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Home > Instruments & Meters > Test Instrument > Test Machine > ATO Transformer Ohmmeter

ATO Transformer Ohmmeter

Name: ATO Transformer Ohmmeter
Brand: ASSEN
SKU: 102096679

US$ 2,880 - 3,550 MOQ: 1 Set

Key Specifications

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Place of Origin:

Chongqing, China

Brand Name:

ASSEN

Model Number:

ATO

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Chongqing Assen Power Equipment Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

chongqing

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Place of Origin Chongqing, China

Brand Name ASSEN

Model Number ATO

Power Electronic

Usage Auto Testing Machine

ATO Transformer Ohmmeter

Product Application

ATO Transformer Ohmmeter also called DC resistance tester is used for rapid measurement of DC resistance of transformer windings, motor winding, the reactor winding, arc-suppression coil, PT and other inductive devices. It can be used to check the welding quality of welding joints, short circuit, damaged, lead errors, the state of the tap switch and other issues

Product Features

(1) Fast measurement speed: adopt advanced dual-power constant current source technology, advanced principles, high stability, can build test current quickly, its test speed is hundreds of times of the bridge.

(2) Discharge quickly: Built-in fast discharge circuit, generally only takes a few seconds to complete the discharge, and can dynamically indicate discharge status, which effectively guarantee the personal and equipment safety.

(3) Strong anti-interference: even under a serious disturbance in the environment, the last data can be stabilized at a word.

(4) Safe to use: when test the DC resistance of load voltage regulating transformer, it can switch the tap switch position during the test, and will not cause equipment damage, safe and reliable.

Product Description

ATO Transformer Ohmmeter's technical Data:

Power Supply	Voltage:AC220V±10% Frequency:50Hz±1Hz
Service condition	Ambient temperature:-10℃~40℃ Relative humidity≤80%
Dimensions	Length350mmwidth280mmheight160mm
Weight	4Kg(exclude accessories)
Instrument Accuracy	The instrument measurement accuracy is(0.2%×reading+2words)
Security	Insulation Resistance:>2MΩ
	Leakage Current:<3.5mA
	Dielectric Strength:Power connection line on the chassis can withstand 1500V (50Hz RMS) 1 minute.
Instrument power consumption	Rating power consumption of this instrument is 80w
Measuring range and resolution	Measuring range:20mΩ resolution: 1μΩ
	Measuring range:200mΩ resolution: 10μΩ
	Measuring range:2Ω resolution: 0.1mΩ
	Measuring range:20Ω resolution: 1mΩ
	Measuring range:200Ω resolution: 10mΩ
	Measuring range:20K resolution: 0.1Ω
Display	The instrument adopts 41/2 LED display
Test current	According to a test product resistance, automatically adjust to the suitable current

Packaging & Shipping

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FAQ

Q: What is BDV test for distribution transformer?
A: When you say BDV you might mean the dielectric strength of transformer oil. A new transformer oil should have at lest a dielectric strength of 39 KV. from a British standard.Transformer oils used are normally tested using ASTM D877-82 with the KV strength tester using 1" electrodes spaced 0.1" apart and the test voltage increased at 3,000 volts/min until it breaks down. The average Kv obtained after 8 trials is considered the Oil dielectric strength.
Using this test method,dielectric strength at 30 kv and above is considered good. Dielectric strength between 23 to 29Kv is considered usable, but requires filtering. Below 23 kv, the transformer oil should be replaced. Another method ASTM D18747-82 uses the small radius electrodes but spaced only .o4 inches. The test voltage is 500volts/min and increased until breakdown. The dielectric strength is still the average Kv obtained in 8 trials. The dielectric strength of 28-29Kv is considered good. Below 28 kv, the transformer oil is usable but requires filtering. The latter method is considered a better test method.