NDJY Series Insulating Rod and Voltage Detector Test Device-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

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NDJY Series Insulating Rod and Voltage Detector Test Device

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Power Quality and Safety Tools Testing Series

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NDJY系列绝缘杆、验电器试验装置

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Product Details

The 35 kV insulating rod withstand voltage test stand is developed in accordance with the requirements of DL/T 976-2005, “Preventive Test Procedures for Live Working Tools, Devices, and Equipment,” a power industry standard issued by the National Development and Reform Commission of the People’s Republic of China. This product features lightweight construction and high strength. Its test electrodes are made of 304 stainless steel combined with conductive cotton, ensuring full contact between the electrode and the specimen; all performance parameters meet national standards. It can be used to conduct insulation withstand voltage tests on insulating rods as specified in the “Preventive Test Procedures for Electrical Safety Tools and Equipment.” The product is suitable for all industries related to the power sector.

II. Main Technical Specifications

Voltage level	10 kV	35KV	110KV
Ambient temperature	-10℃ to 40℃	-10℃ to 40℃	-10℃ to 40℃
Humidity	≤90%RH	≤90%RH	≤90%RH
Continuous operating time	Can be continuous	Can be continuous	Can be continuous
Test station	10	10	10
Bracket dimensions	900×350×750mm	900×350×1300mm	900×350×2200mm
Maximum withstand voltage	100KV	150KV	250KV
Weight (kg)	18	22	31

Device Connection Operation

1. Requirements for the test site:

For electroscopes applicable to a specified voltage range, the test shall be conducted in a laboratory shielded against external electromagnetic interference, corresponding to the maximum rated voltage U; when U… _N The clearance for voltages ≤35 kV is 1 m, when U _N >35 kV, with a spatial range of 2 m or more.

During the test, the contact electrode of the electroscope is brought into contact with the test electrode, and the indicator is positioned approximately on the central axis (horizontal axis) of the annular electrode.

The horizontal distance between the centerline of the test electrode and the annular electrode is shown in Table 3.

Table 3: Electrode Spacing (Horizontal Distance)

U _N KV	acmm	aomm	U _N KV	acmm	aomm
10	100	300	63—110	650	1000
35	430	300	220—330	850	1000
Note: 1. ac denotes a voltmeter equipped with an extended contact electrode (commonly used in substations), and refers to the distance between the test electrode and the ring-shaped electrode. 2. The AO is a voltmeter without an extended contact electrode (commonly used for power lines); it measures the distance between the test electrode and the ring electrode.

Gradually increase the voltage on the test electrode; when the “voltage present” indicator signals, the starting voltage is measured. If the measured starting voltage falls within the specified range for one of the four types listed below, the test is considered to have passed.

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NDJY Series Insulating Rod and Voltage Detector Test Device

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