250kVA Single-Phases Electric Column-Type Voltage Regulator/AVR/Manual/Automatic/Intelligent Control/AC Voltage Regulator

• Customization: Available
• Current Type: AC
• Phase: Single Phase
• Model NO.: WLAB-DU-250KVA
• Frequency Characteristics: Power Frequency
• Usage: DBW, SBW
• Frequency: Industrial Frequency
• Size: Large
• Iron Core Shape: C
• Power Source: Linear Regulated Power Supply
• Application Range: Scientific Research Department
• Brand: Wenlida
• Input Voltage: 220~380V, Can Be Customized.
• Output Voltage: 0~650V(Diversiform), Can Be Customized.
• Efficiency: ≥96%
• The Increment Rate in Waveform Distortio: ≤2%, No Additional Distortion
• Load Rate: 100%
• Ambient Temperature: -20~+45ºC
• Relative Humidity: ≤90%
• Altitude: <1000m
• Transport Package: Wooden Case
• Specification: WLAB-DU-50VKA~500KVA
• Trademark: WENLIDA
• Origin: China
• HS Code: 85044019
• Production Capacity: 20000PCS/M

Product Description

COMPANY PROFILE:
Shanghai Wenlida Technology Co., Ltd (hereinafter "Wenlida") is the largest manufacture base in China, the drafter of the national information industry standard, and the famous provider of voltage stabilizer.Wenlida has more than ten-year's glorious history. Since 1990, Beijing, Guangzhou, Changchun, Chongqing, Chengdu, Qingdao, Jinan and Suzhou office come into existence successively. In 2009, two new standard workshops and R&D center are established in Shanghai Jiading (37000m²) and Zhejiang Jiashan (45000m²) respectively.
Wenlida has gained public praise for its advanced technology, excellent products, stable quality and first class service. Experienced in research and technology, system design, manufacture craft and products quality has made Wenlida to be famous in the power supply industry. In 1998, 2005 and 2007, Wenlida becomes the appointed supplier of Haier, ZTE and Huawei respectively. Also, it is the qualified supplier of MITSUBISHI,HITACHI,SIEMENS,DOOSAN,MGE,Hisense and OMRON.
Nowadays, Wenlida is applying itself to the research and manufacture of clean energy, environment protection, energy saving, safety guard products. Based on the "specialized voltage stabilizer", "transformer" and "harmonic active filters", Wenlida will try to become the modern designer and manufacturer of new power supply.

PRODUCTION OVERVIEW:
By changing the contact position between the brush and the polished surface of the cylindrical winding, the turns ratio of the primary and secondary winding can be altered. To ultimately achieve the goal of the voltage regulation, this type of regulator is called a electric voltage regulator with column-type. Indeed, it is a large contact-type electric voltage regulator which is a replacement product for the inductive voltage regulator. Compares with the inductive voltage regulator, its appearance, weight, dimension, efficiency, waveform, operation, installation, and maintenance are all superior to those of the inductive voltage regulator. Especially, the column-type electric voltage regulator can be used, as a continuously adjustable test power supply, applicable to industrial power, mining power, hospitals, national defense, scientific research, and other departments.

MODEL DESCRIPTION OF WIRING & MOTOR
TECHNICAL PARAMETERS:

NO.	ITEM NAME	ITME DESCRIPTION / SPECIFICATION
1	Product name	AC Voltage Regulator
2	Model No.	WLAB-DU-(50kVA~1000kVA)
3	Rated capacity (kVA)	50~1000
4		Another rated capacity (kVA)can be customized.
5	Phase No. (options)	single-/mono-phase
6		three-phase
7	Frequency rate (Hz)	50/60
8	The rated input voltage (V) (options)	220
9		380
10		Another rated voltage (V) can be customized.
11	The rated output voltage (V) (options)	0~250
12		0~420
13		0~650
14		Another rated voltage (V) can be customized.
15	Efficiency (%)	≥96%
16	The increment rate in waveform distortion (%)	≤2%, no additional distortion
17	Load rate	100%
18	insulation grade (options)	Class F
19		Another grade can be customized.
20	Voltage regulating method	Button operation
21	Adjustment method	continuous and stepless time about 60s.
22	Electrical strength	No breakdown or flash-over occurs while testing with the power frequency sine wave voltage in 2000V in 1 minute.
23	Protection function(s)	With overvoltage protection, overcurrent protection, short circuit protection, temperature protection, phase sequence protection, Zero position protection, upper and lower limit protection, start interlock.
24	Output display (options)	LCD display
25		Digital display
26	Heat dissipation method (options)	Natural Air (AN)
27		Forced Air (AF)
28	Operating environment	Designed for indoor use
29		Ambient temperature: -20~+45ºC
30		Storage temperature: -30~+70ºC
31		Relative humidity: 0~90% RH
32		Altitude: <1000m
33		The waveform of the power supply voltage is approximately a sine wave.
34		The three-phase power supply voltages are approximately symmetrical.
35		The installation site should be free from severe vibration and jolting.
36		The installation site should be free from gases, vapors, dust, dirt, chemical deposits and other explosive and corrosive media that seriously affect the insulation of the voltage regulator.

MAIN COMPONENTS:
DETAILS IN DIMENSIONS FOR REFERENCE:

NO	ITEM SPECIFICATION	RATED CAPACITY (kVA)	PHASE	OUTPUT VOLTAGE RANGE
				INPUT VOLTAGE (220V)	OUTPUT CURRENT (A)	INPUT VOLTAGE (380V)	OUTPUT CURRENT (A)
1	WLAB-DU-50	50	single	0~250 / 0~400	200 / 125	0~420 / 0~650	119 / 77
2	WLAB-DU-75	75	single	0~250 / 0~400	300 / 187.5	0~420 / 0~650	178 / 115
3	WLAB-DU-100	100	single	0~250 / 0~400	400 / 250	0~420 / 0~650	238 / 154
4	WLAB-DU-150	150	single	0~250 / 0~400	600 / 375	0~420 / 0~650	357 / 231
5	WLAB-DU-180	180	single	0~250 / 0~400	720 / 450	0~420 / 0~650	428 / 277
6	WLAB-DU-250	250	single	0~250 / 0~400	1000 / 625	0~420 / 0~650	595 / 385
7	WLAB-DU-300	300	single	0~250 / 0~400	1200 / 750	0~420 / 0~650	714 / 462
8	WLAB-DU-400	400	single	0~250 / 0~400	1600 / 1000	0~420 / 0~650	952 / 615
9	WLAB-DU-500	500	single	0~250 / 0~400	2000 / 1250	0~420 / 0~650	1190 / 769
10	WLAB-DU-50	50	three	0~420 / 0~650	69 / 44
11	WLAB-DU-75	75	three	0~420 / 0~650	103 / 67
12	WLAB-DU-100	100	three	0~420 / 0~650	137 / 89
13	WLAB-DU-150	150	three	0~420 / 0~650	206 / 133
14	WLAB-DU-180	180	three	0~420 / 0~650	247 / 160
15	WLAB-DU-250	250	three	0~420 / 0~650	344 / 222
16	WLAB-DU-300	300	three	0~420 / 0~650	412 / 266
17	WLAB-DU-400	400	three	0~420 / 0~650	550 / 355
18	WLAB-DU-500	500	three	0~420 / 0~650	687 / 444
19	WLAB-DU-600	600	three	0~420 / 0~650	825 / 533
20	WLAB-DU-800	800	three	0~420 / 0~650	1100 / 711
21	WLAB-DU-1000	1000	three	0~420 / 0~650	1375 / 888

APPLICATION FIELD:
RANGE:Widely used, as a continuously adjustable test power supply, applicable to industrial power, mining power, hospitals, national defense, scientific research, and other departments.

CERTIFICATION:
COMPANY HISTORY: