Transmission Line Test System

Transmission lines are the connectors running between generating stations and distribution stations. Transmission lines carry high voltages from the generating stations to primary transmission stations, secondary transmission stations, primary distribution stations, and secondary distribution stations

- Power transmission lines
- Polygon poles
- Lighting poles
- Catenary poles
- Telecommunication poles

This instrument is an instrument which is specially used for transformer loss parameters and line frequency parameters testing. The instrument has the advantages of ingenious design excellent performance and powerful functions. The interior adopts advanced multi A/D synchronous sampling and digital signal processing technology and successfully solves the problem of multi-channel signal synchronous measurement and calculation. The instrument adopts large screen liquid crystal display Chinese menu prompt simple operation equipped with high-speed thermal printer and has storage function convenient for data storage and printing. The instrument is small in volume light in weight easy to carry and is very convenient to use in the field. It greatly reduces the labor intensity of the experimenters and improves the working efficiency.


1. Large LCD display simple menu operation.

2. With thermal printer storage function.

3. Small volume and light weight suitable for field work.

We are trading in product of power transmission line hardware fittings. Manufacturing/ forged department is our sister concern part that is why we are able to give you best quality and competitive rate.

Our product ranges are 33kv to 400kv. But we are able to provide you all hardware as per your requirement (product load, map-size, drawing, etc…)

We are able to provide you our entire product with all standard testing and/ or as per your requirement.


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Our products size are depend on particular requirement. It is 33kv to 400kv. That is why size is different.

OMSE project team can carry out all kinds of energy transmission line tower design and, if requested, type tests of these structures are made at international and accredited stations. Besides, static controls of designs from customers and end-users, manufacturing drawings and manufacturing cards can be prepared by the OMSE project team.

All the products that have not been manufactured before, prototype installation and then prototype controls are carried out by OMSE quality teams. After all the details have been examined If it is required, revisions are made, and serial manufacturing phase is initiated. If requested, our customers and end-user management authorities can participate in prototype inspections.

DC voltage test system
DC test systems are used to test components and complete systems found in electrical power supply systems and operating on DC voltage. POWERHV DC voltage test systems fulfill the requirements of IEC 60060-1.

The DC voltage test systems can be equipped with polarity reversal.
Applications
High-voltage DC testing for transformers, cables, bushings, switchgears, etc.
Wet and pollution testing
DC current measurements at high-voltage potential
For use indoors and outdoors or modular system for onsite testing
For test and research of DC transmission line corona, radio interference, pollution flashover.
Main components:
DC High Voltage Test System 
Series ZL
up to 2400 KV
up to 1 A
DC HV measuring system
Series DZF 
DC voltage divider
up to 2400 KV
Control system( manual operation or computer-aided automatic systems)
Additional features and accessories:
Fast polarity reversal
Bipolar test systems
Controlled power supply to reduce voltage drop
Moveable design
made solution upon customer's request

Overview

This device is designed and manufactured for 35kV cable AC withstand voltage test. The reactor is individually designed for multiple units, which can not only meet the test conditions of high-voltage and low-current equipment, but also meet the low-voltage AC withstand voltage test requirements of 10kV cables.

The special AC resonance test system for cables adopts the method of adjusting the frequency of the power supply, so that the reactor and the capacitor under test can achieve resonance, and the high voltage and large current can be obtained on the test product. It is a new method of current high voltage test and The trend has been widely used at home and abroad.

The AC resonance test system uses a dedicated SPWM digital waveform generator chip with a frequency resolution of 16 bits, and the frequency fineness can reach 0.1 Hz at 20 to 300 Hz; it adopts an orthogonal non-synchronous fixed carrier modulation method to ensure that the entire frequency The output waveform is good in the interval; the advanced IPM module is used in the power part to ensure the stability and safety of the instrument under the minimum weight.

The test system consists of a frequency and voltage regulation power supply, an excitation transformer, a reactor, and a capacitor divider.

Technical index

1. the resonant excitation power supply only needs 1/Q of test capacity, which is 1/10-1/30 of common test unit and reduces the system weight and volume greatly.

2. Rated voltage:

1.108kV meeting the alternating current withstand voltage test for 35kV cable;

2.Waveform distortion rate of output voltage should be less than 1.0

3.The permissible continuous working time is to work for 5 minutes at one time under rated condition.

4.Quality factor of unit itself: Q 50



Advantage

1.The power capacity needed is reduced greatly.

2.The weight and volume of equipment is reduced greatly.

3.The waveform of output voltage is improved.

4.The large short-circuit current is prevented from burning fault point.



Feature:

1. A large number of cables with voltage levels of 35kV and below are used, and the test workload is large, so this type of withstand voltage test device is small in size and light in weight, and a portable cable withstand voltage test system was born;

2. This system requires that the weight of the parts that a single person can move on-site does not exceed 30kg, and the weight of the parts that two people can move on-site does not exceed 60kg, which is suitable for on-site transportation;

3. The power supply adopts 220V single-phase power supply or 380V single-phase power supply, which is convenient for on-site power supply;

4. The reactor part is made of dry epoxy casting, which is beautiful and reliable, suitable for the requirements of various cables;

5. The withstand voltage test of 110kV and above cables adopts oil-immersed reactors.