{"id":255217,"date":"2024-10-19T16:52:12","date_gmt":"2024-10-19T16:52:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-ts-60871-32015\/"},"modified":"2024-10-25T12:18:48","modified_gmt":"2024-10-25T12:18:48","slug":"bsi-pd-iec-ts-60871-32015","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-ts-60871-32015\/","title":{"rendered":"BSI PD IEC\/TS 60871-3:2015"},"content":{"rendered":"

This part of IEC 60871<\/span> <\/span>, which is a technical specification, gives guidance on the protection of shunt capacitors and shunt capacitor banks. it applies to capacitors according to IEC 60871\u20111<\/span> <\/span>.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Internal fuses
4.1 General <\/td>\n<\/tr>\n
10<\/td>\n4.2 Fuse characteristics
4.2.1 Rated current
4.2.2 Rated discharge capability
4.2.3 Disconnecting capability
4.2.4 Voltage withstand capability after operation
4.3 Influence of capacitor element configuration on capacitor life
4.3.1 Capacitor with all elements connected in parallel
4.3.2 Capacitor with elements connected in series and parallel
5 External fuses
5.1 General <\/td>\n<\/tr>\n
11<\/td>\n5.2 Fuse characteristics
5.2.1 Rated current
5.2.2 Rated voltage
5.2.3 Time-current characteristics <\/td>\n<\/tr>\n
12<\/td>\n5.2.4 Discharge capability
5.3 Fuse types
5.3.1 General
5.3.2 Expulsion fuses
Figures
Figure 1 \u2013 Fuse types <\/td>\n<\/tr>\n
13<\/td>\n5.3.3 Current-limiting fuses
5.3.4 Combination current-limiting\/expulsion fuses
5.4 Influence of capacitor bank configuration on fuse selection
5.4.1 Single series section grounded star and delta banks
5.4.2 Single series section ungrounded star banks
5.4.3 Multiple series section banks
5.5 Coordination with case rupture curves <\/td>\n<\/tr>\n
14<\/td>\n6 Unbalance detection
6.1 Operation
6.2 Types of unbalance protection
6.2.1 Neutral current (Figure 3)
6.2.2 Neutral voltage (Figure 4) <\/td>\n<\/tr>\n
15<\/td>\n6.2.3 Current unbalance between neutrals (Figure 5)
6.2.4 Phase voltage unbalance (Figure 6)
6.2.5 Voltage difference (Figure 7)
6.2.6 Current unbalance in bridge connection (Figure 8)
6.3 Current and voltage transformers
6.3.1 Current transformers <\/td>\n<\/tr>\n
16<\/td>\n6.3.2 Voltage transformers
6.4 Relays and protection settings
6.5 Sensitivity <\/td>\n<\/tr>\n
17<\/td>\n6.6 Initial unbalance
7 Overload current
7.1 Operation
7.2 Protective arrangement
7.3 Current transformers
7.4 Relays <\/td>\n<\/tr>\n
18<\/td>\n7.5 Protective settings
8 Over and undervoltage
8.1 Operation
8.2 Overvoltage protection
8.3 Undervoltage protection
8.4 Reclosing <\/td>\n<\/tr>\n
19<\/td>\n9 Other protection
9.1 Surge arresters
9.1.1 General
9.1.2 Operation
9.1.3 Lightning transients
9.1.4 Switching transients
9.1.5 Temporary overvoltages
9.1.6 Rated voltage <\/td>\n<\/tr>\n
20<\/td>\n9.1.7 Energy absorption
9.2 Damping devices
9.2.1 Capacitor switching
9.2.2 Inrush currents <\/td>\n<\/tr>\n
21<\/td>\n9.2.3 Voltage transients
9.2.4 Ratings
9.3 Synchronized switching
9.3.1 Operation
9.3.2 Breaker contacts delay
10 Safety
10.1 Discharging devices
10.1.1 General <\/td>\n<\/tr>\n
22<\/td>\n10.1.2 Internal resistors
10.1.3 External discharge devices
10.1.4 Discharging after disconnection
10.2 Dead metallic parts <\/td>\n<\/tr>\n
23<\/td>\nFigure 2 \u2013 Typical case rupture curves for approximately 30 000 cm\u00b3 case volume
Figure 4 \u2013 Star connection with voltage transformer between neutral and ground
Figure 3 \u2013 Star connection with the neutral grounded through a current transformer <\/td>\n<\/tr>\n
24<\/td>\nFigure 6 \u2013 Double-star connection with ungrounded neutral
Figure 5 \u2013 Star connection with ungrounded neutral and voltage transformers connected in an open delta
Figure 8 \u2013 Bridge connection
Figure 7 \u2013 Star connection with grounded neutraland voltage transformers connected indifferential measurement
Figure 9 \u2013 Line overcurrent relays for capacitor bank, grounded <\/td>\n<\/tr>\n
25<\/td>\nFigure 10 \u2013 Line overcurrent relays for capacitor bank, ungrounded
Table 1 \u2013 Melting currents for type-K (fast) fuse links, in amperes <\/td>\n<\/tr>\n
26<\/td>\nTable 2 \u2013 Melting currents for type-T (slow) fuse links, in amperes <\/td>\n<\/tr>\n
27<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Shunt capacitors for AC power systems having a rated voltage above 1 000 V – Protection of shunt capacitors and shunt capacitor banks<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2015<\/td>\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":255220,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[570,2641],"product_tag":[],"class_list":{"0":"post-255217","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-31-060-70","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/255217","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\/255220"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=255217"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=255217"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=255217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}