Principais Caracter\u00edsticas do Produto<\/h3>\n\n\n\nIsolamento e Desempenho El\u00e9trico<\/h3>\n\n\n\n
Fully-enclosed epoxy resin cast insulation: The unit is integrally formed by vacuum epoxy resin casting with no internal voids, providing excellent insulation performance. It withstands the 12kV system operating voltage and passes power-frequency and impulse withstand voltage tests. Partial discharge level is \u226410pC. Long-term operation is free from insulation aging risks, leakage, and oil contamination, making it suitable for oil-free indoor distribution applications.<\/p>\n\n\n\n
Residual voltage winding design: An integrated residual voltage winding provides 100\/3V output for insulation monitoring of ground faults, compatible with three-phase, five-limb voltage transformer wiring configurations to meet insulation monitoring requirements of non-effectively grounded neutral systems.<\/p>\n\n\n\n
Wide voltage ratio compatibility: Supports standard voltage ratios (e.g., 10\/0.1\/0.1\/3kV). Metering accuracy can reach Class 0.2; protection class can be customized to 3P\/6P, meeting the requirements of metering, protection, and insulation monitoring applications. The F-type simultaneously satisfies the electrical parameter requirements of capacitor bank discharge coils.<\/p>\n\n\n\n
High anti-pollution-flashover performance: The high-voltage side employs an integrated shed-type insulation structure with a large creepage distance, providing excellent resistance to pollution flashover in contaminated environments and reducing the risk of surface tracking.<\/p>\n\n\n\n
Caracter\u00edsticas Estruturais e de Instala\u00e7\u00e3o<\/h3>\n\n\n\n
Fully-enclosed dry-type construction: The integral cast structure has no exposed live parts, with a protection rating of IP20. The oil-free design eliminates fire hazards. The compact, low-profile form factor is compatible with standard switchgear installation dimensions.<\/p>\n\n\n\n
Multi-function integrated design: The F-type integrates voltage transformer and discharge coil functions, simultaneously enabling voltage monitoring and residual charge dissipation from capacitor banks. This simplifies in-cabinet equipment configuration, reduces installation space, and lowers overall costs.<\/p>\n\n\n\n
Clear terminal arrangement: Secondary terminals are protected by transparent covers with clear labeling, facilitating wiring and preventing misconnection and short circuits. Terminal layout conforms to in-cabinet secondary circuit wiring standards.<\/p>\n\n\n\n
Flexible mounting: The base metal mounting plate is equipped with fixing holes for bolted installation, supporting horizontal in-cabinet indoor mounting. The assembly is mechanically rigid with excellent vibration resistance, enabling compact in-cabinet arrangement.<\/p>\n\n\n\n
Recursos de Opera\u00e7\u00e3o e Manuten\u00e7\u00e3o<\/h3>\n\n\n\n
Maintenance-free operation: The dry, oil-free construction eliminates leakage and fire hazards. The high mechanical strength of the epoxy cast body provides impact and aging resistance for long-term maintenance-free operation, reducing operational costs. The F-type eliminates the need for a separate discharge coil, reducing maintenance points.<\/p>\n\n\n\n
Wide operating temperature range: Designed for ambient temperatures from -30\u00b0C to +70\u00b0C. Epoxy resin properties remain stable across the full temperature range with no risk of embrittlement or deformation, suitable for varied regional climatic conditions.<\/p>\n\n\n\n
High-reliability design: The iron core is constructed from high-grade silicon steel laminations, and windings are wound from enameled copper wire. Low operational losses and minimal heat generation ensure the unit withstands system switching overvoltages and lightning impulse overvoltages, guaranteeing reliable metering, protection, and insulation monitoring signals.<\/p>\n\n\n\n
Par\u00e2metros T\u00e9cnicos (Especifica\u00e7\u00f5es T\u00edpicas)<\/h3>\n\n\n\nAplica\u00e7\u00f5es<\/h3>\n\n\n\n
Classe de tens\u00e3o aplic\u00e1vel: sistemas de energia CA internos de 10kV (Um=12kV).<\/p>\n\n\n\n
Cen\u00e1rios de aplica\u00e7\u00e3o t\u00edpicos:<\/p>\n\n\n\n
Medi\u00e7\u00e3o de tens\u00e3o, medi\u00e7\u00e3o de energia e prote\u00e7\u00e3o de rel\u00e9s em pain\u00e9is de manobra de m\u00e9dia tens\u00e3o internos e subesta\u00e7\u00f5es pr\u00e9-fabricadas;<\/p>\n\n\n\n
sistemas de distribui\u00e7\u00e3o de 10kV em subesta\u00e7\u00f5es de distribui\u00e7\u00e3o, empresas industriais e de minera\u00e7\u00e3o, edif\u00edcios comerciais e parques industriais;<\/p>\n\n\n\n
Aquisi\u00e7\u00e3o de sinais de monitoramento, controle e prote\u00e7\u00e3o de tens\u00e3o em sistemas de automa\u00e7\u00e3o de energia;<\/p>\n\n\n\n
Insulation monitoring in non-effectively grounded neutral systems, compatible with three-phase, five-limb wiring configurations;<\/p>\n\n\n\n
F-type applicable to reactive power compensation devices for simultaneous voltage monitoring and capacitor bank discharge.<\/p>\n\n\n\n
Functional purpose: Steps down high system voltage to a standard low voltage (100V) for supply to metering instruments, protection devices, and control equipment, while providing electrical isolation between the primary and secondary systems. The residual voltage winding monitors system ground faults for insulation supervision. The F-type additionally dissipates residual charge from capacitor banks to ensure maintenance safety.<\/p>\n\n\n\n
Condi\u00e7\u00f5es de Opera\u00e7\u00e3o<\/h3>\n\n\n\nCondi\u00e7\u00f5es Normais de Opera\u00e7\u00e3o<\/h3>\n\n\n\n
Altitude: \u22642000m;<\/p>\n\n\n\n
Ambient temperature: -30\u00b0C to +70\u00b0C, without severe temperature fluctuations;<\/p>\n\n\n\n
Umidade relativa: \u226495% (sem condensa\u00e7\u00e3o);<\/p>\n\n\n\n
Environmental conditions: Free from corrosive gases, flammable or explosive media, severe vibration and shock, and significant dust or salt mist;<\/p>\n\n\n\n
Instala\u00e7\u00e3o: Montagem em poste interno, protegido de luz solar direta, chuva e condensa\u00e7\u00e3o.<\/p>\n\n\n\n
Condi\u00e7\u00f5es Operacionais Especiais (Requer Personaliza\u00e7\u00e3o)<\/h3>\n\n\n\n
Altitude superior a 2000m;<\/p>\n\n\n\n
Temperatura ambiente fora da faixa de -30\u00b0C a +70\u00b0C;<\/p>\n\n\n\n
Ambientes severamente polu\u00eddos, com n\u00e9voa salina ou quimicamente corrosivos;<\/p>\n\n\n\n
Condi\u00e7\u00f5es de opera\u00e7\u00e3o com alta vibra\u00e7\u00e3o ou alto impacto;<\/p>\n\n\n\n
Rela\u00e7\u00f5es de tens\u00e3o n\u00e3o padronizadas, classes de precis\u00e3o ou dimens\u00f5es de instala\u00e7\u00e3o.<\/p>\n\n\n\n
Instala\u00e7\u00e3o e Manuten\u00e7\u00e3o<\/h3>\n\n\n\nRequisitos de Instala\u00e7\u00e3o<\/h3>\n\n\n\n
Pre-installation inspection: Inspect the voltage transformer for external defects \u2014 the cast body must be free from cracks, voids, and damage; terminals must be clearly labeled and all accessories present. Verify that the model, rating, voltage ratio, and accuracy class match design requirements. For F-type units, confirm that discharge function parameters comply with reactive power compensation device requirements.<\/p>\n\n\n\n
Mounting and fixing: Position the voltage transformer in the designated location within the switchgear cabinet and secure it through the base mounting holes with bolts, ensuring firm installation with no looseness or misalignment. The mounting surface must be level to prevent eccentric loading.<\/p>\n\n\n\n
High-voltage side wiring: Connect high-voltage terminals per design requirements, ensuring tight connections and good contact. Maintain adequate safety clearance between high-voltage leads, grounded parts, and other live parts to prevent discharge. F-type units must be wired in accordance with discharge coil wiring requirements.<\/p>\n\n\n\n
Low-voltage side wiring: Connect low-voltage terminals per labeling, with separate wiring for metering, protection, and residual voltage circuits. Verify correct wiring. Secondary circuits must never be short-circuited and must be reliably grounded (single-point grounding) to prevent overvoltage.<\/p>\n\n\n\n
Insulation verification: After installation, measure insulation resistance (HV to LV and ground; LV to ground) to confirm compliance with insulation requirements. Verify that secondary circuit wiring is correct with no short circuits or open circuits. For F-type units, verify that the discharge function operates correctly.<\/p>\n\n\n\n
Diretrizes de Manuten\u00e7\u00e3o<\/h3>\n\n\n\n
Periodically inspect the external condition of the voltage transformer: the cast body must be free from cracks, damage, and discharge marks; high-voltage terminals must show no looseness or oxidation; secondary terminal protective covers must be intact.<\/p>\n\n\n\n
Periodically inspect high-voltage and low-voltage connections for tightness with no signs of overheating or discoloration; verify that the low-voltage circuit ground is reliable with no short circuit or open circuit risk.<\/p>\n\n\n\n
Periodically test insulation resistance and voltage ratio to confirm that metering and protection accuracy meets requirements; also verify proper operation of the residual voltage circuit and insulation monitoring function. For F-type units, periodically test discharge function parameters.<\/p>\n\n\n\n
Clean dust and contamination from the transformer surface; prevent oil and corrosive substances from adhering; keep the equipment dry and clean.<\/p>\n\n\n\n
If cracks, discharge, overheating, voltage ratio deviation, or functional failure are detected, de-energize immediately for inspection and replace the equipment if necessary. Continued operation with known defects is strictly prohibited.<\/p>\n\n\n\n
Precau\u00e7\u00f5es de Seguran\u00e7a<\/h3>\n\n\n\n
Secondary windings must never be short-circuited. A short circuit in the secondary circuit during operation will produce excessive current and endanger equipment and personnel. During maintenance, the secondary circuit must be reliably open-circuited and grounded.<\/p>\n\n\n\n
During installation, avoid mechanical impact or collision with the cast body to prevent epoxy resin cracking and insulation damage, which would compromise insulation performance and anti-pollution-flashover capability.<\/p>\n\n\n\n
High-voltage side wiring must use dedicated insulated leads, maintaining adequate safety clearance from grounded parts and other live parts to prevent phase-to-phase or phase-to-ground discharge. F-type unit wiring must simultaneously satisfy both voltage transformer and discharge coil wiring requirements.<\/p>\n\n\n\n
Equipment grounding must be reliable; the base grounding terminal must be securely connected to the cabinet grounding busbar.<\/p>\n\n\n\n
During storage, keep the unit in a dry, ventilated, cool environment, protected from direct sunlight, high temperatures, humidity, and mechanical compression to prevent aging or deformation of the cast body.<\/p>\n\n\n\n
A instala\u00e7\u00e3o, a coloca\u00e7\u00e3o em funcionamento e a manuten\u00e7\u00e3o devem ser realizadas por pessoal el\u00e9trico qualificado, em estrita conformidade com os procedimentos operacionais de seguran\u00e7a el\u00e9trica.<\/p>\n\n\n\n
Escopo de Fornecimento Padr\u00e3o<\/h3>\n\n\n\nCategoria de Par\u00e2metro<\/td> Item<\/td> Especifica\u00e7\u00e3o T\u00e9cnica<\/td><\/tr> Par\u00e2metros El\u00e9tricos<\/td> Tens\u00e3o do Sistema<\/td> 10kV CA (Um=12kV)<\/td><\/tr> <\/td> Frequ\u00eancia Nominal<\/td> 50Hz<\/td><\/tr> <\/td> | Tens\u00e3o Prim\u00e1ria Nominal<\/td> 10kV<\/td><\/tr> <\/td> Tens\u00e3o Secund\u00e1ria Nominal<\/td> 100V (medi\u00e7\u00e3o\/prote\u00e7\u00e3o), 100\/3V (tens\u00e3o residual\/monitoramento de isolamento)<\/td><\/tr> <\/td> | Classe de Precis\u00e3o do Medidor<\/td> 0.2 \/ 0.5 \/ 1<\/td><\/tr> <\/td> | Classe de Precis\u00e3o de Prote\u00e7\u00e3o<\/td> 3P \/ 6P<\/td><\/tr> <\/td> | Tens\u00e3o de Suporte em Frequ\u00eancia de Rede (terminal de alta tens\u00e3o)<\/td> 42kV \/ 1min, sem ruptura<\/td><\/tr> <\/td> Tens\u00e3o de Suporte a Impulso (pico)<\/td> 75kV, sem ruptura<\/td><\/tr> <\/td> N\u00edvel de Descarga Parcial<\/td> \u226410pC<\/td><\/tr> <\/td> | Resist\u00eancia de Isolamento (Alta Tens\u00e3o para Baixa Tens\u00e3o e terra)<\/td> \u22651000M\u03a9<\/td><\/tr> Par\u00e2metros Estruturais e de Materiais<\/td> Meio Isolante<\/td> Molde completo em resina ep\u00f3xi<\/td><\/tr> <\/td> | Classifica\u00e7\u00e3o de Prote\u00e7\u00e3o<\/td> IP20<\/td><\/tr> <\/td> | M\u00e9todo de Montagem<\/td> Instala\u00e7\u00e3o interna tipo poste aparafusado<\/td><\/tr> <\/td> | Classe T\u00e9rmica de Isolamento<\/td> Classe B (130\u00b0C)<\/td><\/tr> Par\u00e2metros Ambientais<\/td> Altitude de Opera\u00e7\u00e3o<\/td> \u22642000m (personaliza\u00e7\u00e3o para alta altitude dispon\u00edvel)<\/td><\/tr> <\/td> | Temperatura Ambiente de Opera\u00e7\u00e3o<\/td> -30\u00b0C a +70\u00b0C<\/td><\/tr> <\/td> | Temperatura de Armazenamento<\/td> -40\u00b0C a +85\u00b0C<\/td><\/tr> <\/td> | Umidade Relativa<\/td> \u226495% (sem condensa\u00e7\u00e3o)<\/td><\/tr> Normas Aplic\u00e1veis<\/td> Normas Nacionais<\/td> GB 1207 Voltage Transformers; GB\/T 20840 series; DL\/T 653 Technical Conditions for Ordering Discharge Coils for Shunt Capacitors (F-type)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nNormas e Certifica\u00e7\u00f5es<\/h3>\n\n\n\n
The product complies with GB 1207 Voltage Transformers, GB\/T 20840.1 Instrument Transformers \u2014 Part 1: General Requirements, GB\/T 20840.3 Instrument Transformers \u2014 Part 3: Additional Requirements for Inductive Voltage Transformers, and other applicable national standards. The F-type additionally complies with DL\/T 653 Technical Conditions for Ordering Discharge Coils for Shunt Capacitors. The product has passed type tests and meets the operational requirements of 10kV indoor power systems.<\/p>\n\n\n\n
Ap\u00eandice: Desenho Esquem\u00e1tico do Produto<\/p>\n\n\n\n
Configura\u00e7\u00e3o Padr\u00e3o<\/h3>\n\n\n\nN\u00e3o.<\/th> Nome<\/th> Prop\u00f3sito<\/th><\/tr> 1<\/td> Transformador de Tens\u00e3o JDZX (F) 9-10<\/td> Unidade Central, fornecendo Transforma\u00e7\u00e3o de Tens\u00e3o \/ Isolamento \/ Isolamento (Descarga F<\/td><\/tr> 2<\/td> Parafusos de Montagem \/ Arruelas<\/td> Transformador de Tens\u00e3oInstala\u00e7\u00e3o Fixa<\/td><\/tr> 3<\/td> Tampa Protetora Transparente do Terminal Secund\u00e1rio<\/td> Prote\u00e7\u00e3o de Terminal, Preven\u00e7\u00e3o de Conex\u00e3o Incorreta \/ Curto-Circuito<\/td><\/tr> 4<\/td> Manual do Produto<\/td> Instala\u00e7\u00e3o \/ Opera\u00e7\u00e3o Manuten\u00e7\u00e3oGuia Documento, Descarga F<\/td><\/tr> 5<\/td> Certificado de Produto e Relat\u00f3rio de Teste de F\u00e1brica<\/td> Documento de Certifica\u00e7\u00e3o de Desempenho de Qualidade, Dados de Teste de Raz\u00e3o de Tens\u00e3o \/ Erro \/ Descarga (F)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nInforma\u00e7\u00f5es do pedido<\/h3>\n\n\n\n
Antes de fazer o pedido, confirme a tens\u00e3o do sistema aplic\u00e1vel, a classe de precis\u00e3o de medi\u00e7\u00e3o, a classe de precis\u00e3o de prote\u00e7\u00e3o, o m\u00e9todo de montagem, o grau de prote\u00e7\u00e3o e a quantidade necess\u00e1ria de acordo com os desenhos do projeto e a especifica\u00e7\u00e3o da fonte.<\/p>\n\n\n\n![\"JDZX(F)9-10](\"https:\/\/yieou.com\/wp-content\/uploads\/2026\/07\/yieou-source-1622-62181e90cb86a899-02-5ad4997499.png\")
Transformador de Tens\u00e3o JDZX (F) 9-10<\/figcaption><\/figure>\n\n\n\n<\/p>\n\n
| Categoria de Par\u00e2metro<\/td> | Item<\/td> | Especifica\u00e7\u00e3o T\u00e9cnica<\/td><\/tr> | ||||||||||||||||||
| Par\u00e2metros El\u00e9tricos<\/td> | Tens\u00e3o do Sistema<\/td> | 10kV CA (Um=12kV)<\/td><\/tr> | ||||||||||||||||||
| <\/td> | Frequ\u00eancia Nominal<\/td> | 50Hz<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Tens\u00e3o Prim\u00e1ria Nominal<\/td> | 10kV<\/td><\/tr> | ||||||||||||||||||
| <\/td> | Tens\u00e3o Secund\u00e1ria Nominal<\/td> | 100V (medi\u00e7\u00e3o\/prote\u00e7\u00e3o), 100\/3V (tens\u00e3o residual\/monitoramento de isolamento)<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Classe de Precis\u00e3o do Medidor<\/td> | 0.2 \/ 0.5 \/ 1<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Classe de Precis\u00e3o de Prote\u00e7\u00e3o<\/td> | 3P \/ 6P<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Tens\u00e3o de Suporte em Frequ\u00eancia de Rede (terminal de alta tens\u00e3o)<\/td> | 42kV \/ 1min, sem ruptura<\/td><\/tr> | ||||||||||||||||||
| <\/td> | Tens\u00e3o de Suporte a Impulso (pico)<\/td> | 75kV, sem ruptura<\/td><\/tr> | ||||||||||||||||||
| <\/td> | N\u00edvel de Descarga Parcial<\/td> | \u226410pC<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Resist\u00eancia de Isolamento (Alta Tens\u00e3o para Baixa Tens\u00e3o e terra)<\/td> | \u22651000M\u03a9<\/td><\/tr> | ||||||||||||||||||
| Par\u00e2metros Estruturais e de Materiais<\/td> | Meio Isolante<\/td> | Molde completo em resina ep\u00f3xi<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Classifica\u00e7\u00e3o de Prote\u00e7\u00e3o<\/td> | IP20<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | M\u00e9todo de Montagem<\/td> | Instala\u00e7\u00e3o interna tipo poste aparafusado<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Classe T\u00e9rmica de Isolamento<\/td> | Classe B (130\u00b0C)<\/td><\/tr> | ||||||||||||||||||
| Par\u00e2metros Ambientais<\/td> | Altitude de Opera\u00e7\u00e3o<\/td> | \u22642000m (personaliza\u00e7\u00e3o para alta altitude dispon\u00edvel)<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Temperatura Ambiente de Opera\u00e7\u00e3o<\/td> | -30\u00b0C a +70\u00b0C<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Temperatura de Armazenamento<\/td> | -40\u00b0C a +85\u00b0C<\/td><\/tr> | ||||||||||||||||||
| <\/td> | | Umidade Relativa<\/td> | \u226495% (sem condensa\u00e7\u00e3o)<\/td><\/tr> | ||||||||||||||||||
| Normas Aplic\u00e1veis<\/td> | Normas Nacionais<\/td> | GB 1207 Voltage Transformers; GB\/T 20840 series; DL\/T 653 Technical Conditions for Ordering Discharge Coils for Shunt Capacitors (F-type)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nNormas e Certifica\u00e7\u00f5es<\/h3>\n\n\n\nThe product complies with GB 1207 Voltage Transformers, GB\/T 20840.1 Instrument Transformers \u2014 Part 1: General Requirements, GB\/T 20840.3 Instrument Transformers \u2014 Part 3: Additional Requirements for Inductive Voltage Transformers, and other applicable national standards. The F-type additionally complies with DL\/T 653 Technical Conditions for Ordering Discharge Coils for Shunt Capacitors. The product has passed type tests and meets the operational requirements of 10kV indoor power systems.<\/p>\n\n\n\n Ap\u00eandice: Desenho Esquem\u00e1tico do Produto<\/p>\n\n\n\n Configura\u00e7\u00e3o Padr\u00e3o<\/h3>\n\n\n\n
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