Preparing The Sensors For Installation; Installation Of Phase Sensors - Siemens SICAM Manual

Mechanical Components
Screws for front cover, terminal blocks
DIP switch settings and battery removal Flat screwdriver
M4 nut and M5 nut for sensor clamp
Battery De-Passivation
To de-passivate the battery proceed as follows:
Remove the battery from the device.
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Connect a 100 ohms 1/4 W resistor to the positive (+) and negative (-) terminals of the battery and keep
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it for 10 minutes.
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Figure 2-12
Disconnect the battery from the resistor.
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Insert the battery in the device.
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Perform the self-test using the push button.
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Alternatively, the battery can be de-passivated as follows:
Insert the battery into the device and keep it there for about 6 hours.
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After 6 hours, observe the device functionality by performing the self-test using the push button.
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If the self-test is passed, the battery has recovered and the device is ready for operation.
NOTE
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The recommended method of de-passivation does not have any effect on the battery life.
However, the alternative method of de-passivation may have a nominal effect on the battery life.

Preparing the Sensors for Installation

2.1.10
The 3 phase sensors and 1 ground sensor shipped with the device as per the ordering code must be mounted
on L1, L2, L3 phase conductors core cable and 3-core cable respectively.
NOTE
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Before installing the sensors on the underground cables, disconnect the power to the respective cables.

Installation of Phase Sensors

2.1.11
To install the phase sensor, follow the procedure:
Loosen the M4 fixing bolts on both sides using a 7-mm wrench.
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SICAM, Fault Passage Indicator, Manual
E50417-H1040-C580-A7, Edition 11.2019
Tools Specifications
Flat screwdriver
7 mm/8 mm wrench
Resistor Conneted to Battery Terminals
Manufacturer/Part number
Taparia (Product No. 933) or equivalent
Taparia (Product No. 933) or equivalent
Standard manufacturer
Introduction
2.1 Overview
23