Power Frequency Step-Up Power Supply Test System

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Power Frequency Step-Up Power Supply Test System

A 250 kV step-up system consisting of an HMYDJ-50 kVA/250 kV oil-immersed test transformer and its HM-ZTC-50 kVA fully automatic control console. High-Voltage Current 200 mA Low-Voltage 200 V Low-Voltage Current 50 A Measurement Voltage 100 V Measurement Current 20 mA

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Description

Technical Parameters

Product Overview

A 250 kV step-up system consisting of an HMYDJ-50 kVA/250 kV oil-immersed test transformer and its HM-ZTC-50 kVA fully automatic control console.

console Features

10-inch large LCD screen with fully Chinese-language touchscreen operation; clear and intuitive readings.
Fully Automatic Test Mode: Supports multi-stage automatic voltage ramp-up (with configurable two- or three-stage test voltages and times), automatic timing, and automatic voltage ramp-down to zero.
Manual Mode: Step-by-step voltage increase and decrease, suitable for special testing requirements.
Comprehensive Protection Functions: Zero-point protection, overvoltage protection (alarm voltage), overcurrent protection (low-voltage current/leakage current), and emergency stop function.
Data Management: Supports testing data queries and export to Excel spreadsheets.
Hardware and Software Interference Resistance: Stable performance and strong resistance to interference.

whole Parameters

Model HMYDJ-50kVA/250kV
Rated Capacity 50kVA
High-Voltage 0–250kV
High-Voltage Current 0–0.2A
Low-Voltage 0–430V
Low-Voltage Current 0–116.3 A
Instrument Voltage 0–100 V
Power Input AC 380 V ±10%, 50 Hz ±2 Hz
Operating Ambient Temperature 0–50 °C (Control Console: –10–40 °C)
Relative Humidity ≤85% RH
Altitude <1000 m

Products FAQs

Q: What is the main difference between this unit and a standard 50kVA/100kV unit?

A: The main differences are the higher output voltage rating (250kV) and the insulation cylinder design.

Q: The overall accuracy is 4%. Why is it lower than that of lower-voltage models?

A: The 250kV class falls under high-voltage testing equipment. Measurements on the high-voltage side are more susceptible to factors such as distributed parameters and environmental interference; an overall accuracy of 4% aligns with the industry standard for high-voltage testing equipment.

Q: What is the product warranty policy?

A: Starting from the date of shipment, we offer a replacement for non-human-caused defects within 1 month, free repairs within 1 year, and paid lifetime repair services beyond 1 year.