MOEORW-WHVA45 45kV VLF Hipot Tester with Tan Delta

Product Introduction

The MOEORW-WHVA45 VLF Hipot Tester 0~45kV can test medium-voltage cables according to relevant standards, including the European Committee for Electrotechnical Standardization (CENELEC) harmonized documents HD 620 S1:1996 and HD 621 S1:1996.

A 0.1Hz sinusoidal voltage with an effective value up to 24kV is available. This type of cable testing can detect faults in the insulation layer, especially water treeing damage, reliably preventing flashover not only in polyethylene (PE)/cross-linked polyethylene (XLPE) cables but also in paper-insulated cables. The testing procedure does not damage fault-free insulation. The cable can also be tested for insulation breakdown strength using DC voltage (positive and negative voltages) and trapezoidal AC voltage (rectangular wave voltage). The slewing rate of the rectangular wave voltage depends on the cable capacitance and is automatically adaptive. Additional leakage current measurements in DC mode allow for assessment of the relative quality of the cable insulation. The sinusoidal shape of the system test voltage can also directly test the cable's dielectric loss factor, thus determining the degree of loss factor degradation.

Product Parameter (specification)

The testing system is defined by the following technical parameters.

Output voltage
model	MOEORW- WHVA34			MOEORW-WHVA45
Output voltage (sine wave)	max. 24kV _RMS(34kV _PEAK)			max. 31.8kV _RMS(45kV _PEAK)
DC voltage	±1–34kV			±1–45kV
resolution	0.001kV			0.001kV
Accuracy	1%			1%
Output current
Measurement range	0–14mA			0–14mA
resolution	1µA			1µA
Accuracy	1%			1%
Maximum capacitive load	0.1Hz@0.5µF/24kV _rms/34kV _peak 0.05Hz@1.0µF/24kV _rms/34kV _peak 0.01Hz@8.0µF/18kV _rms/25kV _peak			0.1Hz@0.5µF/31.8kV _rms/45kV _peak 0.05Hz@1.0µF/31.8kV _rms/45kV _peak 0.01Hz@5.0µF/22kV _rms/31kV _peak
Dielectric loss factor measurement
VLF-Sine		1-24kV rms	1-31.8kV _rms
Load range		1nF-8uF	1nF-5uF
resolution		1x10⁻⁵	1x10⁻⁵
Accuracy		1x10⁻⁴	1x10⁻⁴
Measurement range		1x10⁻⁴ -9999.9 ^x10^⁻⁴	1x10⁻⁴ -9999.9 ^x10^⁻⁴
tan-δ measurement frequency		0.1Hz	0.1Hz
General information
Power consumption		max.300VA	max.400VA
Reverse voltage protection		13kV	15kV
Data Interface		USB 2.0
size (Width x Height x Depth)		Peli Case 1430, 430 mm x 240 mm x 340 mm
weight		22kg
Ambient temperature (run)		-10 to +50 ^°C
Storage temperature		-20 to +60 ^°C
Safety and Electromagnetic Compatibility (EMC)		Compliant with CE standards and the Low Voltage Directive (2014/35/EC). Electromagnetic Compatibility Directive (2014/30/EC), Environmental Impact EN60068-2 and subsequent versions
User interface Provided in multiple languages		English, Simplified Chinese, Russian, Spanish, etc.

Product feature and application

The MOEORW-WHVA45 test system integrates the following features and functions:

• Full AC voltage testing up to 24/31.8 kV RMS (sine wave voltage).

• Integrated machine for testing ultra-low frequency withstand voltage and dielectric loss factor

• Other output voltage waveforms for DC and rectangular waves

• Sheath testing and precise positioning, up to 10 kV

Leakage current measurement

• Manual and automatic frequency adjustment

• Voltage breakdown detection and automatic disconnection of high-voltage connection.

• Record the data to internal storage, then export it to a computer via USB drive to generate a test report.

• Firmware update via USB

Prodection details

Medium voltage cable insulation testing

For medium-voltage cables such as polyethylene (PE)/cross-linked polyethylene (XLPE) and paper insulation, insulation layer faults (such as water tree damage) are detected. The degree of insulation degradation is determined by ultra-low frequency withstand voltage and dielectric loss factor tests, and the tests do not damage fault-free insulation layers.

Comprehensive test of cable insulation performance

It can perform insulation breakdown strength tests on cables (positive and negative DC voltage, trapezoidal AC voltage mode), simultaneously measure leakage current, and evaluate the relative quality of cable insulation from multiple dimensions; it can also perform cable sheath testing and precise fault location (up to 10 kV).

Electrical equipment insulation testing

It can perform withstand voltage and dielectric loss tests on bushing-type electrical equipment, and is suitable for insulation performance testing needs of related equipment in power scenarios such as power plants.

Company Qualifications

FAQ

Q: Are you a factory or a trading company?

A: We are a professional manufacturer of testing equipment.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: How is the after-sales service?

A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.

Q: What about transportation?

A: It depends on your requirements. We can ship to your airport by air, to your seaport by sea, or to your office by courier.
We also accept cooperation with your shipping agent.

Q: Are your keyboard, interface, software, and manuals in English?

A: Yes, if you are using the English version of the keyboard, interface, software, and manual and require other languages, please contact us for confirmation.

Hot Tags: 45kV VLF Hipot Tester with Tan Delta, China 45kV VLF Hipot Tester with Tan Delta manufacturers, factory