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Top Standard Voltage Transformer Manufacturers and Suppliers in China

Standard Voltage Transformer

Searching for exceptional standard voltage transformers in China? Look no further than DEMIKS/Standard Voltage Transformer. One of the top manufacturers and suppliers in the industry, we strive to offer products that are dependable and efficient as per your requirements for voltage transformation. Rely upon our expertise and quality standards to power your operations. Get in touch with us today for detailed information regarding our extensive selection of transformers.

DDL-5000-05

Purpose: The DDL-5000-05 series Standard Current Transformer is designed for current transformer calibration during the error testing phase, in accordance with ZBY097-1994 standards.
Structure: The device includes primary and secondary windings.
Calibration: Allows verification against values provided on the nameplate and self-calibration for 5/5 or 1/1 current ratios.
Mobility: Designed with wheels for effortless relocation.

DDY-1005

Application: The DDY-1005 series Standard Voltage Transformer is used for power measurement with transformers whose voltage rating may go as high as 765kV. It is applicable to High Voltage Power Transformers.
Type: It is a type of instrument transformer that is connected in parallel, also referred to as a potential transformer (PT) or voltage transformer (VT).
Features: Calibrating PTs at 110kV/100V and below Class 0.2 are PT of 110kV and Class 0.05 which has high accuracy and voltage class grade.
Calibration Range: It makes calibration for PTs from 20% to 120% of nominal voltage possible, yielding a unit’s secondary voltage of 100V and permissible secondary load of 0.25VA.

Parameter	Specification
Rated Voltage Ratio	110 kV / 100V, 110/√3 kV / 100/√3
Rated Secondary Capacity	0.2 VA, 0.07 VA, 0.02 VA at Cosφ = 1.0
Accuracy Class	Class 0.05, Class 0.1
Accuracy Performance	- 80%-120% Un: Ratio error < ±0.02%, Phase error < ±0.6'
	- 50% Un: Ratio error < ±0.03%, Phase error < ±0.9'
	- 20% Un: Ratio error < ±0.04%, Phase error < ±1.2'(Actual error ≤ 60-70% of limit values)
Dielectric Withstand	Primary Winding: 1.2 kV AC for 1 min
	Secondary Winding: 2 kV AC to earth for 1 min
Rated Frequency	50 Hz

DDY-S-1002

Application: The DDY-S-1002 series Standard Voltage Transformer is made to cater for testing and measuring high power voltage transformers (transformers over 765 kV).
Type: Parallel-connected voltage instruments transformers also called potential transformers (PT) or voltage transformers (VT) fall under this category.
Features: Exceeds standard requirements pertaining to grade boundaries with high accuracy calibration at class 0.05 and it’s high voltage class 110 kV, which is ideal for PTs of 110kV/100V and below Class 0.2 calibrated PTs.
Calibration Range: Calibrates PTs from 20 % to 120 % with support of a secondary load at 0.25VA with secondary voltage of 100V.

Understanding the Standard Doorbell Transformer Voltage: A Comprehensive Guide

Understand how to select the proper doorbell transformer voltage for safe and efficient performance. This guide covers voltage specifications, compatibility, as well as troubleshooting recommendations.