阅读说明：本技术 一种智能隔离开关 (Intelligent isolating switch ) 是由 金福根 杨家发 于 2019-02-22 设计创作，主要内容包括：本发明提供了一种智能隔离开关,其特征在于隔离开关上设置了一组辅助触头,辅助触头上引出导线,并与隔离开关形成并联关系；所述隔离开关包含隔离开关静触头、隔离开关动触头；所述辅助触头包含辅助静触头、辅助动触头；所述辅助静触头和辅助动触头的闭合位置在隔离开关静触头和隔离开关动触头闭合位置的末端,其特征在于隔离开关静触头和隔离开关动触头闭合到位后,辅助静触头和辅助动触头导通；通过判断辅助触头上是否有电流流过,确定隔离开关的动、静触头是否闭合到位。(The invention provides an intelligent isolating switch which is characterized in that a group of auxiliary contacts are arranged on the isolating switch, and wires are led out of the auxiliary contacts and form a parallel connection relation with the isolating switch; the isolating switch comprises an isolating switch static contact and an isolating switch moving contact; the auxiliary contact comprises an auxiliary static contact and an auxiliary moving contact; the closed positions of the auxiliary static contact and the auxiliary moving contact are at the tail ends of the closed positions of the isolation switch static contact and the isolation switch moving contact, and the isolation switch static contact and the isolation switch moving contact are switched on after being switched in place; and determining whether the moving contact and the static contact of the isolating switch are closed in place by judging whether the current flows through the auxiliary contact.)

1. An intelligent isolating switch is characterized in that a group of auxiliary contacts are arranged on the isolating switch, and wires are led out of the auxiliary contacts and form a parallel connection relation with the isolating switch;

the isolating switch comprises an isolating switch static contact and an isolating switch moving contact;

the auxiliary contact comprises an auxiliary static contact and an auxiliary moving contact;

and the closed positions of the auxiliary static contact and the auxiliary moving contact are arranged at the tail ends of the closed positions of the isolating switch static contact and the isolating switch moving contact.

2. The intelligent isolating switch as claimed in claim 1, wherein the auxiliary stationary contact and the auxiliary moving contact are conducted after the stationary contact and the moving contact of the isolating switch are closed in place.

Technical Field

The invention relates to the field of isolating switches, in particular to an intelligent isolating switch.

Background

In the existing isolating switch, in the switching-on process, the motor is mostly adopted for automatic switching-on, and a plurality of substations are unattended, under the condition, the condition that the moving contact and the static contact of the isolating switch are not closed in place and are put into use often occurs, and the abnormity can not occur in a short time. However, long-term use causes contact failure and a large contact resistance.

In view of the phenomenon, the invention provides the intelligent isolating switch, and whether the moving contact and the static contact of the isolating switch are closed in place is determined by judging whether the current flows through the auxiliary contact.

Disclosure of Invention

In order to achieve the purpose, the invention provides an intelligent isolating switch, wherein a group of auxiliary contacts are arranged on the isolating switch, and wires are led out of the auxiliary contacts and form a parallel connection relation with the isolating switch; the isolating switch comprises an isolating switch static contact and an isolating switch moving contact; the auxiliary contact comprises an auxiliary static contact and an auxiliary moving contact; the closed positions of the auxiliary static contact and the auxiliary moving contact are at the tail ends of the closed positions of the isolating switch static contact and the isolating switch moving contact, and the isolating switch static contact and the isolating switch moving contact are characterized in that the auxiliary static contact and the auxiliary moving contact are conducted after the isolating switch static contact and the isolating switch moving contact are closed in place.

The invention has the advantages that: after the auxiliary static contact and the auxiliary moving contact are conducted, whether the movable contact and the static contact of the isolating switch are closed in place or not is determined by judging whether current flows through the auxiliary contact or not, and the problem that the isolating switch is put into use when the movable contact and the static contact of the isolating switch are not closed in place is solved.

Drawings

FIG. 1: a schematic diagram of the intelligent isolation switch of example 1;

FIG. 2: the enlarged schematic diagram of the intelligent isolating switch contact and the auxiliary contact in the embodiment 1;

FIG. 3: the switching-on process schematic diagram of the intelligent isolating switch in the embodiment 1;

FIG. 4: the schematic diagram of the auxiliary contact opening state and the intelligent isolating switch contact closing state in embodiment 1;

FIG. 5: a schematic diagram of the intelligent isolation switch of example 2;

FIG. 6: the enlarged schematic diagram of the intelligent isolating switch contact and the auxiliary contact in the embodiment 2;

FIG. 7: the switching-on process of the intelligent isolating switch in the embodiment 2 is schematically shown;

FIG. 8: the schematic diagram of the auxiliary contact opening state and the intelligent isolating switch contact closing state in embodiment 2;

FIG. 9: a schematic diagram of the intelligent isolation switch of example 3;

FIG. 10: the intelligent isolating switch contact and the auxiliary contact of the embodiment 3 are schematically enlarged;

FIG. 11: the switching-on process schematic diagram of the intelligent isolating switch in the embodiment 3;

FIG. 12: the schematic diagram of the auxiliary contact opening state and the intelligent isolating switch contact closing state in embodiment 3.

FIG. 1 is a list of labels of FIG. 4:

1. the system comprises an isolating switch incoming wire lead, 2 an isolating switch incoming wire connecting point, 3 an isolating switch static contact, 4 an isolating switch moving contact, 5 an isolating switch outgoing wire connecting point, 6 an isolating switch outgoing wire lead, 7 an auxiliary static contact, 8 an auxiliary moving contact, 9 a current transformer, 10 a lead, 11 a resistor and 12 a monitoring device.

FIG. 5 is a table of the labels of FIG. 8:

1. the isolating switch comprises an isolating switch incoming wire lead, 2 an isolating switch incoming wire connecting point, 3 an isolating switch static contact I, 4 an isolating switch moving contact I, 5 an isolating switch outgoing wire connecting point, 6 an isolating switch outgoing wire lead, 7 an auxiliary static contact I, 8 an auxiliary moving contact I, 9 a current transformer, 10 a lead, 11 a resistor, 12 a monitoring device, 31 an isolating switch static contact II, 41 an isolating switch moving contact II, 71 an auxiliary static contact II, 81 an auxiliary moving contact II.

FIG. 9 is a table of labels of FIG. 12:

1. the system comprises an isolating switch incoming wire lead, 2 an isolating switch incoming wire connecting point, 3 an isolating switch contact I, 4 an isolating switch contact II, 5 an isolating switch outgoing wire connecting point, 6 an isolating switch outgoing wire lead, 7 an auxiliary contact I, 8 an auxiliary contact II, 9 a current transformer, 10 a lead, 11 a resistor and 12 a monitoring device.

Detailed description of the preferred embodiments