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DL/T 1074-2019: Integrated uninterruptible power supply equipment of DC and AC for power system
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Basic data | Standard ID | DL/T 1074-2019 (DL/T1074-2019) | | Description (Translated English) | Integrated uninterruptible power supply equipment of DC and AC for power system | | Sector / Industry | Electricity & Power Industry Standard (Recommended) | | Classification of Chinese Standard | F29 | | Word Count Estimation | 40,424 | | Date of Issue | 2019-06-04 | | Date of Implementation | 2019-10-01 | | Older Standard (superseded by this standard) | DL/T 1074-2007 | | Regulation (derived from) | Natural Resources Department Announcement No. 7 of 2019 | | Issuing agency(ies) | National Energy Administration | DL/T 1074-2019: Integrated uninterruptible power supply equipment of DC and AC for power system---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Integrated uninterruptible power supply equipment of DC and AC for power system
ICS 27.100
F 29
People's Republic of China Electric Power Industry Standard
Replace DL/T 1074-2007
DC and AC for power
Integrated uninterruptible power supply equipment
2019-06-04 released
2019-10-01 implementation
Issued by National Energy Administration
Table of contents
Foreword...III
1 Scope...1
2 Normative references...1
3 Terms and definitions...2
4 Models and ratings...3
4.1 Model...3
4.2 Ratings...3
5 Technical requirements...4
5.1 Environmental conditions for normal use...4
5.2 Electrical conditions for normal use...4
5.3 General requirements...5
5.4 Clearance and creepage distance...6
5.5 Electrical insulation performance...6
5.6 Degree of protection...7
5.7 Noise...7
5.8 Temperature rise...7
5.9 Battery pack capacity...7
5.10 Accident discharge capability...8
5.11 Load capacity...8
5.12 Continuous power supply capability...8
5.13 Control bus voltage adjustment function...8
5.14 Voltage and current adjustment range...8
5.15 Constant current accuracy, voltage stabilization accuracy and ripple coefficient...9
5.16 Setting error of DC current and DC voltage...9
5.17 Harmonic current...10
5.18 Parallel current sharing performance...10
5.19 Pressure limiting and current limiting characteristics...10
5.20 Efficiency and power factor...10
5.21 Dynamic voltage transient range and transient response recovery time...11
5.22 Soft start characteristics...11
5.23 Switch overshoot range...11
5.24 Starting inrush current...11
5.25 Other requirements of UPS and INV...11
5.26 Protection and alarm functions...12
5.27 Monitoring device...15
5.28 Electromagnetic compatibility...17
6 Test method...18
6.1 General inspection...18
6.2 Electrical clearance and creepage distance test...18
6.3 Electrical insulation performance test...18
6.4 Protection level test...18
6.5 Noise test...19
6.6 Temperature rise test...19
6.7 Battery pack capacity test...19
6.8 Accident discharge capability test...19
6.9 Load capacity test...19
6.10 Continuous power supply capability test...19
6.11 Voltage adjustment function test of control bus...19
6.12 Voltage and current adjustment range test...20
6.13 Steady current accuracy, voltage stabilization accuracy and ripple coefficient test...20
6.14 Setting error test of DC current and DC voltage...22
6.15 Harmonic current test...23
6.16 Parallel current sharing performance test...23
6.17 Pressure limiting and current limiting characteristic test...24
6.18 Efficiency and power factor test...24
6.19 Dynamic voltage transient range and transient response recovery time test...25
6.20 Soft start characteristic test...26
6.21 Switch machine overshoot amplitude test...26
6.22 Starting impulse current test...26
6.23 Other tests of UPS and INV...27
6.24 Protection and alarm function test...28
6.25 Monitoring device test...28
6.26 Electromagnetic compatibility test...29
7 Inspection Rules...30
7.1 General requirements...30
7.2 Factory test...30
7.3 Type test...30
7.4 Inspection items...30
8 Marking, packaging, transportation, storage...32
8.1 Logo...32
8.2 Packaging...33
8.3 Transport...33
8.4 Storage...33
9 Random documents to be provided...33
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is a comprehensive revision of DL/T 1074-2007 "DC and AC integrated uninterruptible power supply equipment for electric power".
The main differences between this standard and DL/T 1074-2007 are as follows.
--Added equipment configuration requirements;
--Modified the fluctuation range of AC input voltage;
-Modify the electrical clearance and creepage distance;
--Modified the insulation test voltage value;
- Modified the requirements for noise;
--Modified the battery discharge end voltage value;
--Modified the battery impulse discharge current value;
- Modified the requirements of the output voltage adjustment range;
- Deleted the classification of phase-controlled charging devices;
--Increase the requirements for DC conversion power supply and active inverter power supply for power;
--Increase the requirements for the setting error of DC current and DC voltage;
--Increase the requirements for the overshoot range of the switch machine and the starting inrush current;
--Added the requirement for synchronous lockout of maintenance bypass switch of AC uninterruptible power supply for power;
--Added the requirement for the voltage limit of the negative bus of DC power supply to ground;
--Added the requirements for the alarm of AC channeling and DC mutual channeling;
- Deleted the flash alarm requirement;
--Increase the requirement of current monitoring;
--Added the requirements for battery loop monitoring;
- Added emergency alarm signal;
--Added the requirements for the display mode of the monitoring device;
--Increase the requirement of single battery voltage detection and internal resistance detection;
--Modified the requirements of detection accuracy and detection cycle;
- Supplement the requirements of electromagnetic compatibility;
--The informative appendix A, informative appendix B, informative appendix C and informative appendix D have been deleted.
After the implementation of this standard, it will replace DL/T 1074-2007.
This standard was proposed by the China Electricity Council.
This standard is under the jurisdiction of the Power Industry High Voltage Switchgear and DC Power Supply Standardization Technical Committee.
The organization responsible for drafting this standard. Shenzhen Aotexun Power Equipment Co., Ltd., China Electric Power Research Institute, Shandong Luneng Intelligent Technology
Technology Co., Ltd.
Participated in the drafting of this standard. State Grid Sichuan Electric Power Company Electric Power Research Institute, Xu Ji Power Co., Ltd., Shanghai Electric Power Transmission and Distribution
Test Center Co., Ltd., Shenzhen Power Supply Bureau Co., Ltd., State Grid Jibei Electric Power Co., Ltd. Zhangjiakou Power Supply Company, State Grid Chongqing Electric Power Company
Maintenance Branch, Xuchang Cape Inspection and Research Institute Co., Ltd., State Grid Shanghai Electric Power Company Maintenance Company, State Power Investment Corporation Scientific
Technology Research Institute Co., Ltd., Guangdong Power Grid Power Dispatching Control Center, Guangxi Power Grid Co., Ltd. Electric Power Research Institute, State Grid Hebei
Provincial Electric Power Company, Dalian Lushun Power Electronic Equipment Co., Ltd., Shandong Taikai Automation Co., Ltd., Guangdong Power Grid Co., Ltd.
Power Research Institute, Emerson Network Power Co., Ltd., China Southern Power Grid Co., Ltd. EHV Transmission Company Guangzhou Bureau, Sichuan Power
Power Design Consulting Co., Ltd., State Grid Jiangsu Electric Power Company Electric Power Research Institute, Risheng Group Co., Ltd., State Grid Anhui Electric Power
The company's Electric Power Research Institute, State Grid Liaoning Electric Power Research Institute, Yishite Group Co., Ltd., Yantai Dongfang
Electronic Yulin Electric Co., Ltd., Qingdao Haihuide Electric Co., Ltd.
The main drafters of this standard. Wang Fengren, Zhao Mengxin, Zhang Zhenqian, Meng Xiangjun, Li Jing, Gu Nihong, Luo Zhijun, Kong Xiangjun, Yang Zhongliang,
Wang Hong, Zhao Yingchun, Chen Zhuo, Dai Chunyi, Wang Wendong, Zhao Jun, Liu Wei, Zhou Ke, Miao Junjie, Zhou Guangyuan, Xu Qingfeng, Chen Yilong, Sun Rui,
Long Minquan, Pan Feng, Zhao Ke, Li Quanxi, Deng Aiyue, Yang Wei, Wu Zhiqi, Wang Dianwei, Li Xuefeng, Li Hongqiao, Zhang Guojun, Yu Shiyou.
The release status of previous versions of this standard.
The suggestions or comments during the implementation of this standard are fed back to the Standardization Center of the China Electricity Council (Baiguang Road, Beijing).
No. 100761).
DC and AC integrated uninterruptible power supply equipment for electric power
1 Scope
This standard specifies the model and rating of DC and AC integrated uninterruptible power supply equipment for electric power (hereinafter referred to as integrated power supply equipment)
Values, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, etc. requirements.
This standard is applicable to the design and manufacture of DC and AC integrated uninterruptible power supply equipment in power plants, substation (distribution) power stations and other power projects.
Manufacturing, selection, ordering and testing. It is also suitable for AC uninterruptible power supply for electric power (hereinafter referred to as UPS) and inverter power supply for electric power (hereinafter referred to as
Called INV), DC conversion power supply for power (hereinafter referred to as DC/DC for power), two-way DC conversion power supply (hereinafter referred to as two-way DC/DC),
Design, manufacture and selection of DC conversion power supply for communication (hereinafter referred to as DC/DC for communication) and active inverter power supply (hereinafter referred to as AINV)
Selection, ordering and testing.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 2900.1 Basic terminology for electrical engineering
GB/T 2900.32 Electrical terminology power semiconductor devices
GB/T 2900.33 Electrical Engineering Terminology Power Electronic Technology
GB/T 4208-2017 Shell protection grade
GB/T 4728.1 Graphical symbols for electrical diagrams Part 1.General requirements
GB/T 4728.7 Graphical symbols for electrical diagrams-Part 7.Switches, control and protection devices
GB/T 9254 Information Technology Equipment Radio Disturbance Limits and Measurement Methods
GB/T 13384 General technical conditions for packaging of electromechanical equipment
GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic field radiation immunity test
GB/T 17626.4 Electromagnetic compatibility test and measurement technology Electrical fast transient pulse group immunity test
GB/T 17626.5 Electromagnetic compatibility test and measurement technology surge (impact) immunity test
GB/T 17626.6 Electromagnetic compatibility test and measurement technology Radio frequency field induced conducted disturbance immunity test
GB/T 17626.8 Electromagnetic compatibility test and measurement technology Power frequency magnetic field immunity test
GB/T 17626.10 Electromagnetic compatibility test and measurement technology Damped oscillation magnetic field immunity test
GB/T 17626.18 Electromagnetic compatibility test and measurement technology Damped oscillation wave immunity test
DL/T 329 Communication interface of low-voltage power supply equipment in substation based on DL/T 860
DL/T 459 DC power supply equipment for electric power
DL/T 856-201x DC power supply for electric power and integrated power supply monitoring device
DL/T 1392-2014 DC power supply insulation monitoring device technical conditions
DL/T 1397.1-2014 General technical requirements of test equipment for electric DC power supply system Part 1.Battery voltage inspection instrument
DL/T 1397.5-2014 General technical requirements of test equipment for electric DC power supply system Part 5.Battery internal resistance tester
DL/T 5044 Technical Specification for Design of DC Power Supply System in Power Engineering
DL/T 5491 Technical Specification for Design of AC Uninterruptible Power Supply System in Power Engineering
3 Terms and definitions
GB/T 2900.1, GB/T 2900.32, GB/T 2900.33, DL/T 459, DL/T 1392-2014 and the following terms established
And definitions apply to this standard.
3.1
Integrated power supply equipment
The DC power supply, AC uninterruptible power supply (UPS) for power, inverter power supply (INV) for power, and two-way DC conversion power supply (double
To DC/DC), communication DC conversion power supply (communication DC/DC), active inverter power supply (AINV) and other devices are combined into one, total
Enjoy the battery pack of DC power supply and a complete set of equipment for unified monitoring.
The combination is based on DC power supply as the core, DC power supply and any one or more of UPS, INV and DC/DC for communication
The resulting combination is called an integrated power supply device.
3.2
AC uninterruptible power supply for electric power
Referred to as UPS. A power supply device composed of a rectifier and an inverter, which cooperates with the battery pack of the DC power supply to provide
The required AC uninterruptible power supply. The DC input loop and AC loop of the device are electrically isolated.
3.3
Inverter for power system
Referred to as INV. An AC uninterruptible power supply device for electric power without a rectifier.
3.4
DC-DC converter for power system
Referred to as DC/DC for power. A DC-DC power conversion device, the input of which is connected with the DC bus of the DC power supply, and the output
The performance meets the requirements of DC power supply. The input port and output port of the device are electrically isolated.
3.5
Bidirectional DC conversion power supply
Referred to as two-way DC/DC. A two-port (or four-port) DC power conversion device composed of two power DC/DCs in reverse parallel connection
Set, its current flow direction has seamless switching performance. The various ports of the device are electrically isolated.
3.6
DC conversion power supply for communication
Abbreviated as DC/DC for communication. A DC-DC power conversion device, the input of which is connected with the DC bus of the DC power supply, and the output
The performance meets the requirements of communication power supply. The input port and output port of the device are electrically isolated.
3.7
Active inverter
Referred to as AINV. An inverter power supply device that converts DC power into AC power and feeds the AC power grid.
3.8
Power factor
Under ideal sine wave voltage, the ratio of active power to apparent power.
3.9
Transient voltage variation range
The amount of change in the output voltage when the input voltage is constant, the load changes suddenly, and when the output is the rated load unchanged, and the input voltage changes suddenly.
3.10
Transient response recovery time recovery time
From the moment when the output voltage changes suddenly and exceeds the voltage regulation accuracy range, to the moment when it returns to the voltage regulation accuracy range and no longer exceeds the range
Stop, the time required.
3.11
Current peak factor
When the load is nonlinear, the ratio of the maximum allowable peak output current to the effective value of the output current.
3.12
Distortion factor
The ratio of the root mean square value of the harmonic component to the effective value of the fundamental component.
3.13
Total transfer time
From the moment when the output of the AC uninterruptible power supply for electric power is abnormal or the output exceeds the tolerance condition, to the moment when the output amount is switched, it is
time.
4 Models and ratings
4.1 Model
The model of integrated power equipment should be compiled in the following way.
4.2 Rating
4.2.1 AC rated input voltage
Single phase. 220V;
Three-phase. 380V.
4.2.2 AC rated input frequency 50Hz.
4.2.3 The rated DC output voltage is 50V, 115V, 230V.
4.2.4 The nominal DC output voltage is 48V, 110V, 220V.
4.2.5 Rated output current of charging device
The rated output current of the charging device should prefer the following values.
10 A, 15 A, 20 A, 30 A, 40 A, 50 A, 60 A, 80 A, 100 A, 160 A,.200 A, 250 A, 300 A, 400 A,
500 A.
4.2.6 The rated capacity of the battery is 100 Ah ~ 3000 Ah.
4.2.7 AC rated output voltage
Single phase. 220V;
Three-phase. 380V.
Note. If there are special voltage requirements, they should be negotiated with the manufacturer.
4.2.8 AC rated output frequency 50Hz.
Note. If there are special frequency requirements, it should be negotiated with the manufacturer.
4.2.9 AC rated output capacity
The rated output capacity of UPS and INV should prefer the following values.
Single-phase output. 1 kVA, 2 kVA, 3 kVA, 5 kVA, 7.5 kVA, 8 kVA, 10 kVA, 15 kVA, 20 kVA, 25 kVA,
30 kVA;
Three-phase output. 8 kVA, 10 kVA, 15 kVA, 20 kVA, 25 kVA, 30 kVA, 40 kVA, 50 kVA, 75 kVA, 100 kVA,
125 kVA.
5 Technical requirements
5.1 Environmental conditions for normal use
5.1.1 The altitude does not exceed 2 000 m, and the high altitude environment should be derated according to relevant national standards.
5.1.2 The ambient temperature is not higher than 40 ℃ and not lower than -5 ℃.
5.1.3 The daily average relative humidity is not more than 95%, and the monthly average relative humidity is not more than 90%, without condensation.
5.1.4 The horizontal acceleration of vibration should not exceed 0.3 g, and the vertical acceleration should not exceed 0.15 g.
5.1.5 There is no strong electromagnetic interference at the installation and use site, and the external magnetic field induction intensity does not exceed 0.5 mT.
5.1.6 The vertical inclination of installation shall not exceed 5%.
5.1.7 There is no explosive dangerous medium, no harmful gas that corrodes metal and damages insulation, and conductive medium in the place of use, and no mold is allowed.
5.2 Electrical conditions for normal use
5.2.1 The fluctuation range of AC input voltage does not exceed -15%～20% of the rated value.
5.2.2 The frequency fluctuation range of AC input power does not exceed ±2% of the rated value.
5.2.3 The three-phase unbalance of AC input voltage shall not exceed 5%.
5.2.4 The AC input voltage is a sine wave, and the total harmonic content does not exceed 10%.
5.2.5 The DC input voltage range of UPS, INV, DC/DC for communication and AINV does not exceed 80% of the nominal voltage of the DC power supply~
120%, the DC input voltage range of power DC/DC and bidirectional DC/DC does not exceed 85% to 120% of the nominal voltage of the DC power supply.
Note. The DC input voltage range for special requirements is determined by the manufacturer according to the battery parameters.
5.3 General requirements
5.3.1 Device configuration
5.3.1.1 The wiring mode of the DC power supply, the number of charging devices and the rated current, the number of batteries and the rated capacity, and the DC circuit breaker
The selection of fuse and fuse should comply with the relevant regulations of DL/T 5044 (except for the content not covered by DL/T 5044). Modular power supply unit,
An independent input circuit breaker should be configured at the power input end of each module.
5.3.1.2 The connection mode, number of groups, capacity, and structure requirements of UPS and INV shall comply with the relevant regulations of DL/T 5491.
5.3.1.3 Three-phase AC input should be used for charging modules with a rated power of 3 kW and above; UPS with a rated capacity of 5 kVA and above should be used
Use three-phase three-wire input; AINV with a rated input power of 5 kW and above should use three-phase AC output.
5.3.1.4 The integrated power supply equipment should be equipped with a digital measuring meter (Among them, the ammeter shall not be less than 4 ½ digits, and the voltmeter shall not be less than
4 bits). charging device output voltage, DC bus voltage, battery pack voltage, battery pack current, UPS output voltage, UPS output
Current, communication DC/DC output voltage, etc., can also be equipped with an independent float current meter according to the needs of measurement accuracy.
5.3.1.5 The AC input side of the integrated power supply equipment should be equipped with Class C lightning protection devices, which should have fault alarm signals and be equipped with independent
breaker.
5.3.2 Structural requirements
5.3.2.5 All fasteners should have anti-corrosion plating or coating, and the fastening connection should have anti-loosening measures.
5.3.2.6 The components and terminals should be arranged neatly, with clear levels and no overlap, so as to facilitate maintenance and disassembly. The installation position of the long-term live heating element
It should be on the top of the cabinet. The AC terminals and DC terminals should be arranged on different layers (sides) in the cabinet. The positive and negative terminals should be isolated.
It should be arranged within 350 mm～1 700 mm from the bottom of the cabinet.
5.3.2.7 The DC power supply should be equipped with dedicated test terminals for steady current accuracy and voltage stabilization accuracy to facilitate wiring during on-site regular inspection.
5.3.2.8 The cabinet shall have good ventilation and heat dissipation conditions, and forced ventilation measures may be adopted when necessary.
5.3.2.9 The distance between the batteries in the battery cabinet shall not be less than 15 mm, and the distance between the batteries and the upper partition shall not be less than 150 mm.
5.3.2.10 The battery rack shall be provided with protective grounding, and insulation measures should be provided between the battery and the shelf.
5.3.3 Component requirements
5.3.3.1 The selection of various components and materials should meet the requirements of national standards or industry standards, and there should be a certificate or a certificate of qualified quality.
file. Do not use obsolete or backward components.
5.3.3.2 The colors of wires, indicator lights, buttons, paint, etc. should comply with the national standards or industry standards.
5.3.3.3 The fuses in important positions should be equipped with alarm contacts, and the circuit breakers in important positions should be equipped with auxiliary contacts and alarm contacts, for example.
Battery outlet, charging device output, AC inlet, etc.
5.3.3.4 The feeder switch should be connected in parallel to the DC bus bar for easy maintenance and replacement.
5.3.3.5 The connectors of similar components should be universal and interchangeable, and should be reliable in contact and easy to plug and unplug. The contact resistance of the connector,
Insertion and withdrawal force, allowable current and life should meet the requirements of national standards or industry standards.
5.3.4 Equipment load level
The load level of the integrated power supply equipment is level one (that is, continuous output rated current).
5.4 Clearance and creepage distance
The minimum distance between two live conductors and between live conductors and uncharged conductors in the cabinet shall meet the requirements of Table 1.In-cabinet bus or
The electrical gap between bare live conductors of different poles, and between bare live conductors and uninsulated uncharged conductors shall not be less than
12 mm, the creepage distance should not be less than 20 mm.
5.5 Electrical insulation performance
5.5.1 Insulation resistance
5.5.1.1 Insulation resistance test and power frequency withstand voltage test shall be carried out at the following specified locations.
a) Between each independent circuit and ground (ie metal frame);
b) Between circuits without electrical connection.
5.5.1.2 Use an insulation resistance tester with an open circuit voltage of the voltage specified in Table 2 to measure the insulation resistance and insulation resistance of the specified position in 5.5.1.1
It should not be less than 10MΩ.
5.5.2 Power frequency withstand voltage
The part specified in 5.5.1.1 should be able to withstand the power frequency (DC voltage can also be used) with a frequency of (50±5) Hz for 1 min
During the test, there should be no breakdown or flashover. The test voltage of the power frequency withstand voltage (or DC withstand voltage) test is shown in Table 2.
5.5.3 Impact withstand voltage
5.5.3.1 The impact pressure test shall be carried out at the following specified locations.
a) Between each circuit and ground (ie metal frame);
b) Between AC circuit and DC circuit;
c) Between the input circuit and the output circuit without electrical connection.
5.5.3.2 The location specified in 5.5.3.1 shall be able to withstand the impulse voltage test of the standard lightning wave specified in Table 2.After the test, the integrated electric
The main functions of the source equipment should comply with the standard. During the test, a flashover that does not cause damage to the insulation is allowed. If a flashover occurs,
The power frequency withstan...
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