Description

 

HD8000 Tan Delta Tester

 

Introduction

 Dielectric loss test is a basic method in insulation test and effectively detect damp, degradation and partial defect of insulation of electrical equipment. This method is widely used in electric manufacturing, electric equipment installation, connection and preventive test. Measurement on dielectric loss of transformer, mutual inductor, reactor, capacitor, bushing and arrester is the most basic method to test their insulation property. Fully-automatic anti-interference dielectric loss tester breaks through the traditional bridge testing method and adopts variable frequency power technology, single chip and modernized electrical technology to carry out automatic frequency shift, analog-to-digital conversion and data computing. It features strong anti-interference capacity, high test speed, high precision, automatic digitization and easy operation. It adopts high-power switching power supply, which outputs 45Hz and 55Hz pure sine wave and automatically increase the voltage to a maximum value 10 KV. It can filter 50Hz interference automatically, and it is applicable to the site test of substation and other places with large electromagnetic interference. This methods is extensively applied in dielectric loss measurement of transformer, mutual inductor, reactor, bushing, capacitor, arrester and others equipment in power industry.

 

Features

1.The instrument adopts complex number current method to measure capacitance, dielectric loss and other parameters. The measured result is highly accurate and it is easy to realize automatic measurement.

2.The instrument adopts variable frequency technology to eliminate 50Hz/60Hz power frequency interference. So a reliable data will be reachable even under the strong electromagnetic interference.

3.The instrument adopts large screen LCD.

4.The instrument is easy to operate and the measuring process is controlled by microprocessor. Once a suitable measuring method is selected, the data measurement will complete automatically under the control of microprocessor.

5.The instrument is designed to be an integrated model with reference capacitor and HV power supply in it, enables site test measurement and reduces site wiring.

6.The instrument is equipped with CVT testing function, which can achieve CVT self-exciting testing without external accessories and measure the capacitance and dielectric loss of C1 and C2 by at a time.

7.GST measurement adopts ivddv technology and avoids unstable data provided by previous GST measurement.

8.The instrument provides low voltage shell function of GST. When the bus of 220kV CVT is grounded, dielectric loss measurement can be conducted for C11 without removing 10 kV GST

9.The instrument has a function of measuring high-voltage dielectric loss. It can carry out dielectric loss test with over 10kV with the help of voltage transformer or series resonance.

10.The instrument has a ground-fault protection function. In case that the instrument is not grounded or grounded incorrectly, the instrument will refuse to enter into normal procedure and output HV. As for the over-current protection function, it will protect the instrument from damage when the tested article is in a short circuit or breakdowns.

11.The instrument has a function of electric shock protection. When the instrument operator suffers an electric shock due to incaution, the instrument will cut off the HV immediately and thus ensure the security of operator.

Parameters

Accuracy	Cx:±（reading×1%+1pF）
	tgδ: ±（reading×1%+0.00040）
Anti-interference:	Variable frequency anti-interference, the above accuracy can be reached under 200% interference.
Capacitance range	Internal HV: 3pF～60000pF/10kV 60pF～1μF/0.5kV
	External HV: 3pF～0.5μF/10kV; 60pF～10μF/0.5kV
Resolution	Maximum 0.001pF, 4 valid figures.
	tgδ range:unlimited, 0.001% resolution, automatic identification for capacitance, inductance and resistance of three tested articles.
Test current range	10μA～1A
	Internal HV: Set voltage range: 0.5～10kV   Voltage resolution : 1V   Accuracy: 2%
	Maximum output current: 200mA
	Buck-bust method: continuous step-less regulation
Test frequency	45, 50, 55, 60, 65 Hz single frequency
	45/55, 55/65Hz, 47.5/52.5Hz Hz automatic dual variable frequency
	Frequency accuracy: ±0.01Hz
	External HV: In case of UST, maximum test current is 1A, and power frequency or variable frequency is 40-70Hz
	CVT self-exciting low voltage output: Output voltage 3～50V, output current 3～30A
Measuring duration	About 36s, depending on measuring method
Input power supply	220V AC, 50Hz±1%, supplied by alternating current or generator
Computer interface	Standard RS232 interface
Printer	WH-A7 mini-type thermal printer
Environment temperature	-10℃～50℃
Relative humidity	<90%
Dimension	460×360×350mm
Weight	28kg

 

FAQ:

1. When can I get the price?

We usually quote within 6 hours work time after we get your inquiry. If you are very urgent to get price, please call us or tell us in your email so that we will regard your inquiry priority.

2. What about the delivery time for production?

Honestly, it depends on the order quantity and the product. Usually our leading time is within 7 working days after order confirmation.

3. What is your payment terms?

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

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

This will depend on size of your goods and method of shipping (by sea/ by air/by Express) and your designated seaport or airport. We will be grateful if you can spare us some minutes to evaluate the cost based on the information of product.

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

Our warranty period is one year free and lifelong maintenance. If the product is damaged (if not man-made damage), in the first year,we will send free parts for replacement. Over warranty, maintenance is paid service.

6. Do you have Technical Backup to all customers from different countries?

To be sure,our technical support is always available and quick response.
We are manufacturer with much on-site testing experience, thus we know how to deal with your problems. Moreover, our engineers can go to your country to support if needed.