Circuit breaker quick debugging method based on buffer replacement

Abstract

The invention relates to a circuit breaker quick debugging method based on buffer replacement, a complete set of circuit breaker travel and mechanical characteristic testing are finished, the data ofeach parameter is recorded on the test work card, and compared to the standard value, When some parameters exceed the standard, At that same limit value, Remove the buffer from the circuit breaker, according to the specific problems, mount the adjusted buffer on the circuit breaker, and then the mechanical characteristics were tested and verified, The debugging method is simple and reasonable, greatly improves the efficiency of maintenance, and can easily solve the problem that the mutual restriction parameters are at the same limit value. The simple skill of making corresponding adjustment tothe buffer can be used for fast debugging, thus avoiding the hoisting problem in the existing method, and eliminating the safety risks brought by hoisting and the like.

Description

technical field [0001] The invention relates to a quick commissioning method for a circuit breaker based on buffer replacement. Background technique [0002] The stroke and mechanical characteristics debugging of the circuit breaker is to adjust the closing speed, opening speed, closing time, opening time, stroke, overtravel, cam clearance and other parameters of the circuit breaker. Because these parameters are mutually restricted, the debugging work It becomes very complicated, the debugging process will encounter unpredictable situations, and the requirements for debugging personnel are also extremely demanding. The existing debugging methods are as follows: [0003] 1. When the opening and closing speed and opening and closing time are unqualified, directly adjust the corresponding opening and closing spring. However, this method has great limitations. It can only simply deal with the exceeding of some parameters. Mutual constraint parameters will change from qualifie...

AI Technical Summary

Problems solved by technology

However, this method has great limitations. It can only simply deal with the exceeding of some parameters. Mutual restriction parameters will change from qualified to unqualified), otherwise the parameters of this parameter will be adjusted and other parameters will exceed the standard

[0004] 2. When the stroke of the circuit breaker is unqualified, there is currently no standard practice for the debuggers, which is to adjust the vertical (or horizontal) connecting rod a little bit, and then adjust the horizontal (or vertical) connecting rod a little bit later. There is no clear The direction and method are adjusted back and forth according to the feeling, and sometimes even the qualified data cannot be called out for a long time

At the same time, this approach suffers from the same limitations as item 1

[0005] 3. Some batches of circuit breaker mechanisms are all-inclusive, and the closing spring is also sealed. When the closing speed or closing time of this kind of circuit breaker is unqualified, the vertical transmission connecting rod can only be removed and then Hoist the circuit breaker mechanism as a whole, then adjust the closing spring, and then reassemble the mechanism for testing, if not satisfied, repeat disassembly and assembly

[0008] 1. Using the existing method, the debugging process has great limitations. It can only simply deal with the exceeding of some parameters. At the same time, it must be ensured that the mutually restrictive parameters are in the middle value or the opposite limit, or it is a large-scale rework, and the whole machine is broken. The maintenance time of the device is greatly increased, which greatly reduces the production efficiency

[0009] 2. The existing adjustment method for the stroke is blind and the production efficiency is extremely low. There should be a clear method for quick adjustment

[0010] 3. The rework of large actions during substation maintenance will affect the progress of the entire maintenance, and it is necessary to extend the power outage time, and even expand the power outage range due to the hoisting of the main body

[0011] 4. The dismantling and installation of the circuit breaker body and mechanism require the use of lifting equipment such as driving, cranes or poles, which greatly increases the operating cost

[0012] 5. In terms of manpower, if the main body is hoisted, the commissioning work that originally only needs 3 people to complete will be completed by 6 people, which brings considerable challenges to the personnel arrangement

[0013] 6. The hoisting and disassembly of the main body and mechanism of the circuit breaker virtually increases various safety risks and hidden dangers such as high-altitude operations, mechanical injuries, and lifting operations.