TH13409A - The electronic separation device incorporates an enhanced long delay working position. - Google Patents

Abstract

In order to provide the long delay operation of the quantitative electronic separation device (TLRl) that represents the heat state. Will change as a ratio with the difference (I2-Is2) between the square of the value (I) representing the current flowing in the conductor to be Protected and square of the set current (is). This first order (TLRl) is used in combination with the second value to Generates a separation signal when the second order exceeds the set value (TLR2 max). Add to the counter-square (I2) rate of the value representing the current when The first quantity exceeds the set value (STLRl) and the X will decrease. The second volume is lower than the set value in Figure 7.

Claims (1)

1. The electronic isolation device consists of a sensing section (5) for detecting the current flowing in a conductor (1) which is designed to be protected by a circuit breaker (2) integrated with Isolation device, electronic generating unit (7) that provides the separation function with the least delay of the pattern. Long delay, the part connected to the detection part containing the For generating the current (I), the section for generating the primary quantity (TLR1) representing the thermal state of the circuit breaker. The variation (TLRl) of the said section will be ratio to the difference tags: