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JDZ9-10


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JDZ9-10 Voltage Transformer

The JDZ9-10 is a single-phase, epoxy resin cast voltage transformer designed for 10kV, 50/60Hz indoor AC power systems. It is primarily used for voltage measurement, energy metering, and relay protection in medium-voltage switchgear, metering cabinets, and distribution panels.
Built with vacuum-cast epoxy resin insulation, this transformer features a fully enclosed, maintenance-free structure that delivers excellent moisture, pollution, and impact resistance, making it ideal for harsh indoor electrical environments.

Model:
JDZ9-10

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Product Description

Model Code Explanation

Code	Meaning
J	Voltage Transformer
D	Single-phase
Z	Epoxy Resin Cast Insulation
X	With residual voltage winding (optional)
F	Separate metering & monitoring windings (optional)
9	Design serial number
10	Rated voltage level (10kV)
(G)	Structure code (optional)

Key Features

✅ High-Precision Performance

Metering windings up to 0.2 accuracy class and protection windings up to 3P class, meeting both commercial metering and system protection requirements.

✅ Reliable Cast Insulation

Vacuum epoxy resin casting eliminates partial discharge, providing superior dielectric strength and long-term stability in humid or contaminated conditions.

✅ Compact & Easy Installation

Designed for direct mounting in standard 10kV indoor switchgear (e.g., KYN28, XGN series), with a space-saving footprint to optimize cabinet layout.

✅ Low Maintenance Design

Sealed, fully enclosed construction prevents dust and moisture ingress, eliminating the need for routine maintenance in normal service conditions.

✅ Customization Available

Optional residual voltage windings, dual metering/protection windings, and special ratings to match specific project requirements.

Typical Technical Specifications

Parameter	Specification
Rated Primary Voltage	10kV
Rated Secondary Voltage	100V / 100/√3V (as per system connection)
Rated Frequency	50/60Hz
Insulation Level	12/42/75kV (Power-frequency/lightning impulse withstand)
Accuracy Class	Metering: 0.2 / 0.5; Protection: 3P / 6P
Rated Burden	15VA / 30VA / 50VA (customizable)
Application	Indoor, non-effectively earthed 10kV systems
Standard Compliance	IEC 61869-3 / GB/T 20840.3