top of page
UNIVERSAL RELAY TEST KIT
KPM KFA 310/310+
Relay Test Kit
High-power, High-precision, Multi-functional.
KPM KFA310 relay testing equipment has been designed with a compact interior, similar in size to an iPad, powered by batteries. This secondary injection test set weighs only 3.7 kg and offers 4x300V and 3x20A* outputs. Its maximum current can reach 50A*, and the output power reaches 130VA.
* KFA310+ can inject 20A per Current Source while KFA310 can inject 10A per Current Source.
KPM KFA 320
Relay Test Kit
KPM KFA320 protection relay tester has been designed with a compact interior, similar in size to an iPad, and is powered by replaceable batteries. It weighs only 3.8 kg and offers 4x300V and 6x20A outputs. Its maximum current can reach 60A, and the output power reaches 200VA/Phase.
Additionally, KFA320 supports IEC61850 SV/GOOSE, LPIT simulation, energy meter testing, low-level output, and transducer calibration.
Its compact design enhances engineers' work efficiency while meeting complex testing requirements.
KPM-K2099/64/34
Relay Test Kit
The KPM K2099 is a high-precision, portable relay test kit for protective relays and IEC 61850 systems. It offers 9-phase voltage/current output, up to 18-channel simultaneous operation, powerful analog outputs, and a lightweight design under 15 kg.
Model Selection on basis of output
-
KPM 2099 | 9I + 9V
-
KPM 2064 | 6I + 4V
-
KPM 2034 | 3I + 4V
KPM - K68I(3I & 4 U )
Relay Test Kit
K68i is a powerful & robust relay test kit for semiautomatic and manual testing of relays .
Able to test most of Relays by manual or semiautomatic modes
Features
● 3x35A & 4x300V independent high burden and accuracy output channels.
● Lightweight, <20.5Kg.
● Inbuilt 6.4" True color TFT LCD display, keyboard and rotary encoder, fully control without laptop.
Video Relay Test Kit
Videos - Relay Test Kits
Relay Test Kit Videos
Relay Test Kit Videos
Share
Facebook
Twitter
Pinterest
Tumblr
Copy Link
Link Copied
Search video...
Now Playing
KPM KFA320
00:35
Now Playing
Random check on K3063i universal relay test kit with fluke 6.5 digit multimeter .
01:10
Now Playing
KFA 300 , Lightest Relay Test Kit ( 3.5 KG )
07:29
Theory - Relay Testing
Theory -Relay Test Kit
Relay Testing Kit – Theory
Protective relay is a device which maintains the power system equipments and gives an output under an abnormal condition to ensure protection of the system. The basic objective of the protective relay is to isolate the faulty section in a power system as quickly as possible so that rest of the system functions normally. It is necessary to ascertain security, reliability, quality, sensitivity and speed of relays.
Various tests are recommended in National and International Standards to check the withstand capacity of a relay during fault conditions. During testing, protective relay is made to undergo simulated field conditions to check its performance. The relevant National / International standards recommend many tests to ascertain the relays effectiveness to perform its intended function.
A Relay receives the input signals from CT’s/ PT’s and its program calculates the fault conditions as per application. It issues a trip command to the Circuit Breaker on sensing a faulty condition. On the basis of application, Relay may be classified into below types:
Step 1:
Relay Testing Kit injects fault in form of I & V on respective CT & PT points of Relay under test . The Timer of Relay Testing Kit starts by initiating fault injection.
Step 2:
Relay senses the fault & issues the trip command, its trip timing must depend on the time characteristics of relay settings.
Step 3:
Relay Testing Kit receives the trip command from Relay & Stops the timer.
Step 4:
The measured tripping characteristics are compared with respect to expected tripping as per settings by Engineer.
The basic connection of protection relay has been shown in the picture. The secondary of current transformer is connected to the current coil of relay. The secondary of voltage transformer is connected to the voltage coil of the relay. Whenever any fault occurs in the feeder circuit, proportionate secondary current of the CT will flow through the current coil of the relay due to which mmf of that coil increases. This increased mmf is sufficient to mechanically close the normally open contact of the relay. This relay contact actually closes and completes the DC trip coil circuit and hence the trip coil is energized. The mmf of the trip coil initiates the mechanical movement of the tripping mechanism of the circuit breaker and ultimately the circuit breaker is tripped to isolate the fault.
Types of Relay as per various requirements:
-
Differential Relay
-
Over Current Relay
-
Frequency Actuated Relay
-
Directional Over Current Relay
-
Restricted Earth Fault Relay
-
Over Fluxing Relay
-
Distance Schemes Relay
-
Bus bar Protection Relay
-
Reverse Power Relay
-
Loss of excitation Relay
-
Negative Ph. Sequence Relay
-
Energy Meters Relay
-
Transducers Relay
-
Fault Playback Relay
Frequently Asked Question
FAQ-RTK
FAQ about all our Relay testing Software
- 01Protection relays and IEDs across the common functions, plus two instrument families. The basic modules cover AC/DC injection, ramping, state sequencing, harmonics, frequency and transient playback. The function modules add distance, overcurrent, differential, differential configuration, harmonic restraint, auto-reclose, synchronism check and power swing. On the digital side it tests IEC 61850 protection and IEDs using GOOSE and sampled values, and merging units. Two licensed optional modules extend it to energy meter and transducer calibration. The Test Center then chains any combination of those into a single automated run.Protection relays and IEDs across the common functions, plus two instrument families. The basic modules cover AC/DC injection, ramping, state sequencing, harmonics, frequency and transient playback. The function modules add distance, overcurrent, differential, differential configuration, harmonic restraint, auto-reclose, synchronism check and power swing. On the digital side it tests IEC 61850 protection and IEDs using GOOSE and sampled values, and merging units. Two licensed optional modules extend it to energy meter and transducer calibration. The Test Center then chains any combination of those into a single automated run.The six basic modules on the startup page. Advanced and additional tabs hold the function-specific ones — distance, overcurrent, differential, reclose, synchroniser and power swing.
- 02Windows 7 SP1 through to Windows 11. On Windows 7 you also need .NET Framework 4.0, and 8 or 8.1 must be 64-bit. Installation requires administrator privileges — right-click the installer and choose “Run as administrator”, or it will fail part-way. Screen resolution must be at least 1024 × 768, though in practice the impedance and characteristic editors are far easier to work with on a larger display. One recommendation from the manual that is not a hardware requirement but matters more than any of the above: run it on a dedicated machine that is not connected to an external network.
- 03Over Ethernet, and the only thing to get right is the addressing. The kit leaves the factory on 192.168.1.123. Set the laptop to anything else on that subnet — 192.168.1.x where x is 1 to 254 but not 123 — with subnet mask 255.255.255.0, then connect the cable. The software shows the connection state at the top right of the window, reading either “Connected” with the kit's IP address or “Not connected”.The whole connection procedure in one picture. The kit ships on 192.168.1.123; the laptop goes anywhere on 192.168.1.x except .123, subnet mask 255.255.255.0
- 04Two causes account for almost all of it. First, the laptop and the kit are on different subnets: the software will display the kit's IP address but never complete the connection, and will keep retrying indefinitely — which looks like a fault but is just an addressing mismatch. Check the laptop's IP is on the same segment. Second, the Windows firewall is blocking the connection; confirm it is not filtering the software. If the laptop has more than one network adapter, check you have configured the one the cable is plugged into.
- 05Yes, and it is a genuinely useful way to work. Opening the System Settings dialog with no kit connected lets you import an offline device configuration file, after which you can explore every feature and build complete offline test templates. That means the whole preparation job — importing relay settings, defining the test object, laying out modules, adding test points — can be done at a desk the evening before, so the site visit is spent testing rather than typing. The software is in any case designed to run entirely offline; it needs no internet connection at any point.Relay settings in on the left, reports out on the right. Everything between happens inside the Test Center, and all of it can be built with no kit connected.
- 06Eight regions. The title bar and the menu and toolbar across the top; the Test Center tree down the left, holding the test object and its modules; the main test view in the centre where parameters and test points are entered; the vector view and the characteristic view on the right; a dock area along the bottom carrying history, binary input and output status, alarms and the auxiliary DC indicator; and the status bar. The two views on the right are the ones worth learning first: they show what is about to be injected and where the test point falls against the relay's own characteristic, both before anything runs.Eight regions, and the two that matter most sit on the right: the vector view shows what is being injected and the characteristic view shows where the test point falls against the relay's own curve. Both update before you run anything.
- 07It is designed for exactly that. The software functions entirely offline and needs no network access of its own, which makes it suitable for isolated substation environments. The manual sets out the practices to go with that: run it on a dedicated PC not connected to any external network, use USB drives that have been scanned for malware before and after use, take software updates only from KPM through verified offline channels, and follow your own organisation's IT and cyber-security policy. Unauthorised modification or unintended network connection is outside what KPM supports.
- 08Six, selected in System Config. Power amplifier for conventional analogue voltage and current injection, which is what most work uses. Low-level output when the signal is going into an external amplifier. And four digital modes — IEC 61850-9-1, IEC 61850-9-2, FT3 and collector — where the kit publishes digital sampled values instead of analogue signals. Selecting a digital mode automatically reveals the relevant configuration tabs in the menu bar. Whichever you choose, the configuration is not live until Apply is pressed; if the kit is not connected you will get “Failed to send configuration”.One screen decides what the kit actually emits. Note the Apply button at bottom right — nothing is sent to the kit until it is pressed
- 09It depends on how much current you need against how many channels. A six-channel kit can run six currents independently, or parallel group 1 with group 2 for three higher-current channels, or split three plus one, one plus three, or one plus one, or output three DC currents with group 2 shorted to ground. A three-channel kit offers three independent, one paralleled three-phase, or three DC. The trade is always the same: paralleling buys current at the cost of channels. Two of the paralleled arrangements are only effective in the AC test, ramp and state sequence modules.Six independent current channels, arranged as two groups of three. Paralleling the groups trades channel count for current, which is how a single kit covers both a three-phase distance test and a high-current differential test.
- 10When you need the voltage channels instead. On a four-voltage-channel kit you get four-phase voltage output plus auxiliary DC. On a seven-channel kit you choose: seven independent phase voltages with no auxiliary DC, or five-phase voltage plus auxiliary DC — and enabling the auxiliary DC in that second arrangement makes the group 2 Ib and Ic voltage channels unavailable. Worth knowing before a job, because discovering it on site means rethinking the test
- 11Powering the protective device under test, so you do not need a separate station battery supply or bench PSU at the test position. Selectable levels run from 24 V up to 350 V, with an “Other” entry for values in between. It is independent of every test module — nothing any module does affects it — and it can be switched on from the status bar of any module rather than having to leave what you are doing. When it is live, the auxiliary DC indicator on the startup page and in every module's status bar turns green.
- 12Yes, in either 9-1 or 9-2, selected to match what the IED under test actually uses. The configuration covers sample rate, ASDU count, flip mode and sync mode, then per-IED details — MAC destination and source, APPID, VLAN ID, priority, port and a test flag — and the SVID, nominal delay and version. Channels are then mapped to the fibre. None of this needs typing by hand: import the station's SCD, CID or ICD file, or a previously saved configuration, and use the “configure as group 1 to 6” buttons to finish quickly. Once mapped, the channels apply across every test module.Sampled-value configuration. The tedious part — MAC addresses, APPIDs, SVIDs, channel mapping — is avoided by importing the station's SCD, CID or ICD file.
- 13It replaces the physical binary wiring with GOOSE messages. Set the binary type to GOOSE and the kit publishes and subscribes instead of using its contact terminals — a binary output becomes a GOOSE publisher, a binary input becomes a GOOSE subscriber. Configuration covers GocbRef, GoID, dataset name, allowed time and the T0 to T3 retransmission times, and again SCL import does most of the work. A message detection function will scan for and identify the GOOSE signals actually present on the network, which saves guessing. The practical point: once mapped, every test module works exactly as it does with wired contacts.GOOSE mapped to binary channels. A publisher takes the place of a binary output and a subscriber takes the place of a binary input, so every test module then works unchanged.
- 14Where the trip signal travels. Relay contact uses the kit's physical binary input and output ports — banana plugs or a combination connector — to send and receive binary signals, and each input can be configured as potential free (wet or dry contact) or, on some models, to trigger on a voltage threshold with a nominal voltage and a reaction threshold percentage. GOOSE sends and receives the same binary signals over the mapped GOOSE channels instead. Both can be active together, which is how a part-digital substation gets tested in one pass.
- 15A software button that simulates an external binary input signal, letting you trigger a state transition from the keyboard rather than needing a real contact to close. It is useful when developing a test template offline, or when the signal you want to trigger on is not conveniently wired. To use it you first map the software button to a binary input channel in the Binary section of the software settings, then enable it under virtual digital inputs in System Config.
- 16It filters transient spikes on the trip signal so that contact bounce is not recorded as an operation. The setting range is 0 to 25 ms and it is entered on the Device tab of the test object. The rule is simple: a binary input change is only recorded if it lasts longer than the deglitch time. With a deglitch time of 15 ms, a flip shorter than that is ignored. This is worth understanding because it cuts both ways — too short and contact bounce produces spurious operations, too long and a genuinely fast trip is filtered out along with the noise.
- 17The software's model of the relay you are testing, holding its settings so every module can work from one source. It is organised by protection function — Device, Distance, Overcurrent, Differential, Synchroniser, Transducer, VI Starting and CB — and every type except Device can hold several data instances, so one test object can carry multiple setting groups for the same relay. The test object does two jobs beyond storage: it calculates the expected result for each fault condition, against which the measured result is compared to give a pass or fail; and it generates a visual representation of the relay's characteristics that you can click to place test points.The Device tab is the top of the test object. Nominal values entered here drive every module's primary-to-secondary conversion, and the deglitch time set here governs trip detection throughout.
- 18Through the Test Object Converter, reached from the “Edit / Import .krt Template” button inside the test object. The converter uses a filter that mirrors the relay manufacturer's own data structure, so the settings sit where an engineer familiar with that relay expects them. Three steps: open the template for the relay you are testing and go to Test Object → Edit; either type the protection settings in or use Import to read them from the relay setting software; then confirm and save them into the test object. Where a template carries several filters for one relay family, the one reporting more matches is generally the better fit.The converter mirrors the relay manufacturer's own data structure, so settings can be read across rather than retyped. Where several filters exist for one relay family, the one reporting more matches is the better fit.
- 19RIO, RIO3 and XRIO, plus direct import from relay setting software through the converter filter. RIO is the compatibility format, readable by both version 2.x and 3.x of the software, but it cannot carry everything — more than three elements in an overcurrent element type, for instance, will not export to it. RIO3 is the current format and is version 3.x only. An XRIO file can be imported provided it contains RIO object data; if it does not, the software will tell you the file is invalid rather than importing something incomplete.
- 20A saved .krt file holding the test object, every test module you organised under it, and all your user-defined test points. Once a relay type is set up, the template loads the whole arrangement in one step, so the second and every subsequent unit of that type is tested without rebuilding anything. For a testing contractor working through a substation full of identical feeders, this is the difference between a day and a week. Completed tests can additionally be saved as an XML report, which can be reloaded later to view results and parameters, or used interchangeably with a template.
- 21The Test Center is where modules are organised into a sequence that runs on its own. The structure is hierarchical: a Bay at the top, test objects beneath it, and test modules under each object, optionally collected into groups. Every node has an activation checkbox, and only ticked nodes are used. Then Start All runs from the first active module to the last and stops; Start One runs only the module at the cursor; Continue runs from the cursor to the end. That is what “one-click testing” means in practice — a full commissioning sequence for a relay, started once and left to finish.
- 22Each test object must have at least one System Config module, and the software adds a default one in first position automatically. A System Config applies only to modules at the same or a lower level that come after it — never to modules before it or above it. Where two System Configs would both apply, the nearest one to the module wins. One trap worth knowing: if a System Config's own activation checkbox is not ticked, its scope does not take effect at all and the modules that would have used it fall back to the default.
- 23Yes, and for anyone maintaining general-purpose templates this is the most useful feature in the Test Center. Using “From Reference” on a module's right-click menu, that module's activation checkbox can be linked to a boolean parameter in the test object. When the relay's settings change — a function enabled or disabled — the corresponding test module activates or deactivates itself to match, with no editing. A linked node shows a blue background and its checkbox is locked until the reference is removed.
- 24Pausing an automated run so a person can do something. Dropped between modules in the Test Center, it displays a prompt — text, an image, or both — and waits, with the wait set as Manual, Time, or Manual plus Time. That covers the real interruptions in a commissioning sequence: change a setting group, move a lead, confirm a link position. It can also invoke an external application, though note the limit — the software calls the external program but does not manage or check its results.
- 25Define the relay's zones in the Distance tab of the test object first — line length and angle, PT position, CT starpoint, grounding factor and a zone list with trip times — and the software draws the resulting characteristic. Then in the Distance module, place test points in the impedance plane by right-clicking on it or by typing |Z|, Phi, R and X. Points are sorted automatically by fault type and linked to the impedance view. Two settings are worth checking twice: PT position decides whether post-fault voltage is zero or nominal, and CT starpoint direction shifts the injected current by 180° if it is wrong.Zones defined on the left, characteristic drawn on the right. PT position and CT starpoint are the two settings most often left wrong — the starpoint choice alone shifts the injected current by 180°.
- 26A shot test checks specific points: you choose impedances, the kit injects each one, and the result is whether the relay tripped and how fast at each. A search test finds the boundary: you define a line through the characteristic and the software fires a series of shots along it, narrowing down until it has located the actual reach, with the number of shots calculated from the zones and the search resolution. One rule governs search lines — one end must be inside the zone and the other outside, because if both ends are on the same side there is no boundary to find.
- 27Which quantity the software holds fixed while it calculates the other. I=Constant fixes the test current and calculates the fault voltage. U=Constant fixes the test voltage and calculates the fault current. Z=Constant fixes the source impedance and calculates both from it and the test point. Two automatic protections apply: if the calculated fault voltage would exceed nominal × 0.9 the module reduces the test current, and if the calculated fault current would exceed the kit's maximum output it reduces the test voltage. The model is a global setting and applies to both shot and search tests.
- 28Define the elements in the Overcurrent tab of the test object — phase, residual, positive, negative or zero sequence — each with its characteristic, pickup as a multiple of nominal current, time multiplier and direction. Standard IDMT, I²T and IAC characteristics are built in with their own constants, and custom curves can be entered as a current-time table. Then add test points on the characteristic view by right-clicking or entering test current and angle. All enabled elements operate in parallel and the combined curve is shown on the resulting characteristic tab — which is what the test is actually judged against, not the individual element curves.Elements on the left, the IDMT equation and its constants below, the resulting curve on the right. Every enabled element operates in parallel, and the combined curve is what the test is judged against.
- 29That the test point cannot be reached with the load current you have set. The point appears as a red circle on the characteristic and the assessment says so explicitly, which is the software refusing to run a test it knows would be invalid rather than producing a misleading number. The fix is to reduce the load current setting. It is worth knowing this is a module constraint and not a relay problem — the point itself is testable, just not with that much prefault load current on top of it.
- 30Set the protected object up first in the Differential tab — transformer, generator, motor or busbar; winding count and reference winding; per-winding power, voltage, CT ratios, vector group and star-point earthing; zero-sequence elimination; and the Ibias calculation model your relay manufacturer uses. Then define the bias curve as inflection points, entered as bias and differential current pairs, with the slope calculated for you. The module tests it by simulating faults inside and outside the protected zone, as either shot tests at chosen points or search tests that hold Ibias fixed and search for the actual Idiff boundary.The bias curve built from inflection points. The dashed bands either side are the tolerance envelope the test points are judged against, so the curve and the pass criteria are defined in one place.
- 31The restraint curve is defined on the Harmonic tab of the differential test object — the harmonic order, the tolerance band, and inflection points entered as ratio and differential current pairs. The dedicated Harmonic Restraint module then tests it, with the same shot and search choice as the main differential test. This matters because inrush restraint is the function most likely to cause a nuisance trip in service and the least likely to have been proved at commissioning; it is a genuine gap in a lot of maintenance routines.
- 32The Reclose module simulates the whole cycle including post-acceleration, using five states in one shot: prefault, fault, post-fault, reclosed and post-acceleration. The Ux channel simulates the line voltage, with settable amplitude, phase angle and reference channel. Binary inputs 1 to 3 take the trip commands, per phase or three-phase, and binary input 4 takes the reclose command. Results come back as three measured times — trip, reclose, and second trip. A permanent-fault option keeps the fault present after reclosing, which is what proves lockout; the module is transient by default.Five states in one shot: prefault, fault, postfault, reclosed, post-acceleration. The trip and reclose binary inputs along the bottom are what turn this into three measured times from a single injection.
- 33The Synchroniser module simulates connecting a generator to the grid. One voltage group is the system side, which is the reference at zero degrees; the other is the generator side, which the software varies. Eight test functions cover it: action voltage, action frequency, angle/time, electric zero, pulse width control on frequency and on voltage, slip acceleration latch, and a full auto-synchroniser. That last one is the closed-loop test — binary inputs 5 to 8 receive the relay's own voltage and frequency raise and lower commands and the software responds to them, which is the only way to prove an automatic synchroniser genuinely works.Two voltage groups simulate the two sides of the breaker. The four binary inputs on the right catch the relay's own raise and lower commands, which is what makes a closed-loop auto-synchronizer test possible.
- 34The Frequency Test module covers both. Under-frequency testing measures the frequency pickup, the operating time at a given frequency, the df/dt rate-of-change response, and the under-voltage and under-current latch behaviour. Under-voltage testing mirrors it — voltage pickup, operating time, dv/dt response and the under-current latch. The rate-of-change functions matter more than they used to: df/dt and dv/dt elements are increasingly used on networks with high renewable penetration, and they cannot be proved with a static injection.
- 35A state sequencer defines a series of output states and steps through them, which makes it the right tool for any time measurement — trip time above all. It offers eleven output modes, per-state binary outputs, and triggers on time, binary input, binary-plus-time, key press, or GPS/IRIG-B. It can also apply linear dv/dt, di/dt and df/dt changes within a state, plus closing angle and superimposed non-periodic components. The manual is explicit about the division of labour: the trip time shown in a ramp result is for reference only and not used for evaluation. For a trip time you intend to report, use a state sequence.
- 36Finding a threshold rather than timing an operation — pickup, drop-off, and anything derived from the two. It works as a table of ramping states, each holding one or more variables with a from value, a to value, a step and a step time. Results appear as ramp measurements, and you can enter a set value with positive and negative deviation for each so the software assesses pass or fail itself. The calculated condition feature is what makes it powerful: measure pickup in one ramp and drop-off in a second, then define the formula result 2 / result 1 and the reset ratio is evaluated automatically.
- 37Yes — that is the Transplay module, and it is the fastest way to settle an argument about why a relay operated. Import the COMTRADE record and it plays back, with manual, binary or GPS triggering. Every voltage and current channel is editable and can be superimposed, channels can be combined arithmetically, outputs are scaled from primary to secondary values, and the original record is interpolated with a selectable algorithm. Sections can be repeated by start time, interval and count. One detail worth knowing: COMTRADE stores peak-to-peak values while the kit always outputs RMS, and the software handles the conversion.
- 38Yes. The Power Swing module models a two-terminal transmission system — generator source, line, system source — and calculates the voltage and current that would appear at the protection's location as the power angle oscillates. The angle can swing between defined start and end angles, or rotate continuously clockwise or counter-clockwise through 360°, for a set number of cycles. A fault can be superimposed on the oscillation. It is used for generator out-of-step protection and out-of-step blocking, and to check whether a system swing will cause distance or zero-sequence line protection to misoperate — which is exactly the scenario that turns a local fault into a wide-area event.
- 39Yes, through two licensed optional modules. The energy meter module calibrates function and accuracy for single-phase, three-phase three-wire and three-phase four-wire meters, using the meter constant, CT and PT ratios, pulse type and count, and settling time, and it records ambient temperature and humidity into the report. It needs a photoelectric conversion sampler connected. The transducer module covers active, reactive and apparent power, frequency, AC and DC current and voltage, power factor and phase, with the characteristic defined by minimum, knee, maximum and saturation points. Both evaluate against tolerances you set.
- 40By timing from fault inception to the trip contact. The kit injects the prefault condition, then applies the fault and starts its timer at the same instant; the relay's own delay logic runs; the trip command arrives at a binary input and the timer stops. The measured time is then compared with the relay's setting to give a pass or fail. Two things govern the accuracy of that number. The binary change must last longer than the deglitch time to be recorded at all. And the prefault state must be long enough for the relay to see healthy conditions and reset — 500 ms minimum is the recommendation for shot tests.Trip time is the interval between fault inception and the trip contact changing state. The prefault state is not optional padding — the relay has to see healthy conditions long enough to reset before the fault arrives, or the measured time is meaningless.
- 41By comparing the measured value with the value it calculated from the test object, against the tolerances you set. Tolerances are entered in two forms — relative as a percentage and absolute as a value — and the rule that matters is that the software takes the larger of the two. That is deliberate and it is the sensible behaviour: a purely relative tolerance becomes absurdly tight near zero, while a purely absolute one becomes meaningless at large values. Both current and time deviations are judged this way. Points that pass are drawn green on the characteristic, points that fail are drawn red.
- 42RTF and PDF for the finished report, following a layout you configure through Report Set, which controls which data blocks appear. There is also an export function for custom report formats to suit a particular customer's requirements. Separately, results save as XML, which is a different thing and more useful than it sounds — see the next answer. Test personnel name and company name are entered once in the software settings and carried into every report, and per-module comments and a modifiable assessment conclusion can be added before the report is generated.The report preview, reachable by clicking the test object in the tree. Parameters, results, verdicts and the characteristic plot all travel into the RTF or PDF output together.
- 43Yes, and this is the feature most worth knowing about. Results save as an XML file that can be reloaded later to view both the results and the template parameters that produced them — so a year later you can see not only what the relay did but exactly what was injected and what settings were assumed. The XML can also be used interchangeably with a .krt template, which means last year's test becomes this year's starting point. For anyone who has ever had to defend a commissioning result, this is the answer that matters.
- 44Which side of the CT and PT the numbers refer to. The toolbar switches the whole display between primary and secondary values, converting automatically using the ratios set in the test object. Secondary values are what the kit physically injects; primary values are what those represent out on the system. There are two more display toggles alongside it: absolute against relative, where relative values are expressed as multiples of the rated value, and seconds against cycles for the time format. All three are display conventions only — none of them changes the test.
- 45The changing states and the operating times of every binary input and output contact through the test. Where a result view gives you the headline number, the event recorder gives you the sequence — which contact changed, in what order, at what time. That distinction matters when a result is not what you expected: a trip that arrived on the wrong phase, a reclose that came before the trip reset, or a signal that chattered rather than operating cleanly are all visible in the event record and invisible in a single measured time.
- 46Each turns red for a specific condition. V,H voltage amplifier overheating. V,I voltage amplifier wrongly connected to an external high-voltage source. V,S voltage output short circuit. I,H current amplifier overheating. P,B power imbalance. L,I low-level output wrongly connected to an external high-voltage source. And IA through IZ for current output open circuit, per channel. Two of these — V,I and L,I — are telling you a wiring error has connected an output to something it must never see, and warrant stopping rather than retrying. The open-circuit alarms only trigger above the detection threshold set in System Config.
- 47That Apply was pressed in System Config while the kit was not connected. The configuration exists in the software but has not reached the hardware, so the kit is still running whatever it had before — which is the dangerous part, because the software will show your intended settings while the kit outputs something else. Re-establish the connection, check the status indicator reads Connected with the kit's IP address, then press Apply again and confirm it succeeds before running any test.
- 48Work through it in this order. Is the trip contact wired to the binary input the module is actually watching, and is that input enabled in the trigger logic? Is the trigger logic set to OR when you meant OR — an AND across several inputs will not fire on one contact. Is the binary input's contact type right for the signal, potential free against threshold triggering? Is the deglitch time longer than the pulse the relay produced? And if the trigger mode is set to accept only a rising or only a falling edge, does the contact actually move in that direction?
- 49Power up the kit and establish the connection first. Open the Upgrade window, load the new firmware package, and press Upgrade. Then leave it alone: the manual is emphatic that the power and communication connection must not be disconnected during the process. The software verifies the package against the connected model before it runs, and will refuse an incompatible version rather than attempting it — which is the protection you want, since a mismatched firmware load is the one thing that turns a test kit into a paperweight. It restarts itself when it finishes.
- 50Through a licence certificate. The licence page shows which feature licences are currently authorised, and importing the new certificate you receive with the purchase activates the additional module. No reinstallation and no return to the factory — which means a kit bought for protection testing can be extended to energy meter or transducer calibration later, without replacing hardware.
- 51Annual calibration against a traceable standard is the usual expectation for test and measurement equipment in utility service, and tender specifications frequently require a valid certificate at supply. The software includes a calibration function, but note the manual's restriction — it is for authorised personnel only and is not a user-accessible routine.
- 52Treat it as a source, not a meter. The relay under test must be isolated from the live CT and PT circuits before anything is injected, or you are back-feeding the substation — and an open-circuited live CT is the single most dangerous thing in a protection panel. Earth the kit. Confirm the auxiliary DC level before energising a relay from it. Check where the trip output actually goes before allowing the relay to operate, because a trip signal reaching a real breaker during a test is not a theoretical risk. Normal permit-to-work and isolation practice applies throughout.
- 53KPM provides hands-on training at your site as part of supply, or as a separate chargeable visit, covering the modules your team uses on your own relays. Call 0124 4001088 or email sales@kpmtek.com to arrange it, or to request a demonstration.Reach us on 0124 4001088 or sales@kpmtek.com, 10 AM to 6 PM IST on working days.
- 54Yes, we provide support in building templates for the relay types on your system as part of commissioning, and hands-on operator training at your site. State whether this is included in supply or chargeable, and whether it covers one location or several. ] Templates are where the time saving in this software actually lives, so getting the first few right is worth more than any amount of manual reading.
- 55Save the XML result and send it to sales@kpmtek.com with the relay details. Because the XML carries both the results and the template parameters that produced them, our engineer can see exactly what was injected and what was assumed — which usually settles it without a site visit. This is the support customers use most. Typical response: 10 AM to 6 PM IST on working days.
- 56
- 57
- 58Yes. Repairs are carried out at the KPM service centre, and we arrange calibration with a traceable certificate. Contact us with the serial number and the issue, and we will confirm the turnaround before any work starts.Call first: many reported faults turn out to be a connection, a setting or a site supply problem that we can solve over the phone the same day.
- 59The relay test kit is warranted against defects in materials and workmanship for twelve months from dispatch. Within that period we repair or replace any unit that fails in normal service at no charge.Call us before opening the instrument, because opening the case voids the warranty. The warranty covers failure, not damage: physical damage, water ingress, repair or modification by others, consumables, and connecting high voltage or high current directly to the analyzer are excluded. Application support continues for as long as you own the instrument.
bottom of page