High Voltage Test Equipment Manufacturers | Reliable Testing Solutions

Top Test Transformer Manufacturers and Suppliers in China

Test Transformer

Searching for high-grade test transformers for your industrial requirements? DEMIKS should be your first stop. We are one of the premier manufacturers and suppliers in China and as such we offer a diverse selection of dependable and efficient test transformers for different uses. Our dedicated professionals make certain that our products comply with rigorous industry benchmarks of quality and efficiency. Reach out to us today and find out how DEMIKS test transformers can improve your projects.

Oil-immersed test transformers series

Changes on the Product: The YDJ(G) and TDM(G) test transformers have been remodeled as red to adhere to national and industrial standards for dielectric strength testing. Thus, they undergo dielectric testing both on voltage and arcs.
Light Weight Convenience: Their compact construction makes the transformers easily portable. Their lightweight and small dimensions ease use flexibility for different purposes
Excellent Efficiency: Unlike traditional oil-immersed transformers, these transformers maintain greater stability, improved dielectric strength, moisture resistance, and lower magnetic flux leakage.
Wide Range of Uses: For use in power systems, industrial enterprises, and research institutions.

Type	Capacity	HV voltage	HV current	Low voltage input		Ratio(HV meter)	Temperature rise (30 minutes)
	(KVA)	（KV）	（mA)）	voltage(V)	current(A)
YDJ（G）1.5/50	1.5	50	30	200	7.5	500	10
YDJ（G）3/50	3	50	60	200	15	500	10
YDJ（G）5/50	5	50	100	200	25	500	10
YDJ（G）10/50	10	50	200	200	50	500	10
YDJ（G）20/50	20	50	400	400	50	500	10
YDJ（G）30/50	30	50	600	400	75	500	10
YDJ（G）50/50	50	50	1000	400	125	500	10
YDJ（G）5/100	5	100	50	200	25	1000	10
YDJ（G）10/100	10	100	100	200	50	1000	10
YDJ（G）15/100	15	100	150	400	37.5	1000	10
YDJ（G）20/100	20	100	200	400	50	1000	10
YDJ（G）30/100	30	100	300	400	75	1000	10
YDJ（G）50/100	50	100	500	400	125	1000	10
YDJ（G）20/150	20	150	133	400	50	1500	10
YDJ（G）30/150	30	150	200	400	75	1500	10
YDJ（G）50/150	50	150	333	400	125	1500	10
YDJ（G）100/150	100	150	667	400	250	1500	10
YDJ（G）50/200	50	200	250	400	125	1000	10
YDJ（G）100/200	100	200	500	400	250	2000	10
YDJ（G）150/200	150	200	750	400	395	2000	10
YDJ（G）200/200	200	200	1000	400	375	2000	10
YDJ（G）300/200	300	200	1500	400	750	2000	10
YDJ（G）50/300	50	300	170	400	125	3000	10
YDJ（G）100/300	100	300	333	400	250	3000	10
YDJ（G）150/300	150	300	500	400	375	3000	10
YDJ（G）200/300	200	300	667	400	500	3000	10
YDJ（G）300/300	300	300	3000	400	750	3000	10

Type	Capacity	HV Voltage		HV Current		Low voltage input		Ratio	Temperature rise
		（KV）		（mA）
	(KVA)	AC	DC	AC	DC	voltage	current	HV/ meter	30 minutes
						(V）	（A）
TDM（G）1.5/50	1.5	50	70	30	15	200	7.5	500	10
TDM（G）5/50	5	50	70	100	15	200	25	500	10
TDM（G）10/50	10	50	70	200	50	200	50	500	10
TDM（G）15/15	15	15	21	1000	900	400	37.5	150	10
TDM（G）20/50	20	50	70	400	100	400	50	500	10
TDM（G）30/50	30	50	70	600	100	400	75	500	10
TDM（G）40/50	40	50	70	800	105	400	100	500	10
TDM（G）50/50	50	50	70	1000	100	400	125	500	10
TDM（G）10/100	10	100	140	100	50	200	50	1000	10
TDM（G）15/100	15	100	140	200	100	400	37.5	1000	10
TDM（G）20/100	20	100	140	200	100	400	50	1000	10
TDM（G）30/100	30	100	140	300	100	400	75	1000	10
TDM（G）40/100	40	100	140	400	100	400	100	1000	10
TDM（G）50/100	50	100	140	500	100	400	125	1000	10
TDM（G）20/150	20	150	210	133	100	400	50	1500	10
TDM（G）30/150	30	150	210	200	100	400	75	1500	10
TDM（G）40/150	40	150	210	267	100	400	100	1500	10
TDM（G）50/150	50	150	210	333	100	400	125	1500	10
TDM（G）100/150	100	150	210	667	150	400	250	1500	10

Dry Type Tested Transformer

Innovation & Materials Which Are Of High Quality: Employs modern foreign technologies, epoxy vacuum casting, and CD type iron core which enhances functioning.
Compact & Lightweight: Outshines oil immersed transformers as it is more sleek and modern, portable, small, and light.
Enhanced Performance: Provides improved moisture resistance, better dielectric strength, improved performance stability, and lowers magnetic flux leakage.
Versatile Application: Oil immersed transformers are bulky, therefore this product is ideal for insulation testing, DC withstand voltage tests, and leakage current tests.

Dry Type Tested Transformer -1

Dry Type Tested Transformer -2

Dry Type Tested Transformer -3

Type	Capacity	Input voltage(V)	Output voltage(kV)	Output current(mA)	Weight
	(kVA)
GYD-5/50	5	200	50	100	30
GYD-10/50	10	200	50	200	40
GYD-15/50	15	400	50	300	50
GYD-20/50	20	400	50	400	55
GYD-25/50	25	400	50	500	60
GYD-30/50	30	400	50	600	65
GYD-15/75	15	220	75	200	55
GYD-5/100	5	400	100	50	60
GYD-10/100	10	400	100	100	65
GYD-15/100	15	400	100	150	70
GYD-20/100	20	220	100	200	75
GYD-25/100	25	400	100	250	80
GYD-15/120	15	400	120	125	85
GYD-20/120	20	400	120	167	90
GYD-25/120	25	400	120	208	95
GYD-30/120	30	400	120	250	100
Cascade transformer 3/100	3kVA/50kV in series with 60kVA/50kV
Cascade transformer	3kVA/75kV in series with 60kVA/75kV
3/150

Transformer Testing: Circuit Voltage and Proper Operation

In this blog, we will discuss the proper methods, tools, and safety precautions when testing transformers so both professionals and the interested can gain valuable knowledge.