sacepr121 energy storage circuit

How do pr122/p & p123/p units work?

The PR122/P and PR123/P units are powered by the MEASURING module via the busbar voltage. The powering stage is capable of operating starting from a voltage of 80 Vrms two-phase phase to phase up to 897 Vrms ( 1.3 * 690 Vrms ) three-phase phase to phase at its input (coming directly from the busbars or from a transformer secondary).

What is pr122/p & p123/p protection T?

2.6.17. Protection "T" There is a sensor inside the PR122/P and PR123/P unit that monitors the temperature of the unit. This enables the signalling of any abnormal temperature conditions, which could cause temporary or continuous malfunctions of the unit’s electronic components.

What is a pr122/p & P 123/p sensor?

There is a sensor inside the PR122/P and PR123/P unit that monitors the temperature of the unit. This enables the signalling of any abnormal temperature conditions, which could cause temporary or continuous malfunctions of the unit’s electronic components. or or

What are the watchdog functions of pr122/p & p123/p units?

The PR122/P and PR123/P unit provides some watchdog functions able to guarantee the proper management of relay malfunc-tions. These functions are as follows: Watchdog for presence of Auxiliary power supply with “plug” icon displayed. RATING PLUG validity. Watchdog for proper connection of the current sensors (CS).

What sensors can be connected to a relay p122/p & p123/p?

Relays PR122/P and PR123/P can be connected to external sensors of 3 different types: external neutral sensor, earth fault cur-rent sensor SGR and residual current sensor Rc. The sensors are connected to the relay by means of the terminal box installed on the CB.

What is a datalogger relay p122/p & p123/p?

Datalogger Relays PR122/P and PR123/P powered with Vaux, possess a Datalogger function: this function can be used for storing and sav-ing the instantaneous values of certain analog measurements (7 analog channels) and digital measurements (64 digital events) in a capacious data buffer.

Sacepr121 energy storage circuit

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