{"id":362300,"date":"2024-10-20T01:39:59","date_gmt":"2024-10-20T01:39:59","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-tr-632822020\/"},"modified":"2024-10-26T02:36:40","modified_gmt":"2024-10-26T02:36:40","slug":"bsi-pd-iec-tr-632822020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-tr-632822020\/","title":{"rendered":"BSI PD IEC TR 63282:2020"},"content":{"rendered":"

The purpose of this document is to collect information and report experience in order to make recommendations for the standardization of voltage levels and related aspects (power quality, EMC, measurement \u2026) for LVDC systems (systems with voltage level lower than 1 500 V d.c.).<\/p>\n

Rationale for the proposed voltage values are given. Variation of parameters for the voltage (power quality) and recommendation for their boundaries are defined. Nevertheless, some of the technical items are not exhaustively explained in this document and some gaps are identified for future work.<\/p>\n

Attention is paid to the definition of DC voltage.<\/p>\n

Systems in which a unipolar voltage is interrupted periodically for certain purposes, e.g. pulse voltage, are not considered.<\/p>\n

Traction systems are excluded from this document.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
9<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
14<\/td>\n4 Structure of LVDC systems
4.1 General
4.2 Architecture
Figures
Figure 1 \u2013 Unipolar, balanced and bipolar DC systems <\/td>\n<\/tr>\n
15<\/td>\n4.3 Operation modes
4.3.1 Passive DC systems
4.3.2 Active DC systems
5 LVDC voltage division
5.1 General
Tables
Table 1 \u2013 Difference between unipolar and bipolar systems <\/td>\n<\/tr>\n
16<\/td>\n5.2 Voltage bands
Figure 2 \u2013 Voltage bands in DC systems <\/td>\n<\/tr>\n
17<\/td>\n5.3 Operation ranges with respect to DC voltage and time
Figure 3 \u2013 DC Voltage areas for safe interoperability <\/td>\n<\/tr>\n
18<\/td>\n5.4 States <\/td>\n<\/tr>\n
19<\/td>\n6 Power quality phenomena relevant to LVDC networks
6.1 General
6.2 Relationships between voltage band and power quality in LVDC systems <\/td>\n<\/tr>\n
20<\/td>\n6.3 Supply voltage deviation
Figure 4 \u2013 Relationships between voltage band and power quality in LVDC systems <\/td>\n<\/tr>\n
21<\/td>\n6.4 Ripple and high frequency noise <\/td>\n<\/tr>\n
22<\/td>\n6.5 Voltage swell
Figure 5 \u2013 Voltage swell example <\/td>\n<\/tr>\n
23<\/td>\n6.6 Voltage dip
Figure 6 \u2013 Voltage dip example <\/td>\n<\/tr>\n
24<\/td>\n6.7 Voltage supply interruption
6.8 Rapid voltage change (RVC) <\/td>\n<\/tr>\n
25<\/td>\n6.9 Voltage surges
Figure 7 \u2013 RVC event: example of a change in average voltagethat results in an RVC event <\/td>\n<\/tr>\n
26<\/td>\n6.10 Voltage unbalance
Figure 8 \u2013 Example of voltage surge <\/td>\n<\/tr>\n
27<\/td>\n7 Recommendations
7.1 General
7.2 Recommended voltages
Figure 9 \u2013 A schematic of a bipolar system (the CIGRE B4 DC test system) <\/td>\n<\/tr>\n
28<\/td>\n7.3 EMC and compatibility levels
Figure 10 \u2013 Relation between disturbance levels (schematic significance only)
Table 2 \u2013 Voltage between lines (unipolar systems)or line and midpoint (bipolar systems)
Table 3 \u2013 Voltage between lines (bipolar systems) <\/td>\n<\/tr>\n
29<\/td>\nFigure 11 \u2013 LVAC voltage compatibility and immunity levels <\/td>\n<\/tr>\n
30<\/td>\n7.4 Power quality recommendations
Table 4 \u2013 Immunity: DC input and output power ports, residential,commercial and light industrial environment
Table 5 \u2013 Immunity: DC input and output power ports \u2013 Industrial environment <\/td>\n<\/tr>\n
31<\/td>\n7.5 Measurement methods
7.5.1 General
7.5.2 DC system RMS value integration time
7.5.3 DC power quality measurement methods <\/td>\n<\/tr>\n
32<\/td>\nAnnex A (informative)PQ waveforms collected from a certain LVDC project
Figure A.1 \u2013 Voltage deviation caused by load switching
Figure A.2 \u2013 Voltage ripple in steady state <\/td>\n<\/tr>\n
33<\/td>\nFigure A.3 \u2013 Voltage dip caused by the start-up of motor load <\/td>\n<\/tr>\n
34<\/td>\nAnnex B (informative)Load distance in DC distribution systems
Table B.1 \u2013 1,5 (\u00b10,75) kV typical load distance of overhead DC lines
Table B.2 \u2013 750 (\u00b1375) V, 220 (\u00b1110) V typical section load distance of overhead DC lines <\/td>\n<\/tr>\n
35<\/td>\nAnnex C (informative)Electric power and power quality computation in DC systems
C.1 DC RMS value of voltage or current
C.2 General electric power system: decomposition of a general electric load <\/td>\n<\/tr>\n
36<\/td>\nC.3 Computation of electric powers and PQ indices
Figure C.1 \u2013 Equivalent model of a general electric load <\/td>\n<\/tr>\n
39<\/td>\nC.4 Representation of electric powers in AC system
C.5 Representation of electric powers in DC system
Figure C.2 \u2013 Representation of electric powers in AC system
Figure C.3 \u2013 Representation of electric powers in DC system <\/td>\n<\/tr>\n
40<\/td>\nC.6 Power quality indices in DC system
Figure C.4 \u2013 Ripples <\/td>\n<\/tr>\n
41<\/td>\nC.7 Illustration example of deformation power in DC system <\/td>\n<\/tr>\n
42<\/td>\nC.8 Main conclusions on electric value computation in DC systems
Figure C.5 \u2013 DC powers
Table C.1 \u2013 Different powers <\/td>\n<\/tr>\n
43<\/td>\nC.9 Need of characteristics of DC voltage
Figure C.6 \u2013 Compatibility level measured in differential mode values <\/td>\n<\/tr>\n
44<\/td>\nAnnex D (informative)District LVDC system demonstration project in Tongli, China
D.1 Project overview
D.2 Voltage level selection principle
Figure D.1 \u2013 Architecture of the district LVDC system in Tongli <\/td>\n<\/tr>\n
45<\/td>\nD.3 System operation <\/td>\n<\/tr>\n
46<\/td>\nAnnex E (informative)An office building with general building utilities and office work places
Figure E.1 \u2013 Office building with general building utilities and office work places <\/td>\n<\/tr>\n
48<\/td>\nFigure E.2 \u2013 Overview of DC-zones for DC system <\/td>\n<\/tr>\n
51<\/td>\nTable E.1 \u2013 Aspects regarding the DC zone classification in DC installation <\/td>\n<\/tr>\n
52<\/td>\nAnnex F (informative)An example of configurations for active DC systems
F.1 General
F.2 Structure
F.3 State of grid (SOG)
Figure F.1 \u2013 Active DC distribution system <\/td>\n<\/tr>\n
53<\/td>\nTable F.1 \u2013 Examples in case of 350\/700 V DC systems <\/td>\n<\/tr>\n
54<\/td>\nFigure F.2 \u2013 DC distribution system with one load and one source
Table F.2 \u2013 Allowed voltages cable drop <\/td>\n<\/tr>\n
55<\/td>\nFigure F.3 \u2013 DC distribution system with more than one loadand a source and increasing source power
Figure F.4 \u2013 Distribution system with more than one loadand a source and DUMP LOAD active <\/td>\n<\/tr>\n
56<\/td>\nFigure F.5 \u2013 Distribution system with more than one loadand source in overloaded mode <\/td>\n<\/tr>\n
57<\/td>\nAnnex G (informative)Preferred voltage in different countries
G.1 Preferred voltage in China
Table G.1 \u2013 Nominal voltage in LVDC distribution system <\/td>\n<\/tr>\n
58<\/td>\nTable G.2 \u2013 Nominal voltage in ELVDC equipment <\/td>\n<\/tr>\n
59<\/td>\nG.2 Preferred voltage in the Netherlands
Table G.3 \u2013 Comparison between DC and AC system voltages <\/td>\n<\/tr>\n
60<\/td>\nG.3 Preferred voltage in Germany
Table G.4 \u2013 Overview of the recommended voltage classes (VC)and the corresponding U2 and U3 values <\/td>\n<\/tr>\n
61<\/td>\nAnnex H (informative)Voltage with respect to earth
Figure H.1 \u2013 DC voltage definitions <\/td>\n<\/tr>\n
62<\/td>\nFigure H.2 \u2013 DC voltage bands relative to earth <\/td>\n<\/tr>\n
63<\/td>\nFigure H.3 \u2013 DC voltages to earth \u2013 examples <\/td>\n<\/tr>\n
64<\/td>\nAnnex I (informative)CIGRE approaches for DC systems
Figure I.1 \u2013 Temporary DC pole to ground voltage profiles in DC systems <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

LVDC systems. Assessment of standard voltages and power quality requirements<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n70<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":362306,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-362300","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/362300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/362306"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=362300"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=362300"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=362300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}