Huazheng HZJZ Oil Type Testing Transformer oil immersed hv test transformer ac dc hipot tester High Voltage AC Hipot Test System-ac hipot tester-Huazheng Electric Manufacturing (Baoding) Co., Ltd-

I.Introduction

The test transformer calls the booster, it is the basic test equipment used by the power station, supplying and distributing the electrical power system and the scientific research unit. Which used in the insulated intension test on all kinds of electrical products, electrical equipments and insulated materials, testing the insulated level of products, discovering the insulated objection of quizzee, scaling the capacity burdened voltage.

II.Structure

They make up of the high quality cold rolling　silicon steel piece by HZJ alternating current test transformer, HZJZ alternating and direct current amphibious light high voltage test transformer. The winding is the　concentric pagoda and multilayer cylindrical type, low-voltage　winding in inner, high-voltage winding in outside; Outer cover is portable which has characteristics, such as volume smallness, weight light, the shape prettiness and move convenience and so on.

III.Principle Of Work

Connecting the control unit (it is the supplementary equipment of test transformer, detailed see the explaining book) with work frequency 220V (above 10KVA with 380V), adjusting 0-220V/380V voltage input to HZJ (HZJZ) test transformer primary winding through autotransformer. According to the principle of electromagnetic influence, the secondary (high voltage) winding may gain the same multiple voltage value than the primary winding with the circle rated that is the high frequency voltage of work frequency. It can obtain the direct current high frequency voltage after commuted by high frequency voltage silicon stack and filtrated by capacitor, among whose amplitude value is the 2 times value of work frequency.

This series product divides into three kinds: the alternating current is named YDJ, the alternating and direct current is named as HZJZ, meanwhile, may connecting HZJ, HZJZ with 200V switch to form series excitation transformer.

IV.Technical Parameters

1．Technical parameters of HZJ series alternating current test transformers.

Model	Capacity（KVA）	High Frequency Voltage Output Voltage （KV）	High Frequency Voltage Output Current（mA)	Low Frequency Voltage input		Ratio	Tempera- ture(℃) raised/ 30 minute
Model	Capacity（KVA）	High Frequency Voltage Output Voltage （KV）	High Frequency Voltage Output Current（mA)	V	A	Ratio	Tempera- ture(℃) raised/ 30 minute
HZJ-1.5	1.5	50	30	200	7.5	500	10
HZJ -3	3	50	60	200	15	500	10
HZJ -5	5	50	100	200	25	500	10
HZJ -10	10	50	200	220/380	50/26	500	10
HZJ -20	20	50	400	380	53	500	10
HZJ -30	30	50	600	380	79	500	10
HZJ -40	40	50	800	380	105	500	10
HZJ -50	50	50	1000	380	132	500	10
HZJ -5	5	100	50	200	25	1000	10
HZJ -10	10	100	100	200/380	50/26	1000	10
HZJ -20	20	100	200	380	53	1000	10
HZJ -30	30	100	300	380	79	1000	10
HZJ -40	40	10	400	380	105	1000	10
HZJ -50	50	100	500	380	132	1000	10
HZJ -100	100	100	100	500	263	1000	10
HZJ -150	150	15	10	400	375	1000	10
HZJ -200	200	100	2000	500	400	1000	10
HZJ -250	250	100	2500	380	500	1000	10
HZJ -20	20	150	133	380	53	1500	10
HZJ -30	30	150	200	380	79	1500	10
HZJ -50	50	150	333	380	132	1500	10
HZJ -100	100	150	666	500	263	1500	10
HZJ -150	150	150	1000	500	300	1500	10
HZJ -200	200	150	1333	500	400	1500	10
HZJ -250	250	150	1666	380	500	1500	10
HZJ -30	30	200	150	380	79	2000	10
HZJ -50	50	200	250	380	132	2000	10
HZJ -100	100	200	500	380	263	2000	10
HZJ -150	150	200	750	500	300	2000	10
HZJ -200	200	200	1000	500	400	2000	10
HZJ -250	250	200	1250	500	500	2500	10
HZJ -30	30	250	120	380	79	2500	10
HZJ -50	50	250	200	380	132	2500	10
HZJ -100	100	250	400	380	263	2500	10
HZJ -150	150	250	600	500	300	2500	10
HZJ -200	200	250	800	500	400	2500	10
HZJ -250	250	250	1000	500	500	2500	10

Note: 100KVA and the above input voltage may enhance to 3000V or　proposed by the users.

2. Technical parameters of HZJZ alternating and direct current test transformers.

Model	Capacity（KVA）	High Frequency Voltage Output （KV） AC DC		High Frequency Voltage Current （Ma） AC DC		Low pressure input		Ratio	Tempera- ture(℃) raised/ 30 minute
Model	Capacity（KVA）	High Frequency Voltage Output （KV） AC DC		High Frequency Voltage Current （Ma） AC DC		V	A	Ratio	Tempera- ture(℃) raised/ 30 minute
HZJZ -1.5	1.5	50	70	30	15	200	7.5	500	10
HZJZ-3	3	50	70	60	15	200	15	500	10
HZJZ -5	5	50	70	100	15	200/380	25	500	10
HZJZ-10	10	50	70	200	100	380	50/26	500	10
HZJZ -20	20	50	70	400	100	380	53	500	10
HZJZ-30	30	50	70	600	100	380	79	500	10
HZJZ -40	40	50	70	800	100	380	105	500	10
HZJZ-50	50	50	70	1000	100	380	132	500	10
HZJZ -5	5	100	140	100	50	200/380	25	1000	10
HZJZ -10	10	100	140	200	100	380	50/26	1000	10
HZJZ-20	20	100	140	300	100	380	53	1000	10
HZJZ -30	30	100	140	400	100	380	79	1000	10
HZJZ -40	40	100	140	600	100	380	105	1000	10
HZJZ -50	50	100	140	1000	100	380	132	1000	10

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