Megger SVERKER 900 EXPERT リレー・変電所試験システム

説明

ザ Megger SVERKER 900 EXPERT リレー・変電所試験システム is the engineer’s ultimate toolbox, addressing the increasing need for three-phase testing in electrical distribution substations, renewable power generation stations, and industrial applications. It has a powerful combination of current and voltage sources and a range of measurement possibilities.

ザ Megger SVERKER 900 is specifically designed for basic, manual three-phase secondary testing of protection devices. In addition, you can perform various primary tests as the current and voltage sources can be connected in series and/or parallel to give you up to 105 A AC or 900 V AC output.

The instrument’s three current sources and four voltage sources can be individually adjusted with respect to amplitude, phase angle, and frequency. The fourth voltage source allows for testing of numerical relays that need a reference voltage simulating the busbar. Operating the relay tester is also incredibly easy thanks to its intuitive user interface presented on an LCD touch screen.

In addition to secondary relay testing, the Megger SVERKER900 will performs various primary tests, as current and voltage sources can be connected in series and/or parellel allowing outputs of up to 105A AC or 900V AC.

The amplitude, phase angle and frequency of each the three current and four voltage sources can be individually adjusted, whilst  the fourth voltage source can be used for testing numerical relays that require a reference voltage, simulating a busbar.

Megger SVERKER 900 Features

• The testbox for substation 3-phase testing
• Three currents and four voltages
• Stand-alone functionality
• Rugged and reliable for field use
• Generation of 900 V and 105 A in single phase mode
• Secondary and primary testing

Typical Applications

• Commissioning and maintenance of distributed and generator power substations
  • Protection relays including electromechanical, static, and numerical
  • Checking SCADA annunciation and measurement values
  • Primary injection in switchgear (single and three phase)
  • Plotting current transformer excitation curves
  • Current and voltage transformer ratio tests
  • Burden measurements for CT circuits
  • Polarity (direction tests)
  • Impedance measurements
  • Wiring checks

General test applications for the Megger SVERKER900 include

• Commissioning and maintenance
• Protection relays
• Plotting CT excitation curves
• Current and voltage transformer turn ratio tests
• Burden measurement for CT circuits
• Polarity tests
• Impedance measurement
• Single and three phase primary injection
• SCADA annunciation and measurement values
• Wiring check

HMI user interface

ザ Megger SVERKER 900 is operated using an intuitive human-machine interface (HMI), comprising of a computer based operating system and touch screen display. The HMI allows for manual or semi-automatic tests to be performed, from simple primary current injection tests to more in-depth secondary relay tests.

The HMI on the SVERKER 900 also eliminates the need for an external computer whilst testing virtually all types of single and three-phase primary and secondary protective equipment found within a substation. It can inject current up to 105A AC whilst boasting a frequency range of 10Hz to 600Hz alongside DC testing capabilty, too.

Moreover, the SVERKER900 allows for data transfer via a USB port to a computer, where .CSV data can be analysed using Microsoft Excel to create reports.

Protective Relay Testing

The Megger0 is performing a wide area for manual secondary testing of protective relay equipment. Virtually all types of single-phase and three-phase protection can be tested, from modern multifunction relays to electromechanical relays. It can inject current up to 105 A when high range is needed and it has a frequency range from 10 Hz up to 600 Hz and also DC could be utilized. In the “expert mode” the user have the possibility to add layers of superimposed frequency. The rugged hardware design is built for field use over a wide temperature range, with intelligent software to perform rapid testing.

Relays which the SVERKER 900 can test:

• Distance protection/under impedance relay, Ansi Number 21
• Overfluxing relays, Ansi Number 24
• Sychronising or sychronism-check relays, Ansi Number 25
• Undervoltage relays, Ansi Number 27
• Directional Power relays, Ansi Number 32
• Undercurrent or underpower relays, Ansi Number 37
• Loss of field relays, Ansi Number 40
• Negative sequence overcurrent relays, Ansi Number 46
• Phase sequence voltage relays, Ansi Number 47
• Thermal relays, Ansi Number 49
• Overcurrent/ground fault relays, Ansi Number 50 (N)
• Inverse time overcurrent relays/ground fault relays, Ansi Number 51 (N)
• Power factor relays, Ansi Number 55
• Overvoltage relays, Ansi Number 59
• Voltage or current balance relays, Ansi Number 60
• Directional overcurrent relays/ground fault relays, Ansi Number 67 (N)
• Motor overload protection, Ansi Number 66
• DC overcurrent relays, Ansi Number 76
• Phase-angle measuring or out-of-step relays, Ansi Number 78
• Automatic reclosing devices, Ansi Number 79
• Frequency relays, Ansi Number 81
• Carrier or pilot wire, Ansi Number 85
• Differential protection relays (differential circuits), Ansi Number 87
• Directional voltage relays, Ansi Number 91
• Voltage and power directional relays, Ansi Number 92
• Tripping relays, Ansi Number 94

Multifunction testing solutions

ザ Megger SVERKER 900 is available to include multiple test instrumentation in one portable solution; please see the comparison chart below for options available. Using the different test settings, the substation test tool can be used for the following test scenarios:

• Main Instrument
  • Timing test
  • Manually determine the pick-up and drop-off of relay contact
  • General: set, inject, measure
• CT Magnetization Instrument
  • Determine the knee point voltage of the CT
• Prefault – Fault Instrument
  • Timing test – used mainly to test relays that require a simulation of the prefault state before fault simulation
• Ramping Instrument
  • Automatically determine the pickup threshold
  • Time testing, e.g when testing df/dt relays
• Sequence Instrument
  • Simulation of sequences, e.g auto re-closure, motor starts, re-striking earth fault
• Impedance Instrument
  • The impedance screen allows for testing relays directly from the impedance pane, where calculations of impedance into current and voltage is completed by the SVERKER 900
  • Prefault and fault test
  • Impedance ramping

Megger SVERKER 900 specifications

• Current channels 3 AC and DC
• Number of binary inputs 6
• Output frequency range DC, 10 – 600 Hz
• Voltage channels 4 AC and DC

参照

Megger SVERKER 900 Brochure

Megger SVERKER 900 Data Sheet

製造元情報