until getting ideal waveform
After use,fully discharge before removing wire.

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Notify!!!
The high voltage device,use need to be strictly comply with the user guide.Make sure the
output end to fully discharge after working.Otherwise may bring hurt to the user.
Device disassembly is forbidden.Part of the inner circuit have high voltage storage,so it
might bring hurt to user even when power off.
If some problem with the machine,pls don't try to modify it.Pls contact us for the solution
suggestion.
The input voltage should be below 30kV.The energy should be below
2000J.Otherwise,maybe some destroys to the device.
Security warming
The max voltage of the machine is 30kV.Pls caution.
When the device working,pls keep away from the output clamp!
Disassemble is forbidden to avoid heavy current shock
Contact with us if any problems during the using!