This standard defines the terms and specifies the design criteria for the combination of a reciprocating internal combustion (RIC) engine and an alternating current (AC) generator as a single unit. This standard applies to ac generator sets driven by land and marine RIC engines, and does not apply to generator sets used in aviation or for driving land vehicles and locomotives. For certain special purposes (such as necessary hospital power supply, high-rise buildings, etc.), additional requirements may be necessary, and the provisions of this standard should be used as the basis. For generator sets driven by other types of reciprocating prime movers (such as biogas engines, steam engines), the provisions of this standard can be used as the basis. GB/T 2820.5-1997 Reciprocating internal combustion engine driven AC generator sets Part 5: Generator sets GB/T2820.5-1997 Standard download decompression password: www.bzxz.net

1C829.160.40
Shandong People's Government National Standard
CB/T2820.5—1997
eqv ISO 8528-5: 1993
Reciprocaling internal combustion cnginc drivenalternating current gcncrating setsPart 5: Gcncrating sets
1997 -12 -26 Issued
1998-12-01 Implementation
Issued by the State Bureau of Technical Supervision
GB/T2820.5—1997
This standard is equivalent to IS08523-5,1993 of the International Organization for Standardization. Compound internal combustion exhaust-driven alternating-flow generating sets: Part 3: Generating sets: It is a revision of GH836-87 and GB2836-5. For the effectiveness of the standard, the provisions of Figure 5 of 7.1.3 of this standard are different from those of IS023-5. This standard shall take effect from the date of its implementation. It replaces GBB355-87 and GB2820·90. This standard was proposed by the Northern Medical Machinery Industry Corporation of the People's Republic of China. This standard was sponsored by Lanzhou Power Supply Vehicle Research Institute. This standard was drafted by Lanzhou Electric Vehicle Research Institute, and the Western Power Equipment Factory, Subei Tunji Factory, Putuo Electric Motor Factory No. 1, Sufa Co., Ltd., Juzhou Electric Equipment General Factory, Guangxi Power Machine, and Guangsi Industrial Diesel Machinery Co., Ltd. Power Equipment Factory participated in the drafting. This standard is mainly composed of Chen Yingfang, Wang Rongqiang, Yang Zizhen, Lin Zhongting, Li Wuhua GB/T 2820.5—1997
ISO Foreword
ISO (International Organization for Standardization) is a worldwide federation of national standards bodies (150 members). The work of formulating standards is generally carried out through eight committees. Each member of the group is interested in a certain subject of a certain technical committee. Representatives of the relevant committees are also involved in the work of international organizations, governments and non-governmental organizations. In cooperation with ISO, it also works closely with the International Working Committee (WTO) to study all topics of electrotechnical standardization. The international standard draft is approved by the general voting of the members of the technical committee. The publication of an international standard requires a 75% vote of the members of the body.
National Standard S85281 is developed by the SC2* Test Branch Technical Committee of the ISO/TC7U Internal Combustion Engine Technical Committee.
TS) 528 includes the following sub-sections under the general title of "AC generator sets driven by compound internal combustion engines": Part 1: Application, specification and performance
Part 2: Generators
Part 3: AC generators for generator sets Part 4: Control devices and related devices
Part 5: Generator sets || tt||Part 6: Test methods
Part 1: Technical specifications for technical components and designPart 2: Requirements and tests for small power supply unitsPart 3: Measurement and evaluation of machine vibrationPart 4: Measurement and evaluation of machine vibrationPart 5: Specification of uninterruptible power supply units1 Scope
National Standard of the People's Republic of China
Alternating current generating sets driven by reciprocating internal combustion enginesPart 6: Generating sets
Reeprocating Internal combustion engine driven alternating current generating setsPart 7: Generating sets
CB/T 2820.51997
q[so The 8528-5:1993 HHRS standard defines and specifies the technical requirements for the use of a compound combustion (R) engine-type AC (.C.) generator set as a unit. The standard is suitable for generator sets powered by RC engines, and is suitable for use in aviation or driving land vehicles and single generator sets. Additional requirements may be necessary for some special applications (such as power supply to hospitals, high-rise buildings, etc.). The standard is applicable to generator sets driven by other high-efficiency prime movers (such as biogas engines and steam engines). The provisions of this standard can be used as the basis. 2 Reference standards The standard contains standard clauses, which are referenced in technical standards to form the clauses of this standard. When this standard is issued, the indicated version is valid, and all indicated standards will be integrated into the service party of this standard. The possibility of using the latest version of the following standards will be discussed. B282U.19H? Safety requirements for conventional internal combustion engines Part 1: Rated performance (erv IS Ri2R1,10F3)
(120.2199? Shared internal combustion engine powered AC generator set Part 2: Engine (eq1508528-2:1993)
CBT23U.3—!!? Shared internal combustion engine powered AC generator set Part 3, Generator set, AC generator (1086383.19)
G/T73—87 Rotating mountain machine technical requirements
3 Symbol
design: for Ding Shi no high performance data table will be accepted, EC to use the technical promise \ download share \ a look \, for the machine to sell this number of insurance table to method. 1SD buy six months Xu target "such as F target " ", minister, bad in the middle, the term "only a certain month of activity frequency month. In addition, the term "f
through the state lock version of the machine)
the maximum state frequency change rise
the minimum instantaneous love frequency drop
three rate setting device working frequency Check
actual frequency requirements for frequency limit equipment
Approved by the State Technical Supervision Bureau on December 26, 1997 and implemented on December 1, 195
Empty frequency ratio
Frequency rating for empty frequency vehicles
Measurement point specification
GB/T2820.5—1997
Rated frequency (rated frequency)
Maximum empty frequency
Minimum empty frequency
Actual power Frequency at time
Overload rate
Width of point rate
Continuous short-circuit current
Total machine room
Preparation time for cutting off
Off-load operation time
Stop time
Additional time
Recovery time after load reduction
Recovery time of load addition
Total rising time
Speed ​​room
On-load operation time||t t||Start preparation time
Load transfer time
Intermediate time
Electricity recovery time
Output pressure recovery time after load increase
Output pressure quick recovery time after load increase
Start delay time
Starting time
Pre-lubrication time
Electricity setting change rate
Electricity mutual setting change rate
Descending voltage
Rising voltage Voltage
Reset voltage
Recovery voltage
Set voltage
Highest voltage deviation
Lowest voltage deviation
No-load voltage
Highest voltage when load decreases Uare-i
GB/T2820.5—1997
The most critical instantaneous voltage when load increases
Adjust voltage value
Overcurrent protection Minimum peak value
Electricity
Voltage modulation
Highest value of voltage modulation
Modulation peak value
Full width of voltage
Descending frequency deviation of linear curve
Rising frequency deviation of linear curve
Steady-state thermal rate tolerance band
Frequency difference of linear curve
Frequency setting range
Frequency setting range|| tt||Transition voltage capacity
Switch setting range
Lower voltage range
High voltage range
Specification/power characteristic deviation
Stable voltage positive tolerance bandwww.bzxz.net
Switch frequency band
(For the initial frequency) Transient frequency deviation (see 5.3.3) Time accuracy
(For the rated frequency) State error (see 5.3.-) frequency
Relative frequency setting range
Relative frequency setting rise range
Excitation setting drop
AC non-current compensation current change
Period uncertainty
Over-discharge rate setting ratio
Stable current deviation
Related voltage setting range
4 Other provisions and additional requirements
Electric current unbalance
GB/T 2820.5--1997
4.1 For the offshore installation and generating units that must comply with the basic specifications, they shall meet the requirements of such companies. Such companies shall be declared by users before placing orders. For the "no other equipment" in the "c. Signature machine correction, the additional requirements for the material under different conditions are agreed upon by the user and the user
4.? If it is to meet any other regulatory requirements (such as female quick check and/or legal management), the material should be produced by the user before issuing the order.
Ren He Jing's other requirements are limited by the manufacturer! and the user agree.5 Frequency characteristics
The overall frequency characteristics mainly depend on the performance of the generator regulator. The response of the dynamic heat rate characteristics to relatively large changes depends on the comprehensive working conditions of all the system components (such as the torque characteristics of the generator, the type of pressure system contained, the characteristics of the load, the condition and the resistance, etc., see 5.3). Because the dynamic characteristics of the generator set determined by the unique design of the new US mail cow may directly issue the frequency problem, the terminology of the frequency problem, and the completion of this. 1--5.3 (Table 1--Table 3). 5.1 Steady-state power condition (based on Table 1)
Power drop
Digital power/power sustainability curve
5.1.3 Power/power sustainability difference
Under the condition determined by the steady-state power condition with
increase, the frequency difference between the rated no-load power and the new rated power at nominal power is expressed as a fraction of the rated power, f (Figure 1):
af.-= × 1cn
In the power range between no-load and nominal power, the relationship between the steady-state frequency and the generated active power is shown in Figure 2. In the power range between no-load and nominal power, the maximum value of the linear frequency power characteristic curve is the rated power (see Figure 2).
In the constant power range, the frequency of the generator set fluctuates at a certain value within a certain percentage of the rated power before the indicated value is X100
. The maximum value is within the range between 20% of the power and the nominal power.
For power taken at 29°, the steady-state power section may show higher values ​​(see Figure 2).
5.2-1.1
5.2. 1.2 Frequency setting range GBT2820.51992 The maximum adjustable frequency and the potential frequency range (see Figure 1). Frequency setting drop range Relative frequency setting drop range The frequency setting range is the frequency setting range for the frequency setting rise range Frequency setting change technique 5.3 Dynamic frequency rise (Table 3 and Table 4) Maximum instantaneous rise (version 2) Small instantaneous rate drop The maximum frequency setting expressed as a fraction of the frequency: × 1GC
The range between the nominal air frequency and the lowest adjustable air frequency is shown in Figure 1];
The gradual setting range expressed as a certain ten-thousandth of the normal frequency: af - x 1un
The range between the highest measurable annual power and the standard test frequency (see Figure 1):
Ayy = fm - f..
The frequency setting range expressed as a percentage of the rated power: fou=f×100
Under the remote control condition, the frequency setting change rate is expressed by a percentage of each relative frequency setting range: V - JL × 100
In the process of reducing the power cost by higher power, the high frequency appears in the sudden change from low power to high power. The low frequency system appears in the sudden change from low power to high power. The steady-state power difference is connected according to the load increase (.) and load decrease (to rated frequency). The load increase and load decrease (+) frequency core time are respectively connected according to the load deviation (+) frequency core time (+) frequency core time (- ... t||Frequency tolerance band
6 Over-frequency characteristic
GB/T2820.5—1997
3 yuan)
The frequency difference between the undershoot (or overshoot) rate and the rated rate during the process of a certain load change is expressed as a fraction relative to the rated rate:
(The negative sign indicates an undershoot after the load increases, and the positive sign indicates an overshoot after the load decreases)
Note: 1=10,7 is the medium operating characteristic value for the heating increase under the condition of small and negative loads! One is on the left. The frequency difference between the rated frequency and the lower (or upper) frequency during a sudden load change is expressed as a fraction of the rated frequency.
The frequency of the transient rated frequency will be within the specified range (negative sign indicates an undershoot after a certain load increase, positive sign indicates an overshoot after a certain load change).
The time between leaving the steady-state frequency band and permanently re-entering the specified tolerance band after a given load change (4.
Within a given speed measurement period after a certain load increase or decrease, the frequency is within the specified range around the desired frequency. This tolerance band is expressed as a fraction of the rated frequency: ×. 100
The over-rate sustaining quality is given in 5.1--6.4 (see Table 4). Table 4
Record high allowable frequency"
The new rate limiting device
Setting rate
: Symbol
The radiation below the excitation rate limit value-"safety direct by the generator correction steam factory specified average rate (see GH/T2822.2-19975.6.11
With the airspace of the generator set, the over-frequency limit device is operated. Note that in practice, for the setting forecast, the specified allowable over-frequency limit device should be used instead of the vehicle (yuanGH/T 3855.2.:195T 3.3.3
Expired rate ratio
Over-edition vehicle limit installation structure
"
GB/T2820.5-1997
The expired vehicle limit installation structure is the difference between the specified rate and the established rate divided by the value expressed as a fraction of the specified frequency:
For a given set frequency and, the following two points are discussed when the limit installation structure is used:
1: Limit value (see [2323.2 —13 Generator generation and safety design,
2: For a given safety factor, the second is the design voltage characteristics of the generator's total fast power and over-current protection (see Figure 5)
The main cost of the generator voltage characteristic is the original design and power of the generator. The performance of the device is determined by: the steady-state frequency characteristic and the power sustainability of the generator. The symbols and definitions are given in 7.1--7.3 (57) 7.1||tt ||Object voltage three conditions table 5)
also used to explain:
rated good voltage
no-load positive
steady-state deviation
uneven energy
1S528.5
When the generator is in the new rated frequency and the new rated transmission, the line-to-line voltage of the generator is:, it is the voltage that can be generated by the given power supply, in order to limit the line-to-line voltage selected by the market at the no-load frequency and no-load, the line voltage of the generator must be selected according to the no-load and rated voltage at the generator end. The power loss in the steady state condition is the maximum deviation from the rated voltage. The positive deviation is expressed as a percentage of the rated voltage: the ratio of the negative sequence voltage to the positive sequence voltage. The power imbalance is expressed as the rated voltage. The power card setting range is the voltage range for the power user.5—1997
For load and power output, within a certain power range, the maximum possible range of the rise and fall of the rated power at the end of the rated power is:
aU, = p
The voltage setting range indicated by a certain fraction of the rated self-voltage: -2X100
For all loads between the load and the rated output and within the agreed power range, the rated power output at the generator terminals is within the range between the rated output voltage and the reduced adjustment range
For the self-voltage setting range, please note the following
The light layer setting rise range
And the self-voltage setting upper range
The voltage setting change speed is above the effective medium voltage (see)
When the load decreases, the maximum output voltage
7.3.2 When the load increases, the voltage setting drop range indicated by the rated voltage is: - - ×
For all loads between the rated output and the rated frequency, the generator voltage must rise to the rated value at rated frequency.
. . -.U
And the voltage setting value expressed as 100% of the rated voltage is: Daup .
Under the condition of long-distance regulation, the rate of change of the voltage regulation is expressed by the fraction of the relative beat voltage regulation range: Uaxino
At the point of high efficiency, the alternating current of a lower load is used. In a certain real change from low load to higher load, the voltage of the low output voltage is increased by (-) and the load is less. The voltage of the complex voltage is shifted to the state zone when the load increases and the tolerance band is changed. The stability band of the voltage is t 2820.51997
table (】
degrees must be loaded to prove that the voltage drop is expressed as a percentage of the rated voltage when the generator is driven at a fixed frequency under normal power control: ×1
Usnatin
The voltage drop is expressed as a percentage of the rated voltage when the generator is driven at a fixed frequency under normal power control. It also refers to the voltage drop when the generator is driven at a fixed frequency under normal power control, and suddenly the rated voltage is drawn or the rated voltage is drawn. The self-rising:ar
Buddha load I change the specified value is different from the specified value, and the power use number
for a certain specified load I kill the production of non-high stability point measurement: fast recovery power a small amount within the specified range, it passes the station in the locked and medical capacity shortage band:: month, ten torque commercial load or, fast power
before the light (see area
dead load change from the start to the time when the voltage recovers and maintains the specified state capacitance difference band when we use it) te = t,
is the basis for the given cycle center of the actual or disaster method. The current load is fixed. The running state of the electric bed is not reached. The specified requirement is: a = 2et,×iec
. The tolerance band is the positive fraction of the rated center of the month: 100
represents a certain steady-state pressure, and at some representative frequencies of the low frequency, it is the average reverse value of the fixed speed at the new fixed frequency station! A certain number represents the quasi-periodic electric production certificate (peak to peak): Xloc
1 This three-day complaint period is not effective or negative, which leads to the period or the book movement,
2 The lightning 1 feature see Figure 1112)
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