{"id":3176,"date":"2024-09-12T14:11:28","date_gmt":"2024-09-12T06:11:28","guid":{"rendered":"https:\/\/www.wolunelectric.com\/?post_type=product&p=3176"},"modified":"2026-05-08T16:39:43","modified_gmt":"2026-05-08T08:39:43","slug":"fujian-lead-ld-b10-10-series-temperature-controller-of-dry-transformer","status":"publish","type":"product","link":"https:\/\/www.wolunelectric.com\/th\/product\/fujian-lead-ld-b10-10-series-temperature-controller-of-dry-transformer\/","title":{"rendered":"Fujian LEAD LD-B10-10 Series Temperature Controller of Dry Transformer"},"content":{"rendered":"

1. Introduction<\/h4>\n

Safe operation and working life of power transformers depends largely on the
\nsafety and reliability of transformer winding. If the temperature of transformer
\nwinding exceed the temperature which insulation withstand, it will damage the
\ninsulation. This is one of the most important reasons that transformers cannot
\noperate normally.
\nLD-B10 series temperature controller of dry transformer (Referred to as
\ntemperature controller) is an intelligent controller designed especially for safe
\noperation of dry transformer. The temperature controller features adoption of single
\nchip computer technology and utilization of the platinum thermo-resistors embedded
\nin the winding of the dry transformer for detection and display of temperature rise of
\nthe transformer windings. It can start or stop the cooling fan automatically for forced
\nair cooling of windings and control over-temperature alarm and over-temperature
\ntripping output so that the transformer will be operated safely.<\/p>\n

2. Technical Indicators<\/h4>\n

2.1 Range of measurement:-30.0\u2103\uff5e240.0\u2103
\n2.2 Accuracy of measurement: Grade of accuracy: Grade 1(Grade 0.5 for
\ntemperature controller, Grade B for sensor)
\nResolution 0.1\u2103
\n2.3 Operating conditions: Room temperature:-20\u2103\uff5e55\u2103
\nRelative humidity: < 95% (25\u2103)
\nPower frequency: 50Hz or 60Hz (\u00b12Hz)
\nPower voltage: AC220V (+10%,-15%)
\nOr AC380V (3-phase 3-wire system) (+10%,-15%)
\n(Power voltage should be indicated before placing order, otherwise AC220V shall govern)
\n2.4\u00a0 Power consumption of temperature controller: \u22648W
\n2.5\u00a0 Execution standard: Production standard: JB\/T7631-2005 Electronic
\nThermo-controllersforTransformers
\nCertification passed:ISO9001:2008Quality Management Systems-requirements
\nTest passed: IEC61000-4:2002 International Standard and GB\/T17626-2008
\nStandard for Electromagnetic Compatibility Test and Measuring Technology
\n2.6 Relay contact output:
\nCapacity of contact offan:6A\/250VAC(Cos\u03c6=0.4)(Single-phase fan)
\n9A\/380VAC(Cos\u03c6=0.4)(Three-phasefan)
\nControl of output capacity:5A\/250VAC;5A\/30VDC(Resistance)
\n2.7 Protection class:IP40
\nProtection class of panel:IP54<\/p>\n

3.Type and Classification of Function<\/h4>\n\n\n\n\n\n\n\n\n\n\n
Type<\/td>\n\u00a0Function<\/td>\n<\/tr>\n
\u00a0LD-B10-10D<\/td>\nThree-phase circular measurement; Three-phase circular display\/maximum value display and mutual switching between two
\nfunctions; Input disconnection and trouble self-check display and output; Auto start and stop of cooling fan and output;
\nOver-temperature alarm display and output; Over-temperature
\ntripping display and output;Display of manual\/automodes of fan,
\noutput and mutual switching; Digital compensation for value
\ndisplayed in each channel; Function of “blackbox”;Timed start,
\nstop and control function of fan; Detection of output status<\/td>\n<\/tr>\n
LD-B10-10E<\/td>\nThe same as Type D,with addition of 4~20mA analogue current
\noutput.<\/td>\n<\/tr>\n
LD-B10-10F<\/td>\nThe same as Type D, with addition of RS485 serial
\ncommunications function.<\/td>\n<\/tr>\n
LD-B10-10G<\/td>\nThe same as Type D,with addition of one-way transformer room
\ntemperature measurement and control.<\/td>\n<\/tr>\n
\u00a0LD-B10-10I<\/td>\nThe same as Type D,with addition of one-way transformer core
\ntemperature measurement and alarm.<\/td>\n<\/tr>\n
\u00a0LD-B10-10L<\/td>\nThe same as Type D,with addition o fprotection and alarm
\nfunction for lack of phase and failure of fan.<\/td>\n<\/tr>\n
LD-B10-10C<\/td>\nThe same as Type D, with addition of interlock control of Pt100
\nand PTC on over-temp alarm and over-temp trip signal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\"fujian \"fujian<\/p>\n

\"fujian \"fujian<\/p>","protected":false},"excerpt":{"rendered":"

LD-B10-10 series intelligent temperature controller is designed for dry-type transformers. Featuring high precision measurement, dual LED display, automatic cooling fan control, over-temperature alarm and trip protection, with RS485 communication and 4-20mA analog output.<\/p>","protected":false},"featured_media":3186,"template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Fujian LEAD LD-B10-10 Series Temperature Controller of Dry Transformer","_seopress_titles_desc":"Intelligent LD-B10-10 Series Temperature Controller for dry-type transformers, 220V, high accuracy, dual LED display, auto fan control, overtemp alarm\/trip, RS485 & 4-20mA output.","_seopress_robots_index":""},"product_brand":[],"product_cat":[65],"product_tag":[],"class_list":{"0":"post-3176","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fan-ventilation-blower","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product\/3176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/media\/3186"}],"wp:attachment":[{"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/media?parent=3176"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_brand?post=3176"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_cat?post=3176"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.wolunelectric.com\/th\/wp-json\/wp\/v2\/product_tag?post=3176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}