CN202633766U

CN202633766U - Preassembled case-type transformer substation transformer cabin safety net door blocking device

Info

Publication number: CN202633766U
Application number: CN 201220345118
Authority: CN
Inventors: 陈孟清; 陈雷
Original assignee: YUANDA ZHONGLIAN HOLDING GROUP CO Ltd
Current assignee: YUANDA ZHONGLIAN HOLDING GROUP CO Ltd
Priority date: 2012-07-17
Filing date: 2012-07-17
Publication date: 2012-12-26
Anticipated expiration: 2022-07-17

Abstract

The utility model relates to a preassembled case-type transformer substation transformer cabin safety net door blocking device. The preassembled case-type transformer substation transformer cabin safety net door blocking device is characterized by comprising a shutting switch (3) arranged in the closing position of a safety net door (5) in a transformer cabin (4). The shutting switch (3) is connected with and in electric interlock with a high-voltage circuit breaker (1) in a high-voltage chamber (2) through wires, and therefore when the safety net door (5) is opened, the shutting switch (3) is triggered to break the high-voltage circuit breaker (1) which is in electric interlock with the shutting switch (3). When the safety net door (5) is closed, the shutting switch (3) is triggered to conduct the high-voltage circuit breaker (1) which is in electric interlock with the shutting switch (3). According to the preassembled case-type transformer substation transformer cabin safety net door blocking device, a safety net door blocking device in the transformer cabin is added in a traditional case-type transformer substation, when in normal operation sequences, an operator can enter the transformer cabin only when a high-voltage wire inlet and outlet switch is cut off so that electric shock accidents caused by the operator entering an electrified cabin are avoided.

Description

Prepackage box-type substation transformer room safety net door latch apparatus

Technical field

The utility model relates to a kind of prepackage box-type substation transformer room safety net door latch apparatus.

Background technology

The prepackage box-type substation is a kind ofly to be combined in the complete power distribution equipment of compact in or a few casing to high voltage switchgear, transformer, low voltage switchgear, electric energy measuring equipment and reactive-load compensation equipment etc. by certain connection plan.It is applicable in the rated voltage 12/0.4KV three-phase alternating current system, as the usefulness of distributing and accept electric energy.When the normal running order, behind the necessary first cutoff high turnover wiretap, just can get into the transformer room.

The utility model content

The purpose of the utility model provides a kind of prepackage box-type substation transformer room safety net door latch apparatus, can avoid operating personnel to get into charged interval and cause electric shock accidents.

A kind of prepackage box-type substation transformer room safety net door latch apparatus; Its special feature is: the latch switch that comprises the safety net door off-position place that is installed in the transformer room; This latch switch is connected through lead with primary cut-out in the hyperbaric chamber and is set to electrical interlock; Thereby when aforementioned safety net door is opened, trigger latch switch the primary cut-out with its electrical interlock is broken off, make the primary cut-out conducting with its electrical interlock and when aforementioned safety net door is closed, trigger latch switch.

Wherein latch switch has trigger end, and this trigger end is installed on the ground of transformer room.

The utility model is in traditional box-type substation; Increase safety net door latch apparatus in the transformer room; When the normal running order; Must be first behind the cutoff high turnover wiretap, just can get into the transformer room, if when not having the switch of cutoff high cabinet directly the safety net door of transformer room opened because of maintainer's misoperation or when forgetting; The locking device of on the safety net door, installing cutoff high power supply immediately makes operating personnel obtain safety guarantee, avoids operating personnel to get into charged interval and causes electric shock accidents.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

Embodiment

As shown in Figure 1; The utility model is a kind of prepackage box-type substation transformer room safety net door latch apparatus; Comprise the latch switch 3 that is installed in the safety net door 5 off-position places in the transformer room 4, and this latch switch 3 being connected through lead with hyperbaric chamber 2 interior primary cut-outs 1 and being set to electrical interlock, specifically is that latch switch 3 has trigger end; This trigger end is installed on the ground of transformer room 4, and this trigger end is opened, can be discharged when closing, compress to safety net door 5.Thereby when aforementioned safety net door 5 is opened, triggering latch switch 3 breaks off the primary cut-out 1 with its electrical interlock; Make primary cut-out 1 conducting with its electrical interlock and when aforementioned safety net door 5 is closed, trigger latch switch 3, just guaranteed that also operating personnel open behind the safety net door 5 cutoff high power supply immediately.

Claims

1. pre-install box-type substation transformer room safety net door latch apparatus for one kind; It is characterized in that: comprise the latch switch (3) that is installed in safety net door (5) the off-position place in the transformer room (4); Primary cut-out (1) in this latch switch (3) and hyperbaric chamber (2) is connected through lead and is set to electrical interlock; Make with the primary cut-out (1) of its electrical interlock and break off thereby trigger latch switch (3) when opening, make primary cut-out (1) conducting with its electrical interlock and trigger latch switch (3) when closing at aforementioned safety net door (5) at aforementioned safety net door (5).

2. prepackage box-type substation as claimed in claim 1 transformer room safety net door latch apparatus, it is characterized in that: wherein latch switch (3) has trigger end, and this trigger end is installed on the ground of transformer room (4).