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Universal Electrotechnical Laboratory "Angstrem-3"

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Universal Electrotechnical Laboratory "Angstrem-3" Universal Electrotechnical Laboratory "Angstrem-3" Universal Electrotechnical Laboratory "Angstrem-3" Universal Electrotechnical Laboratory "Angstrem-3"
Model Number: АНГСТРЕМ-3
Condition: New
Location or Storage Country: Russia
Service Engineering Support: Yes
Warranty: No
Price: Call for price
Description:
Professional electrotechnical laboratories manufactured by ANGSTREM LLC make it possible to solve a full range of tasks in testing, diagnostics and finding places of damage to underground cable lines; testing substation equipment.
Overview:
Appointment
  • Tests of underground cable lines with any type of insulation.
  • Determining the distance to the places of damage to power cables by the most modern and effective methods:
    • reflection method,
    • pulse-arc method,
    • voltage wave method
    • current wave method.
  • High-precision location of damage to underground cables using topological methods:
    • induction
    • acoustic
    • acoustic electromagnetic
    • potential.
  • Survey of the terrain and the search for communications and cable lines, including those under voltage of 50 Hz.
  • Determination of the depth of underground utilities.
  • Select a specific 1-phase or 3-phase cable from the bundle.
  • Burning places of damage to the insulation of power cables.
  • Testing of substation equipment.
  • Measurement of high-voltage insulation parameters.
  • Measurement of parameters of power transformers at low voltage.
  • Diagnostics of the insulation state of power cables by measuring the parameters of partial discharges at an ultra-low frequency.
  • Diagnostics of low voltage equipment.
Characteristics

Transport base

Base chassis. General equipment At the request of the customer /

The control system of the universal electric laboratory "ANGSTREM-3"

Appointment Centralized control over the testing and measurement processes, the search for places of damage.
Types of Control Systems
  1. Automated (computerized) control system.
    Operational information is reflected on the monitor of the control panel. Process control is carried out using specialized software.
  2. The control system is a classic type.
    Equipped with manual controls and a digital display that displays the results of measurements and tests in digital-analog form.
Design Modular, consists of three racks 19 ”wide and not more than 400 mm high above the countertop. Racks are built into a single shockproof frame, which has high resistance to traffic loads. The presence of a spacious worktop with a width of 1700 mm and a depth of at least 340 mm allows you to conveniently place instruments and record. An operator footwell is provided under the worktop in the center of the rack.

Main modules of the universal electrical laboratory "ANGSTREM-3"

Title Description
High voltage switching module Designed for safe remote switching of high-voltage leads of the main equipment and measuring instruments to high-voltage shielded cables.
Type of connection to the cable line: 1-phase or 3-phase.
Allows using one control knob to select the phase of the cable and the type of electric laboratory equipment.
Power Security Module Decoupling the control system elements from the mains and stabilizing the supply voltage.
Voltage regulator module Smooth regulation of output voltages of power modules of the electric laboratory.
Feature: “dry”, vibration-proof design.
Low Voltage Measurement Module Carrying out low-voltage measurements on alternating and direct voltage (transformation ratio of transformers, resistance of transformer windings, etc.).
Loss tangent measurement module Monitoring the insulation parameters of high-voltage equipment.
Test Burning Complex
System for measuring high voltage SVI-100/140
Test voltage source
Automatic current limiter
Automatic discharge complex 		Tests with rectified voltage and alternating voltage of industrial frequency.
Additional functions:
  • burning of damaged insulation of power cables at high voltage up to 60 kV,
  • signal generation when searching for places of damage to power cables by voltage wave method.
  • Feature: low consumption - no more than 6kVA even with power output up to 20kVA.
Combined communication module
  • Automatic limitation of currents that occur during the breakdown of the object.
  • Signal generation when searching for places of damage to power cables by the voltage wave method (option).
  • Creating the possibility of joint work of the test voltage source and the main burning unit (option).
Measuring complex
Cable reflectometer KR-90
Adapters
  • Determination of the distance to the inhomogeneities of wave resistance in cable lines.
  • Measuring the length of a cable line with a known shortening factor.
  • Measuring the cable line shortening factor at a known length.
  • Measurement of the distance to the burning arc in the pulse-arc method (ARC).
  • Measuring the distance to the place of breakdown by the method of vibrational discharge by voltage (DECAY).
  • Measuring the distance to damage by the method of oscillatory current discharge (ICE).
Type of connection to the cable line: 3-phase
Feature: control is carried out using an automated control system of the electric laboratory, allows for the efficient storage and viewing of measurement results.
Burning module Burning the insulation of power cables in order to reduce the transient resistance at the fault location to a value that allows the use of induction or acoustic methods for finding fault locations.
Number of steps:
  • 4 stages of burning with rectified voltage up to 15 kV,
  • 3 stages of afterburning on alternating current up to 91 A.
Seamless switching of output voltage steps without switching off the module, including at full power.
The principle of operation of the installation eliminates the avalanche-like uncontrolled formation of the “metal bridge”.
Acoustic module Creation of powerful electric discharges in the place of damage to the insulation of power cable lines with acoustic and pulse-arc search methods.
Ranges of output voltage: 9, 18, 36 kV.
Maximum energy up to 2600 J, option up to 4000 J.
Equipment for tracing and locating damage to cable lines
Search kit KP-500K 		Determination of places of damage, depth of underground cables, survey of the terrain, search for communications, selection of cable from the bundle.
Feature: the function of estimating the distance to the place of damage by the acoustic-electromagnetic method.
Cable reel and patch cable system Operational connection of mobile electrical laboratories to test objects, power supply network and protective grounding system.
Design:
The flat design with one-way access provides easy access in the high-voltage compartment.
Security:
All drums have quick locks to protect them from scrolling while the vehicle is moving.
Number of reels: 4 or 6, depending on the type of cable connection (1-phase or 3-phase).
Ground Control Module Quality control of ground circuits and potential values on the body of the electric laboratory.
Autonomous power supply module Ensuring full-fledged operation of all (main) modules of the electric laboratory at full power in stand-alone mode.
Kinds:
Diesel Generator / Petrol Generator
Installation Options:
  • removable (serial version),
  • stationary, incl. on small chassis (optional).
Electrical safety system Ensuring electrical safety of the personnel of the electric laboratory.
Composition:
Safety control module
Door position sensors
Sound alarm
Light alarm
Emergency shutdown button
Visible open contact release
Set of automatic contactors
Protective isolation transformer

Additional equipment

High voltage subwoofer
  • Testing cables with cross-linked polyethylene insulation with VLF alternating voltage.
  • Testing high-voltage power cables with constant voltage.
  • Measurement of partial discharge parameters and the dielectric loss tangent in the insulation of power cables (option, complete with diagnostic equipment).
Cable voltage class: up to 220 kV (inclusive).
Power transformer meter Carrying out electromagnetic tests of transformers. Functions:
  • measurement of current and idle losses at low and rated transformer excitation voltages,
  • measurement of current and short circuit losses,
  • transformation ratio measurement,
  • determination of the connection group of the windings of three-phase transformers and the polarity of the terminals of single-phase transformers,
  • measuring the resistance of transformer windings to direct current.
Electrical insulation meter
Megaometer 		Measurement of resistance and all basic parameters of electrical insulation of cable lines, transformers, motors and other electrical devices and telecommunication installations.
Additional devices, equipment, tools, personal protective equipment and more At the request of the customer /
Company Profile

OOO «Angstrem»

Locations: Russia / Yaroslavl
Main Products/Services: Modern equipment for locating damage to underground power cables, detecting and tracing underground utilities
Registration: Russia / Yaroslavl
Year Established: 1992