CN105207123A - Equipotential operation method of tubular bus - Google Patents

Abstract

The invention relates to a method for equipotential operation of a tubular busbar, which comprises the following steps: step 1, the ground potential electrician installs the arc suppression block on the tubular busbar; step 2, the equipotential electrician enters the electric field along the insulating ladder; step 3, etc. The potential electrician tie one end of the arc suppression rope under the drain plate; the ground potential electrician cooperates to control the arc suppression rope; step 4, the potential electrician removes the bolts on the drain plate; step 5, the equipotential electrician controls the swing of the drain line on the ground, and the ground potential electrician The electrician disconnects the drain wire; step 6, after the ground potential electrician fixes the disconnected drain wire, remove the arc suppression block and arc suppression rope installed on the tubular busbar, and the work of disconnection of this phase is completed; step 7, repeat the above steps From 1 to step 6, the task of three-phase disconnection is completed. The invention uses an insulating ladder to enter the electric field to carry out equipotential live work. This method is simple and flexible, can greatly reduce the labor intensity of operators, and promotes the general development of electric substation work.

Description

A method for equipotential operation of tubular bus

technical field

The invention relates to the field of substation maintenance operations, in particular to a method for equipotential operation of tubular busbars.

technical background

In the power system, the technology of live work in the field of line and distribution network has been very mature, and the safety and stability of live work in substations have also received more and more attention. With the continuous improvement of the system's requirements for power supply reliability, the tubular busbar gradually replaces the original wire busbar. Since the porcelain post insulators supporting the tubular busbar cannot withstand excessive longitudinal loads, the original method of hanging insulating ladders for live work cannot be carried out on the tubular busbar, which brings new problems to live work in substations.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention proposes a method for equipotential operation of tubular busbars based on the fact that the tube mother itself cannot be used for conventional live work such as hanging insulating ladders. This method uses an insulating ladder to enter the electric field to carry out equipotential live work. This method is simple and flexible, can greatly reduce the labor intensity of operators, enhance the safety and comfort of work, and promote the widespread development of live work in substations.

The purpose of the present invention is achieved through the following technical solutions:

A method for equipotential operation of a tubular busbar, comprising the following steps:

Step 1. The ground potential electrician builds the insulating ladder and hangs the protective rope, and the ground potential electrician installs the arc suppression block on the tubular busbar with the insulating rod;

Step 2. After the equipotential electrician puts on the shielding suit and conductive shoes, put the arc suppression rope into the tool bag and put it on his back, and enter the electric field along the insulation ladder;

Step 3. The equipotential electrician puts the arc-suppression rope into the arc-suppression tackle, and ties one end of the arc-suppression rope under the drain plate of the drainage line to be disconnected; Both ends have tension;

Step 4. After the equipotential electrician removes the bolts on the drain plate, exit the electric field along the insulation ladder and return to the ground;

Step 5. The equipotential electrician uses an insulating rod on the ground to control the swing of the drain wire. Under the command of the person in charge, the ground potential electrician pulls and loosens the drain wire through the arc suppression rope;

Step 6. After the ground potential electrician fixes the disconnected drain wire, use the insulating rod to remove the arc suppressing block and arc suppressing rope installed on the tubular busbar, put away the insulating ladder, and the disconnection of this phase is completed;

Step 7. Complete the task of disconnecting the remaining two-phase drainage lines from step 1 to step 6 above;

Step 8. After completing the task of disconnecting the three-phase leads, tidy up the site and end the work according to the process.

The tubular busbar is a magnesium-aluminum alloy tubular busbar.

The method for equipotential operation of a tubular busbar is suitable for equipotential operation of magnesium-aluminum alloy tubular busbars with a grade model of 6063-150/136 in a 66kV substation.

Compared with the prior art, the present invention has beneficial effects.

(1) When the insulating ladder cannot be suspended, carry out equipotential live work on the tubular busbar.

(2) Live work guarantees power supply, saves energy, and improves efficiency.

(3) It is convenient and labor-saving, requires fewer operators, is convenient for command and monitoring, and improves the safety factor of operators.

Description of drawings

Fig. 1 is a schematic diagram of on-site operation of a method for equipotential operation of a tubular busbar according to an exemplary embodiment of the present invention;

1-tubular busbar, 2-drainage wire, 3-equal potential electrician, 4-ground potential electrician, 5-insulation ladder, 6-arc suppression block, 7 arc suppression rope.

Detailed ways

The content of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Example

A method for equipotential operation of a tubular busbar, comprising the following steps:

Step 1. The ground potential electrician 4 sets up the insulating ladder 5 and hangs the protective rope. The ground potential electrician 4 installs the arc suppression block 6 on the magnesium-aluminum alloy tubular busbar 1 by using the insulating rod;

Step 2. After the equipotential electrician 3 puts on the shielding suit and conductive shoes, put the arc suppression rope 7 into the tool bag and put it on his back, and enter the electric field along the insulation ladder 5;

Step 3. The equipotential electrician 3 puts the arc-suppression rope 7 into the arc-suppression tackle 6, and tie one end of the arc-suppression rope 7 under the drain plate of the drainage line 2 that needs to be disconnected; then the ground potential electrician 4 cooperates to control the arc-suppression Rope 7, so that the two ends of the arc suppression rope 7 have tension;

Step 4. After the equipotential electrician 3 removes the bolts on the drain plate, exit the electric field along the insulation ladder 5 and return to the ground;

Step 5. The equipotential electrician 3 uses an insulating rod on the ground to control the swing of the drain wire 2. Under the command of the person in charge, the ground potential electrician 4 pulls and loosens the arc suppression rope 7 to disconnect the drain wire;

Step 6. After the ground potential electrician 4 fixes the disconnected drain wire 2, use an insulating rod to remove the arc suppression block 6 and arc suppression rope 7 installed on the magnesium-aluminum alloy tubular busbar 1, and put away the insulation ladder 5. End of work;

Step 7. Complete the task of disconnecting the remaining two-phase drainage lines 7 from the above steps 1 to 6;

Step 8. After completing the task of disconnecting the three-phase leads, tidy up the site and end the work according to the process.

The method for equipotential operation of a tubular busbar is suitable for equipotential operation of magnesium-aluminum alloy tubular busbars with a grade model of 6063-150/136 in a 66kV substation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range. The parts not described in this embodiment are the same as the prior art.

Claims (3)

1. A method for equipotential operation of tubular busbar, characterized in that: comprise the following steps: Step 1. The ground potential electrician builds the insulating ladder and hangs the protective rope, and the ground potential electrician installs the arc suppression block on the tubular busbar with the insulating rod; Step 2. After the equipotential electrician puts on the shielding suit and conductive shoes, put the arc suppression rope into the tool bag and put it on his back, and enter the electric field along the insulation ladder; Step 3. The equipotential electrician puts the arc-suppression rope into the arc-suppression tackle, and ties one end of the arc-suppression rope under the drain plate of the drainage line to be disconnected; Both ends have tension; Step 4. After the equipotential electrician removes the bolts on the drain plate, exit the electric field along the insulation ladder and return to the ground; Step 5. The equipotential electrician uses an insulating rod on the ground to control the swing of the drain wire. Under the command of the person in charge, the ground potential electrician pulls and loosens the drain wire through the arc suppression rope; Step 6. After the ground potential electrician fixes the disconnected drain wire, use the insulating rod to remove the arc suppressing block and arc suppressing rope installed on the tubular busbar, put away the insulating ladder, and the disconnection of this phase is completed; Step 7. Complete the task of disconnecting the remaining two-phase drainage lines from step 1 to step 6 above; Step 8. After completing the task of disconnecting the three-phase leads, tidy up the site and end the work according to the process. 2. A method for equipotential operation of tubular busbars according to claim 1, characterized in that: said tubular busbars are magnesium-aluminum alloy tubular busbars. 3. A method for equipotential operation of tubular busbars according to claim 1, characterized in that: the method for equipotential operation of tubular busbars is suitable for: 66kV voltage substations, the grade model is 6063-150/136 The equipotential operation of the magnesium-aluminum alloy tubular busbar.