Htxz (L) Variable Power Frequency Series AC Resonant Test Systems for High Voltage Cables

Product Description

HTXZ(L) 200kVA-2750KVA Power Frequency Hydro Resonant Withstand Voltage Tester System with Adjustable Inductance Reactors for Hydrodynamo/Hydraulic generator

Product Description

HTXZ series variable frequency resonant device is a common primary electrical equipment of substations. It is applied for voltage withstand test of capacitive equipment, such as transformer, GIS system, SF₆ switch, CT/PT, insulator, busbar, cable and bushing ect. This device is researched and manufactured according to withstand test regulations of 220KV and blow substations primary electrical equipment. The AC/DC voltage withstand test equipment both need satisfy high voltage, small current and low voltage, large current test condition, and with wide application range. HTXZ using the principle of series resonant, is composed by variable frequency power source control box(console), excitation transformer, reactor and capacitive voltage divider,compensating capacitor.

Technique parameters

Rated output voltage	0 ~ 60kV(AC RMS) and below
output frequency	50Hz
Resonance voltage waveform	Pure sine wave, waveform distortion rate ≤1%
Work system	Full power conticontrol consolenuous working time of 1min
quality factor	10~40
Maximum test capacity	3000kVA and below
Working power supply	380V±15%,Power frequency 50Hz

Serial product configuration(Scope of application(Ac withstand voltage test for generator or motor with outlet voltage of 20kV or below, test frequency: 50Hz))

Product model	control console	Voltage regulator	reactor(dry)	Excitation transformer(dry)	Voltage divider	Scope of application
HTXZ(L)- 200kVA/25kV	30kW	30kVA(electric)	200kVA/25kV Adjustable one	30kVA dry	30kV	hydrodynamo.0.4~1.0μF.(10kV/40MW)
HTXZ(L)- 300kVA/50kV	60kW	60kVA(electric)	300kVA/50kV Adjustable one	60kVA oil-immersed	50kV	Thermal generator.0.27~0.33μF.(20kV/300MW)
HTXZ(L)- 600kVA/50kV	60kW	60kVA(electric)	200kVA/50kV Adjustable one 400kVA/50kV Adjustable one	60kVA oil-immersed	50kV	Thermal generator.0.113~0.45μF.(20kV/600MW)
HTXZ(L)- 1200kVA/50kV	120kW	120kVA(induction)	200kVA/50kV Fixed two 800kVA/50kV Adjustable one	120kVA oil-immersed	50kV	hydrodynamo.0.6~1.8μF.(20kV/250MW)
HTXZ(L)- 2750kVA/55kV	300kW	300kVA(induction)	750kVA/55kV Fixed two 1250kVA/55kV Adjustable one	120kVA oil-immersed	60kV	hydrodynamo.1.6~3.3μF.(20kV/7

Capacitance of the power system commonly used hydrodynamo reference table

Drodynamo	Rated Capacity(WM)	rated voltage(kV)	Phase capacitor(μF)
	72.5~85	10.5	0.694
	125~150	/	1.8~1.9
	300	15.75	1.7~2.5
	400	18.0	2~2.5
	600	/	2.1~2.5

Features:
 

• Due to full compensation of resonant reactive power, the power of power supply and equipment is less than 1/10 of the required capacity of the subject (1/q10); Small size and light weight with the same capacity, large output capacity of the device and small power capacity required for configuration, cheap, convenient and safe operation.

• Series resonance is actually a current filtering circuit, so that the current passing through the subject is basically the fundamental current, and the waveform distortion rate (THD) of the output voltage is very small, which is superior to all existing ac voltage withstand equipment.

• The short circuit current of the sample after flashover or breakdown is only less than 1/10 (1/Q) of the test current before short circuit, which can effectively prevent the expansion of damage to the fault point after breakdown.

• After flashover, the arc will be automatically extinguished immediately. The long (number of seconds) process of restoring resonant state voltage after arc quenching is a steady-state establishment process, and there is no danger of voltage overshoot and no danger of restoring overvoltage in microsecond millisecond transient process.

 

 

Company Profile

 

FAQ

 

1. Is your company a sales company or a manufacturer?

Wuhan Huatian Electric Power Automation CO., LTD.is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.

2. When can i get the price ?

We usually quote within 6 hours after we get your inquiry. If you are very urgent to get the price, please call us or send us your email so that we can provide you the details at our first time.

3.What is your terms of delivery ?

We accept EXW, FOB, CFR, CIF ect. You can choose the one which is the most convenient and cost effective for you.

4. How much will be the Shipping cost and time?

This will depend on the size and quality of the goods you purchased and the method of shipping(by sea/ by air/ by Epress) and your designated port or air port. We will be grateful of you can spare us some times to evaluate the cost based on the information provided.

5. Could you please tell me the Warranty Period of your product ?

Our warranty period is one year free and lifelong maintance, and if the product is damaged (if not man-made damage),
in the first year, we will send free parts for replacement or free repairment if you willing to send back the equipment (customer will take the shipment cost).

6.What kind of Certificate can you provide ?

We can provide the CE mark, ISO 9001 quality certificate, the third party calibration certificate(CNAS), factory test report.

7.Do you have Technique support to all customers from different countries ?

To be frankly, our techinical support is always avaliable and quick response in 12 hours. We are manufacturer of so much on site testing experience and understand how to deal with your problems.

Contact us

 

Wuhan UHV Power Technology Co.,Ltd.
Address:Building 6, Optics Valley Optical-Mechanical Industrial Park, No.83, Gaoxin 5th Road,
East Lake High-tech Zone, Wuhan city .China 430223