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I. Overview

TM 2000 digital low-voltage protection device is a current, voltage protection and three-phase reclosing as the basic configuration of the complete set of low-voltage protection device. Suitable for 35KV and below the voltage level of the indirect grounding system or by resistance grounding system in the low-voltage protection, can be installed in the switchgear in situ, can also be installed in the control room panel.

The main function configuration is as follows:

Three - phase phase - to - phase current protection element

Three - stage zero - sequence current protection element

Low voltage latching element

Reclosing elements

Closing acceleration protection element (front acceleration, rear acceleration)

Overload components

Low voltage components

Overvoltage components

PT disconnection detection element

Non - electric components

II. Technical parameters

1. Rated DC voltage: 220V or 110V

2. Rated AC data:

a) Line extraction voltage 100 V or V

b) AC current 5A or 1A (order note)

c) Rated frequency 50Hz