{"id":1617,"date":"2026-05-08T00:00:00","date_gmt":"2026-05-08T00:00:00","guid":{"rendered":"http:\/\/yieou.com\/?post_type=products&p=1617"},"modified":"2026-09-15T02:07:57","modified_gmt":"2026-09-15T02:07:57","slug":"state-grid-standard-voltage-transformer","status":"publish","type":"products","link":"https:\/\/yieou.com\/ar\/product\/state-grid-standard-voltage-transformer\/","title":{"rendered":"\u0645\u062d\u0648\u0644 \u062c\u0647\u062f JDZ9-10 \/ JDZQN-10 (\u0645\u0639\u064a\u0627\u0631 \u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629)"},"content":{"rendered":"

I. Product Overview<\/h2>\n\n\n\n

\u0645\u062d\u0648\u0644 \u0627\u0644\u062c\u0647\u062f JDZ9-10 \/ JDZQN-10 (\u0645\u0639\u064a\u0627\u0631 \u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629)<\/a> \u0645\u062d\u0648\u0644 \u062c\u0647\u062f \u0645\u063a\u0644\u0642 \u0628\u0627\u0644\u0643\u0627\u0645\u0644\u060c \u0645\u0635\u0628\u0648\u0628 \u0628\u0631\u0627\u062a\u0646\u062c \u0627\u0644\u0625\u064a\u0628\u0648\u0643\u0633\u064a\u060c \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062c\u0627\u0641\u060c \u0645\u0635\u0645\u0645 \u062e\u0635\u064a\u0635\u064b\u0627 \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u062a\u0631\u062f\u062f\u0629 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0628\u062c\u0647\u062f 10 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a (Um=12 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a). \u064a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629\u060c \u0648\u064a\u0633\u062a\u062e\u062f\u0645 \u0639\u0645\u0644\u064a\u0629 \u0635\u0628 \u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u062a\u062c\u0645\u0639 \u0628\u064a\u0646 \u0648\u0638\u0627\u0626\u0641 \u0627\u0644\u0639\u0632\u0644\u060c \u0648\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0648\u0645\u064a\u0636 \u0627\u0644\u062a\u0644\u0648\u062b\u064a\u060c \u0648\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629. \u064a\u0633\u062a\u062e\u062f\u0645 \u0628\u0634\u0643\u0644 \u0623\u0633\u0627\u0633\u064a \u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u062c\u0647\u062f\u060c \u0648\u0642\u064a\u0627\u0633 \u0627\u0644\u0637\u0627\u0642\u0629\u060c \u0648\u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0628\u0627\u0644\u062a\u0631\u062d\u064a\u0644\u060c \u0648\u0645\u0631\u0627\u0642\u0628\u0629 \u0627\u0644\u0639\u0632\u0644 \u0641\u064a \u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u062a\u0648\u0633\u0637 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0628\u062c\u0647\u062f 10 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a\u060c \u0648\u064a\u0637\u0628\u0642 \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0641\u064a \u0645\u0634\u0627\u0631\u064a\u0639 \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629\u060c \u0648\u0627\u0644\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u0641\u0631\u0639\u064a\u0629 \u0627\u0644\u0645\u0639\u0628\u0623\u0629\u060c \u0648\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u062a\u0628\u062f\u064a\u0644.<\/p>\n\n\n\n

II. Key Product Features<\/h2>\n\n\n\n

\u0627\u0644\u0639\u0632\u0644 \u0648\u0627\u0644\u0623\u062f\u0627\u0621 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a<\/h3>\n\n\n\n

State Grid Standard Insulation Design: The unit is formed via vacuum casting with epoxy resin, ensuring a void-free interior. Insulation performance fully complies with State Grid technical specifications, capable of withstanding 12kV system operating voltage as well as power-frequency and impulse withstand voltage tests. Partial discharge is \u226410pC, ensuring no risk of insulation aging during long-term operation.<\/p>\n\n\n\n

Wide Voltage Ratio Compatibility: Supports standard voltage ratios (e.g., 10\/0.1kV, 10\/0.1\/0.1kV). Metering accuracy reaches Class 0.2S, and protection classes can be customized to 3P or 6P, meeting the high-precision requirements for metering and protection in State Grid projects.<\/p>\n\n\n\n

High Pollution-Flashover Resistance: The high-voltage side features a multi-layer shed insulation structure with a long creepage distance, offering excellent resistance to pollution flashover. It is suitable for the polluted environments often encountered in State Grid projects, minimizing the risk of surface flashover.<\/p>\n\n\n\n

Low-Loss, High-Reliability Design: The core is constructed from high-quality stacked silicon steel sheets, and windings use enameled copper wire. This ensures low operating losses and minimal heat generation. The unit offers stable performance and can withstand system switching overvoltages and lightning impulse overvoltages.<\/p>\n\n\n\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0648\u0627\u0644\u062a\u0631\u0643\u064a\u0628\u064a\u0629<\/h3>\n\n\n\n

\u0647\u064a\u0643\u0644 \u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a: \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0648\u0645\u0648\u0627\u0642\u0639 \u0641\u062a\u062d\u0627\u062a \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u062a\u062a\u0648\u0627\u0641\u0642 \u062a\u0645\u0627\u0645\u064b\u0627 \u0645\u0639 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u062a\u0635\u0645\u064a\u0645 \u0634\u0628\u0643\u0629 \u0627\u0644\u062f\u0648\u0644\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629. \u064a\u0633\u0645\u062d \u0628\u0627\u0644\u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u0645\u0628\u0627\u0634\u0631 \u0644\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a\u0629 \u0648\u0647\u0648 \u0645\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631. switchgear <\/a>\u0627\u0644\u062a\u0631\u0643\u064a\u0628\u0627\u062a\u060c \u0645\u062b\u0644 \u0633\u0644\u0633\u0644\u0629 KYN28. \u2022 \u0647\u064a\u0643\u0644 \u0645\u063a\u0644\u0642 \u0628\u0627\u0644\u0643\u0627\u0645\u0644 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062c\u0627\u0641: \u0645\u0635\u0628\u0648\u0628 \u0628\u0634\u0643\u0644 \u0645\u062a\u0643\u0627\u0645\u0644\u060c \u0628\u062f\u0648\u0646 \u0623\u062c\u0632\u0627\u0621 \u0645\u0643\u0634\u0648\u0641\u0629 \u0645\u0648\u0635\u0644\u0629\u061b \u064a\u062a\u0645\u064a\u0632 \u0628\u062a\u0635\u0646\u064a\u0641 \u062d\u0645\u0627\u064a\u0629 IP20 \u0648\u062a\u0635\u0645\u064a\u0645 \u062e\u0627\u0644\u064d \u0645\u0646 \u0627\u0644\u0632\u064a\u062a \u064a\u0642\u0636\u064a \u0639\u0644\u0649 \u0645\u062e\u0627\u0637\u0631 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u0645\u0645\u0627 \u064a\u062c\u0639\u0644\u0647 \u0645\u0646\u0627\u0633\u0628\u064b\u0627 \u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u062f\u0627\u062e\u0644\u064a\u0629 \u0627\u0644\u062e\u0627\u0644\u064a\u0629 \u0645\u0646 \u0627\u0644\u0632\u064a\u062a.<\/p>\n\n\n\n

Clearly marked terminals: Secondary terminals feature transparent protective covers and clear labeling for convenient wiring; the design prevents miswiring and short circuits, with a layout that complies with State Grid specifications for secondary circuit wiring.<\/p>\n\n\n\n

Flexible installation: The metal base features standard mounting holes for secure bolt-down installation; designed for horizontal mounting within indoor cabinets, ensuring stability and excellent vibration resistance.<\/p>\n\n\n\n

Operational and maintenance characteristics<\/h3>\n\n\n\n

Maintenance-free operation: The dry-type, oil-free structure eliminates leakage and fire risks; the epoxy resin casting offers high mechanical strength, impact resistance, and aging resistance, ensuring maintenance-free long-term operation and reduced O&M costs in line with State Grid requirements for high reliability and minimal maintenance.<\/p>\n\n\n\n

Wide operating temperature range: Operates in ambient temperatures from -30\u00b0C to +70\u00b0C; the epoxy resin maintains stable performance at temperature extremes without risk of embrittlement or deformation, making it suitable for the diverse climatic conditions of State Grid projects.<\/p>\n\n\n\n

Traceable quality system: Manufacturing processes comply with State Grid supplier quality control requirements; complete factory acceptance test and type test reports are available, ensuring performance traceability and alignment with State Grid project acceptance standards. <\/p>\n\n\n\n

III. Technical Parameters (Typical Specifications)<\/h2>\n\n\n\n
\u0641\u0626\u0629 \u0627\u0644\u0645\u0639\u0644\u0645\u0629<\/td>\u0645\u0639\u0627\u0645\u0644<\/td>\u0645\u0648\u0627\u0635\u0641\u0627\u062a<\/td><\/tr>
\u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629<\/td>\u062c\u0647\u062f \u0627\u0644\u0646\u0638\u0627\u0645<\/td>10 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a \u062a\u064a\u0627\u0631 \u0645\u062a\u0631\u062f\u062f (Um=12 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a)<\/td><\/tr>
<\/td>| \u0627\u0644\u062a\u0631\u062f\u062f \u0627\u0644\u0645\u0642\u0646\u0646<\/td>50 \u0647\u0631\u062a\u0632<\/td><\/tr>
<\/td>| \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0627\u0644\u0645\u0642\u0646\u0646<\/td>10 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a<\/td><\/tr>
<\/td>| \u062c\u0647\u062f \u062b\u0627\u0646\u0648\u064a \u0645\u0642\u0646\u0646<\/td>100 \u0641\u0648\u0644\u062a (\u0642\u064a\u0627\u0633 \/ \u062d\u0645\u0627\u064a\u0629)\u061b 100\/\u221a3 \u0641\u0648\u0644\u062a (\u0645\u0631\u0627\u0642\u0628\u0629 \u0627\u0644\u0639\u0632\u0644\u060c \u0646\u0648\u0639 JDZQN)<\/td><\/tr>
<\/td>| \u0641\u0626\u0629 \u062f\u0642\u0629 \u0627\u0644\u0642\u064a\u0627\u0633<\/td>0.2 \/ 0.5 \/ 1 (\u0645\u062a\u0648\u0641\u0631 \u0641\u0626\u0629 0.2S)<\/td><\/tr>
<\/td>| \u0641\u0626\u0629 \u062f\u0642\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629<\/td>3P \/ 6P<\/td><\/tr>
<\/td>| \u062c\u0647\u062f \u062a\u062d\u0645\u0644 \u0627\u0644\u062a\u0631\u062f\u062f \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a (\u0637\u0631\u0641 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0639\u0627\u0644\u064a)<\/td>42 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a \/ 1 \u062f\u0642\u064a\u0642\u0629\u060c \u0644\u0627 \u0627\u0646\u0647\u064a\u0627\u0631<\/td><\/tr>
<\/td>\u062c\u0647\u062f \u062a\u062d\u0645\u0644 \u0627\u0644\u0646\u0628\u0636\u0627\u062a (\u0630\u0631\u0648\u0629)<\/td>75 \u0643\u064a\u0644\u0648\u0641\u0648\u0644\u062a\u060c \u0644\u0627 \u0627\u0646\u0647\u064a\u0627\u0631<\/td><\/tr>
<\/td>| \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u062c\u0632\u0626\u064a<\/td>\u226410 \u0628\u064a\u0643\u0648 \u0643\u0648\u0644\u0648\u0645<\/td><\/tr>
<\/td>| \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0639\u0632\u0644 (\u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0639\u0627\u0644\u064a \u0625\u0644\u0649 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636 \u0648\u0627\u0644\u0623\u0631\u0636\u064a)<\/td>\u22651000 \u0645\u064a\u062c\u0627 \u0623\u0648\u0645<\/td><\/tr>
Structural & Material Parameters<\/td>\u0648\u0633\u0637 \u0639\u0627\u0632\u0644<\/td>\u0635\u0628 \u0631\u0627\u062a\u0646\u062c \u0627\u0644\u0625\u064a\u0628\u0648\u0643\u0633\u064a \u0628\u0627\u0644\u0643\u0627\u0645\u0644<\/td><\/tr>
<\/td>| \u0641\u0626\u0629 \u0627\u0644\u062d\u0645\u0627\u064a\u0629<\/td>IP20<\/td><\/tr>
<\/td>\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\u062a\u0631\u0643\u064a\u0628 \u062f\u0627\u062e\u0644\u064a \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0645\u0648\u062f\u064a \u0627\u0644\u0645\u062b\u0628\u062a \u0628\u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631 (\u0646\u0645\u0637 \u062b\u0642\u0648\u0628 \u0642\u064a\u0627\u0633\u064a SGCC)<\/td><\/tr>
<\/td>| \u0627\u0644\u0641\u0626\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u0644\u0639\u0632\u0644<\/td>\u0627\u0644\u0641\u0626\u0629 \u0628 (130 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)<\/td><\/tr>
\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0628\u064a\u0626\u064a\u0629<\/td>\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u062a\u0637\u0628\u064a\u0642<\/td>\u22642000 \u0645\u062a\u0631 (\u062a\u062e\u0635\u064a\u0635 \u0644\u0644\u0627\u0631\u062a\u0641\u0627\u0639\u0627\u062a \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0645\u062a\u0627\u062d)<\/td><\/tr>
<\/td>| \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u062d\u064a\u0637\u0629<\/td>-30 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +70 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><\/tr>
<\/td>\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0628\u064a\u0626\u0629 \u0627\u0644\u062a\u062e\u0632\u064a\u0646\u064a\u0629<\/td>-\u0664\u0660 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +\u0668\u0665 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td><\/tr>
<\/td>| \u0627\u0644\u0631\u0637\u0648\u0628\u0629 \u0627\u0644\u0646\u0633\u0628\u064a\u0629<\/td>\u2264\u0669\u0665\u066a (\u0628\u062f\u0648\u0646 \u062a\u0643\u062b\u0641)<\/td><\/tr>
\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0645\u0637\u0628\u0642\u0629<\/td>\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0648\u0637\u0646\u064a\u0629 \/ \u0645\u0648\u0627\u0635\u0641\u0627\u062a SGCC<\/td>\u0645\u062d\u0648\u0644\u0627\u062a \u0627\u0644\u062c\u0647\u062f GB 1207\u061b \u0633\u0644\u0633\u0644\u0629 GB\/T 20840\u061b \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629 \u0644\u0644\u0645\u0639\u062f\u0627\u062a \u0627\u0644\u0645\u0648\u062d\u062f\u0629 \u0644\u0634\u0631\u0643\u0629 SGCC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

IV. Scope of Application<\/h2>\n\n\n\n

Applicable Voltage Level: 10kV (Um=12kV) indoor AC power systems; compatible with State Grid standardized power distribution projects. 2. Typical Application Scenarios:
\uffee Voltage measurement, energy metering, and relay protection for State Grid standardized indoor medium-voltage switchgear and box-type substations;
\uffee Voltage monitoring and insulation monitoring for State Grid switching station, distribution station, and distribution transformer area renovation projects;
\uffee 10kV distribution systems in industrial\/mining enterprises, commercial buildings, and industrial parks; compliant with State Grid project acceptance standards;
\uffee Indoor distribution scenarios requiring high resistance to pollution flashover and high reliability; compliant with State Grid project quality control requirements.<\/p>\n\n\n\n

Functions and Uses: Proportionally converts high voltage from the power system into a standard low voltage (100V) to provide voltage signals for metering instruments, protection devices, and control equipment, while achieving electrical isolation between the primary and secondary systems. The JDZQN model can also serve as a voltage signal source for insulation monitoring devices to detect system ground faults, fully meeting State Grid project requirements for metering, protection, and insulation monitoring.<\/p>\n\n\n\n

V. Operating Conditions<\/h2>\n\n\n\n

\u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0639\u0627\u062f\u064a\u0629<\/h3>\n\n\n\n
    \n
  • \u0627\u0644\u0627\u0631\u062a\u0641\u0627\u0639: \u22642000\u0645<\/li>\n\n\n\n
  • Ambient temperature: -30\u2103 to +70\u2103, without drastic temperature fluctuations;<\/li>\n\n\n\n
  • \u0627\u0644\u0631\u0637\u0648\u0628\u0629 \u0627\u0644\u0646\u0633\u0628\u064a\u0629: \u226495% (\u063a\u064a\u0631 \u0645\u062a\u0643\u062b\u0641)\u061b<\/li>\n\n\n\n
  • Environmental conditions: Free from corrosive gases, flammable or explosive media, severe vibration or shock, and significant dust or salt spray;<\/li>\n\n\n\n
  • Installation method: Indoor post-type installation; avoid direct sunlight, rain, and condensation; compatible with installation spaces in State Grid standard switchgear.<\/li>\n<\/ul>\n\n\n\n

    \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u062e\u0627\u0635\u0629 (\u064a\u062a\u0637\u0644\u0628 \u062a\u062e\u0635\u064a\u0635\u064b\u0627)<\/h3>\n\n\n\n
      \n
    • \u0627\u0631\u062a\u0641\u0627\u0639 \u064a\u062a\u062c\u0627\u0648\u0632 2000 \u0645\u062a\u0631\u061b<\/li>\n\n\n\n
    • Ambient temperature outside the -30\u2103 to +70\u2103 range;<\/li>\n\n\n\n
    • Environments with severe pollution, salt spray, or chemical corrosion;<\/li>\n\n\n\n
    • Conditions involving strong vibration or heavy shock;<\/li>\n\n\n\n
    • Scenarios requiring non-standard voltage ratios, accuracy classes, or installation dimensions.<\/li>\n<\/ul>\n\n\n\n

      VI. Installation and Maintenance<\/h2>\n\n\n\n

      \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062a\u062b\u0628\u064a\u062a<\/h3>\n\n\n\n

      Construction Preparation: Inspect the external appearance of the voltage transformer; ensure the cast body is free of cracks, air bubbles, and damage, terminal markings are clear, and all accessories are present. Verify that the model, specifications, voltage ratio, and accuracy class align with the State Grid project design requirements, and confirm the product holds the necessary qualification documents as a qualified State Grid supplier.<\/p>\n\n\n\n

      Installation and Securing: Position the voltage transformer at the designated location within the switchgear cabinet. Secure it using bolts through the standard bottom mounting holes, ensuring a firm installation free of looseness or misalignment. The mounting surface must be level to avoid uneven stress or tilting.<\/p>\n\n\n\n

      High-Voltage Side Wiring: Connect high-voltage terminals according to State Grid project wiring specifications. Ensure connections are tight and provide good contact. Maintain sufficient safety clearance between high-voltage leads and grounded parts or other live components to prevent discharge.<\/p>\n\n\n\n

      Low-Voltage Side Wiring: Connect low-voltage terminals according to markings. Wire the metering, protection, and insulation monitoring circuits separately to ensure correctness. Strictly prohibit short circuits in secondary circuits; ensure reliable grounding (single-point grounding) to prevent overvoltage. Wiring must comply with State Grid secondary circuit specifications.<\/p>\n\n\n\n

      Insulation Inspection: After installation, test the voltage transformer’s insulation resistance (high-voltage to low-voltage\/ground, and low-voltage to ground) to ensure insulation performance meets requirements. Verify correct secondary circuit wiring, ensuring there are no short circuits or open circuits.<\/p>\n\n\n\n

      Maintenance Points<\/h3>\n\n\n\n

      Regularly inspect the external appearance of the voltage transformer. Ensure the cast body is free of cracks, damage, and discharge marks; high-voltage terminals are free of looseness and oxidation; and shed surfaces are free of accumulated contamination.<\/p>\n\n\n\n

      Regularly inspect high-voltage and low-voltage wiring. Ensure connections are tight and show no signs of overheating or discoloration; verify reliable grounding of low-voltage circuits and the absence of short-circuit or open-circuit risks.<\/p>\n\n\n\n

      Periodically test insulation resistance and voltage ratio to ensure metering and protection accuracy meet State Grid project requirements; simultaneously verify the proper functioning of insulation monitoring features.<\/p>\n\n\n\n

      Clean dust and dirt from the voltage transformer surface; prevent the adhesion of oil or corrosive substances, and keep the equipment dry and clean.<\/p>\n\n\n\n

      If abnormalities such as cracks, discharge, overheating, or voltage ratio deviations occur in the voltage transformer, the power supply must be cut off immediately for inspection, and the equipment replaced if necessary; operation with faults is strictly prohibited, and the project management team must be notified.<\/p>\n\n\n\n

      VII. Precautions<\/h2>\n\n\n\n
        \n
      1. Short-circuiting the secondary winding is strictly prohibited; a short circuit in the secondary circuit during operation generates high currents, endangering both equipment and personnel safety. During maintenance, the secondary circuit must be reliably open-circuited and grounded.<\/li>\n\n\n\n
      2. During installation, avoid knocking or striking the voltage transformer’s cast body and the sheds of the high-voltage terminal to prevent epoxy resin cracking or insulation damage, which could compromise the equipment’s insulation performance and resistance to pollution flashover.<\/li>\n\n\n\n
      3. High-voltage side wiring must utilize dedicated insulated leads, ensuring sufficient safety clearance from grounded parts and other live components to prevent phase-to-phase or phase-to-ground discharge; wiring must comply with State Grid project technical specifications.<\/li>\n\n\n\n
      4. Equipment grounding must be reliable; the grounding terminal on the base must be securely connected to the cabinet’s grounding busbar to ensure effective grounding in compliance with State Grid project grounding standards.<\/li>\n\n\n\n
      5. Store in a dry, ventilated, and cool environment, avoiding direct sunlight, high temperatures, humidity, and crushing forces to prevent aging or deformation of the cast body; implement moisture-proof and anti-corrosion measures during storage.<\/li>\n\n\n\n
      6. Installation, commissioning, and maintenance must be performed by qualified electrical professionals in strict accordance with electrical safety operating procedures and State Grid project construction specifications. <\/li>\n<\/ol>\n\n\n\n

        VIII. Standard Configuration List<\/h2>\n\n\n\n
        \u0644\u0627.<\/th>\u0627\u0633\u0645<\/th>\u0627\u0644\u063a\u0631\u0636<\/th><\/tr>
        1<\/td>JDZ9-10 \/ JDZQN-10(State Grid Type)Voltage Transformer<\/td>Core Unit, providingVoltageTransformation \/ Isolation Signal Acquisition, Standard<\/td><\/tr>
        2<\/td>Mounting Bolts \/ Washers<\/td>forVoltage TransformerFixed Installation, Standard<\/td><\/tr>
        3<\/td>Secondary TerminalTransparent Protective Cover<\/td>Protection Terminal, PreventingIncorrect Connection \/ Short Circuit<\/td><\/tr>
        4<\/td>\u062f\u0644\u064a\u0644 \u0627\u0644\u0645\u0646\u062a\u062c<\/td>Installation \/ Operation MaintenanceGuide Document, Installation<\/td><\/tr>
        5<\/td>Factory Test Report<\/td>Quality PerformanceCertification Document, Test Data<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

        IX. Applicable Standards and Certifications<\/h2>\n\n\n\n

        The product complies with national standards such as GB 1207 “Voltage Transformers,” GB\/T 20840.1 “Instrument Transformers \u2013 Part 1: General Requirements,” and GB\/T 20840.3 “Instrument Transformers \u2013 Part 3: Additional Requirements for Inductive Voltage Transformers.” It also meets the technical specifications for standardized equipment set by the State Grid Corporation of China (SGCC). The manufacturer holds qualified supplier status with the State Grid, and the product’s performance meets the operational requirements of 10kV power systems in State Grid projects.<\/p>\n\n\n\n

        \"\u0645\u062d\u0648\u0644
        JDZ9-10 \/ JDZQN-10() source image 2<\/figcaption><\/figure>\n\n
        \n\n\t\t\n
          \n\t\t\t <\/ul>\n <\/div>","protected":false},"excerpt":{"rendered":"

          I. Product Overview The JDZ9-10 \/ JDZQN-10 (State Grid Standard) voltage transformer is a fully enclosed, epoxy resin-cast, dry-type voltage […]<\/p>\n","protected":false},"featured_media":2500,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_category":[30],"class_list":["post-1617","products","type-products","status-publish","has-post-thumbnail","hentry","product_category-instrument-transformer-series"],"acf":{"products_imagines":[2500],"short_describe":"

          The JDZ9-10 \/ JDZQN-10 (State Grid Standard) voltage transformer is a fully enclosed, epoxy resin-cast, dry-type voltage transformer designed specifically for 10kV (Um=12kV) indoor AC power systems.<\/p>","pdf_file":"","related_products":{"products":""},"technical_parameter":"","outline_and_installation_dimension":""},"_links":{"self":[{"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/products\/1617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/types\/products"}],"acf:attachment":[{"embeddable":true,"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/media\/2500"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/media\/2500"}],"wp:attachment":[{"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/media?parent=1617"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/yieou.com\/ar\/wp-json\/wp\/v2\/product_category?post=1617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}