Subject to modifications and errors
Page 5 of 71
2019-06-26 edition
1
Safety
Caution! Never work when voltage is applied.
This poses a life-threatening risk! Never use the device if there is obvious
damage! Use only by trained specialist personnel!
1.1
Intended use
The TELE NA003 serves as grid and system protection for supplying cogeneration units, wind power stations,
hydroelectric power plants, and photovoltaic systems.
In the event of a power failure or a fault in the grid of the energy supply company, private small power
plants must immediately be isolated from the public grid to prevent accidental infeed. For one, maintenance
personnel could be endangered without immediate grid separation, and secondly, consumers could be
exposed to impermissible voltages and frequencies.
In case the grid operator requires threshold values that deviate from the standards, it is possible in part to
set some of the threshold values outside of the standard defined range.
Outside of this range the device is no longer in compliance with standards and the corresponding
certificates lose their validity. This status is shown on the display by the identifier "ncnf." Settings outside of
this range are therefore within the operator's scope of responsibility and/or the acceptance authority of the
system.
1.2
Safety advice
This device was built and tested in accordance with recognized technical safety regulations. However,
incorrect use can still result in danger for both persons and machine.
Only use this device as intended, in a technical safe condition, and in compliance with the applicable rules
and regulations for accident prevention valid at the usage location.
•
Fix all faults that could impair the safety immediately.
•
Do not make any unauthorized changes and only use spare parts and additional devices that are
sold or expressly recommended by the manufacturer of the device.
•
The device may no longer be used in case of obvious damage.
•
Country-specific standards and guidelines are to be observed.
•
The NA003 can be protected against authorized changes after commissioning via password
protection or sealing. One of the protection mechanisms named above must be applied if this is
required in the respective country-specific standard or guidelines.
