Voltage Transformer (for Ring Network Cabinet)

Product Functions

This voltage transformer performs two critical functions within switchgear. Accurately transforms the primary system voltage down to a standard 100V secondary signal for connection to voltage meters, protection relays, and energy measurement devices. Supplies a reliable 220V AC power output directly from the high-voltage line, serving as the operating power supply for switchgear mechanisms, eliminating the need for a separate external control power source.

Applicable Environment

This product is engineered for indoor electrical distribution environments. Its primary application is installation within medium-voltage (6kV or 10kV) metal-enclosed switchgear, particularly Ring Main Units (RMUs) and compact secondary distribution cabinets. It is ideal for urban power grids, industrial plants, commercial buildings, and infrastructure projects where space optimization and integrated functionality are key. Its epoxy resin construction ensures suitability for the stable, controlled environment of standard switchgear compartments.

Product Highlights

◆Dual-Output Design: Uniquely integrates measurement and auxiliary power functions in one compact unit, reducing component count and saving valuable cabinet space.

◆Enhanced Protection & Safety: The primary winding is safeguarded by an internal fuse, providing reliable protection against fault currents and enhancing overall system safety.

◆Robust Construction: Manufactured with high-quality epoxy resin casting, offering excellent insulation, mechanical strength, moisture resistance, and long-term reliability in confined spaces.

◆Simplified System Integration: Eliminates the need for a separate control power transformer (CPT), streamlining cabinet design, wiring, and maintenance.

◆Customizable: Available in standard models (JSZV18-6R, JSZV18-10R) with options for negotiation on special technical requirements.