GB 25284-2010High-voltage alternating-current automatic circuit reclosers for rated voltages from 12 kV up to and including 40.5 kV (English PDF)

Foreword

All technical contents of this standard is mandatory.

This Standard is a modified IEC 62271-111:2005 (first edition) "high-voltage switchgear and control equipment --- Part 111. AC line 38kV overhead system and the type, column type, dry-room scenting, line recloser type underwater fault and breaking device. " this standard and IEC 62271-111. The main difference is reflected in 2005.

--- Scope. According to the actual situation of China's power grid, eliminating the IEC 62271-111 content related to the rated frequency of 60Hz;

Depending on the application of the recloser, the voltage applied by the "38kV and the" to "12kV ~ 40.5kV"; applicable the removed product types "underwater recloser type" content "fault breaking device" and relevant requirements.

--- normal and special conditions. According to GB/T 11022-1999 Chapter 2.

--- terms and definitions. IEC 62271-111 only given the definition of "unit operation", and this terminology given in standard references greatly increased, Increasing the terms and definitions C1, C2, E1, E2, M1, M2, S1, S2 stage recloser.

--- rating. IEC 62271-111 in "the highest rated voltage" to "rated voltage" in this standard.

--- rated voltage. Removed and the rated voltage value independent of the power grid, as listed in 11022-1999 GB/T voltage Given.

--- IEC 62271-111 given only "Lightning impulse withstand voltage", this standard is given "Rated insulation level."

--- This standard also given a "short time withstand current rating", "rated peak withstand current", "rated short duration", "rated operation for order "," rated time parameters "and other ratings.

--- value of rated current, rated short-circuit breaking current and the like were normalized to R10 coefficient.

--- "limit temperature" employed GB/T 11022-1999 Table 3.

--- ", sub-gate means, and an auxiliary power supply voltage control loop rated" by GB/T 11022-1999 predetermined.

--- according to the provisions of GB/T 11022-1999 of Chapter 5, "Design and Structure" adds content from 5.1 to 5.20 parts. increased "Indicated position", "shell protection", "creepage distances", "gas and vacuum seal", "seal liquid," "Electromagnetic and Capacitive "and other requirements to include part of IEC 62271-111 in Chapter 9.

--- according to the provisions of GB/T 11022-1999, and Chapter 6, "type test" add content "Overview" section.

--- according to GB/T 11022-1999 and GB 1984-2003 6.2 rewritten insulation test.

--- deleted the "Radio interference test."

--- "Switching Test" deleted "load current switching test" content, and GB 1984 with reference to lines and cable charging current to open and close Tests were carried out a comprehensive revision, given the provisions of Class C1 and C2 level.

--- additional type tests are. the main circuit resistance measurement, insulation test extended mechanical life test, and the auxiliary control loop, EARTH fault current breaking test, short time withstand current and peak current withstand test, the EMC test, stress tolerance test, Degree of protection inspection.

--- increase the "test group" and "confirmation test" and "type test report contains information" and so on.

--- increase "describes a class M1 recloser test."

--- increase "prolong mechanical life of the recloser (M2)" for the number of operating requirements and test methods.

--- increase "reference mechanical stroke characteristic (6.101.1.1)" requirements.

--- increase "environmental testing" content.

--- modification and increased content 6.109.1 and fast transient surge oscillation tests.

--- Chapter 7, "factory test" adds detailed requirements for "no-load mechanical operation test". Increasing the "main circuit resistance measurement."

--- deleted the IEC 62271-111 Chapter 8, "live test" content.

--- according to GB/T 11022-1999 increase in Chapter 8, Chapter 9, Chapter 10, Chapter 11.

--- deleted the IEC 62271-111 Annex C, Appendix D, Appendix E, Appendix F.

--- adds new appendix C, IEC 62271-111 rated current oil recloser, the rated current and the short-circuit breaking performance characteristics Preferably the coefficient normalized by the value of R10 included.

--- increased references.

The contents of most of the provisions of this standard and IEC 62271-111:2005 same, except that the main difference has been given instructions.

This should be used with standard GB/T 11022-1999 together, unless otherwise specified in the present standard, the reference standard GB/T 11022-1999. To simplify the representation of the same requirements, this standard reg same number and GB/T 11022-1999 used. Of these clauses Yung supplement given under the same title references, and additional terms are numbered starting from 101.

Appendix C of this standard is normative, Annex A, Annex B is an informative Annex.

The standard proposed by China Electrical Equipment Industrial Association.

This high voltage standard by the National Standardization Technical Committee (SAC/TC65) switching devices.

This standard was drafted. Xi'an High Voltage Apparatus Research Institute, China Electric Power Research Institute switches, Beijing Huayuan limited electric power technology research the company (Rural Power of the Electric Power Research Institute), high-voltage electrical machinery industry product quality inspection center (Shenyang), Huayi Electric Group Co., Ltd., Cooper Nike (Ningbo) Electric Co., Ltd., Ningbo Tianan Group Co., Ltd., Zhejiang Switchgear Factory Co., Shi Naide (Beijing) medium voltage electrical Co., Ltd., Beijing Career Distribution Automation Co., Ltd., the Quartet Huaneng Power Control System Co., Ltd., Ningbo Nature Nova automation Equipment Co., Ltd.

1 Overview

2 Normal and special conditions

GB/T 11022-1999 of Chapter 2 apply.

3 Terms and Definitions

11022-1999 defined in GB/T 2900.20 and GB/T applicable, and make the following additions.

3.101

Recloser high voltage AC high-voltagealternating-currentautomaticcircuitrecloser it can be performed automatically and in accordance with a predetermined breaking line AC superposition sequence and breaking operations overlap, and thereafter closed or automatic reset the lock has a control function of the high-voltage switchgear protection.

3.102

Automatic operation Automatically operated control means alone predetermined sequence is completed.

3.103

Unit operation After a breaking operation immediately following a closing operation. The last sequence of operations is also considered a breaking operation of one unit operation.

Note. See Figure 1.

3.104

Instantaneous (fast) opening operation instantaneous (fast) openingoperation the internal control means recloser opening operation without any delay, also referred to as a fast operation.

3.105

Delay (slow) opening operation time-delay (slow) openingoperation in the interior of the control means issues recloser opening operation signal after the elapse of a predetermined time delay, also referred to as a slow operation.

3.106

Time - current characteristic curve of time-currentcharacheristiccurve Through-flow time of the fault recloser curve between the current and breaking.

3.107

Instantaneous (fast) time - current characteristic curve of instantaneous (fast) characheristiccurve when the instantaneous opening operation to open the given time off flow through the flow time of the maximum value of the fault plotted - current curve. Only one product A.

3.108

Delay (slow) time - current characteristic time-delay (slow) characheristiccurve when delay the opening operation to open the given flow off the through-flow time average failure time plotted - current curve. A product can be A number of.

3.109

Closing lockout latchedclosing the contacts recloser locked in the OFF position, the closing function can not be achieved.

3.110

Sub-gate latch latchedopening Recloser locked in the closing position of the contacts, can not achieve the function of sub-gate.

3.111

Overlap distance open-closeinterval Refers to a recloser last contact electrode separator to the next overlap the first pole contacts the contact time between the intervals.

3.112

Reset time Timing (number) the time required for the system to return to its initial state.

3.113

Recloser trip series seriesreleaserecloser Exceeds a predetermined value by the main circuit current flows through a coil directly or indirectly provide the energy necessary to open the main contacts of recloser.

3.114

A shunt trip recloser shuntreleaserecloser in the case where the opening control means and the contact separating mechanism not take energy from the main circuit by the opening control means releases some the energy storage device of the recloser opens the contacts.

3.115

The hydraulic control recloser hydraulicoperatedrecloser by the hydraulic mechanism to control the minimum starting current, time - current characteristic, the order of operations, the overlap distance and the number of recloser operations.

3.116

The electronic control recloser electronicoperatedrecloser Using an electronic circuit to control the minimum starting current, time - current characteristic, the order of operations, the overlap distance and the number of recloser operations.

3.117

The minimum starting current minimumtrippingcurrent Coincidence reliably starting the main circuit to achieve the minimum current value of breaking.

3.118

C1 stage recloser classC1recloser One kind of coincidence, a weight having a low probability of breakdown type test verification predetermined capacitive current breaking process.

3.119

C2-level recloser classC2recloser One kind of coincidence, a weight having a very low probability of breakdown type test verification predetermined capacitive current breaking process.

3.120

E1 stage recloser classE1recloser E2 level is within the scope which does not belong to the coincidence 3.121 definition, having substantially the life of the electrical recloser. The basic electrical life is it means a unit operation in Table 1, with parameters under the conditions specified in Table C.3 and C.4 table corresponding to column 6, column 8, column 10, column 11 of the as the number of 8,4,4,16 respectively.

3.121

E2 stage recloser classE2recloser One - coincidence is, during its expected service life, the main circuit breaking with parts require no maintenance, other parts require little Maintenance (extended electrical life of the recloser) electrically life in full compliance with Table 1, under the conditions specified in the parameter table with Table C.3 and C.4 Number of unit operations.

Note. Few of lubrication maintenance means, if applicable, make-up gas and clean the outer surface.

3.122

Class M1 recloser classM1recloser M2 in the stage a non-visible part of the recloser 3.123 definition, has a substantially mechanical life (mechanical operations of type 2000 Test) recloser.

3.123

M2 level recloser classM2recloser the special requirements for frequent operation and design requirements and limited by a specific maintenance type test (having an extended it coincides mechanical life, a mechanical operation type test 10,000 times) authentication recloser.

Note. For electrical life, mechanical life and capacitive current breaking apart during re-breakdown probability, a combination of different levels of overlap is possible. For these heavy Clutch design, logo different grades of the combination should be in alphabetical order, for example, C1-M2.

3.124

Recloser stage S1 classS1recloser Network cable connected recloser, under normal circumstances, the recloser does not apply to this case.

3.125

Recloser stage S2 classS2recloser for aerial lines recloser.

4 Ratings

Ratings should include the following items.

a) Rated voltage (Ur);

b) rated insulation level;

c) rated frequency (fr);

d) rated current (Ir);

e) rated short time withstand current (Ik);

f) Rated peak withstand current (Ip);

g) rated short duration (TK);

h) closing and opening means, auxiliary and control circuits rated supply voltage (Ua);

i) breaking and/or insulation rated pressure of the compressed gas source (pre);

j) the nominal minimum starting current;

k) breaking the rated short-circuit current (Isc);

l) the rated short-circuit current;

m) lines and cables rated charging current (Il, Ic);

n) of rated operation sequence.