HV circuit breaker analyzer PKV/M17

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Monitoring the technical condition of main contacts and pre-insertion resistors (PIR) up to 6 breaks

Measurement of time, travel, and speed parameters simultaneously across 3 poles

Measurement triggering methods

Monitoring closing / opening moments of contacts with pre-insertion resistors (PIR)

Adaptation for various types of circuit breakers

View and analysis of measurement results

Dynamic resistance measurement with the DCRT-200

Work with diagnostic results, device control and data transfer on PC

Proper operation in all weather conditions

The device measures time, travel, and speed parameters of the moving parts of SF6, oil, vacuum, and electromagnetic circuit breakers rated from 6 to 500 kV simultaneously across 3 poles and up to 6 breaks per pole, as well as the time parameters of isolators and short-circuiters.

The following measurements and operations can be performed simultaneously:

response time measurement for main contacts and pre-insertion resistors;
current analysis of closing and tripping coils up to 30 A;
displacement measurement using angular and linear displacement transducers.

PKV/M17 enables reliable measurement of the time, electrical, and kinematic characteristics of circuit breakers, ensuring effective diagnostics of their technical condition.

Parameter	PKV/M17	PKV/M7	PKV/M15M
SF6/oil/vacuum/electromagnetic
Switching test current, max	30A	14A	20A
Number of discrete channels for monitoring circuit breaker contacts	6	4	3
Number of displacement transducer channels	3	1	1
First Trip mode
Control of pre-insertion resistors
Trip-free mechanism testing
Anti-pumping mechanism testing
Endurance tests of circuit breakers

PKV/M17 enables to measure the time parameters to closing / opening of the controlled contacts, isolators, and short-circuiters – simultaneously across 3 poles (up to two breaks per pole) or across 1 pole (up to 6 breaks per pole), in the range from 0.01 to 200 seconds at intervals of 0.05, 0.1, and/or 1 second.

In addition to monitoring time parameters, the PKV/M17 measures speed (up to 20 m/s) and travel (up to 900 mm) parameters of moving parts of circuit breakers using incremental (discrete) and rheostatic transducers.

In standard complete set:

Linear displacement transducer DP12 – for measuring the displacement of moving parts in high-voltage circuit breakers. Range – 1 - 900 mm. Resolution – 0.5 mm, accuracy ±1 mm.
Angular displacement transducer DP21 – for measuring the angle of shaft turn in high-voltage circuit breakers. Measuring range – 0 - 360°. Resolution – 0.09°, accuracy ±0.56°.

In additional complete set (on order):

Rheostat transducer DP32 – for measuring the linear displacement of vacuum circuit breakers with open insulated housing in the range 0.2 - 20 mm. Accuracy ±0.2 mm.

Note: When the device is equipped with three transducers of the same type, speed and travel parameters can be monitored simultaneously across 3 poles.

Depending on the task, the user can choose between an internal triggering method or one of the external triggering methods:

Based on the state of any auxiliary contact channel;
Based on the state of any pole channel;
Based on the setting of an analog channel (voltmeter channel, current measurement channels, current clamp channels);
Based on the status of the incremental displacement transducer.

PKV/M17 provides precise monitoring of closing / opening moments of contacts with pre-insertion resistors (PIR), enabling a detailed analysis of the switching device’s operation. This function measures the time parameters of PIR contact response in relation to the circuit breaker’s main contacts with high accuracy.

The device allows users to promptly detect faults in the operation of PIR contacts, such as out-of-sync response or changes in time characteristics. This helps prevent insulation damage and extend the equipment's service life.

This function improves diagnostic accuracy and monitoring reliability, making it possible to optimize maintenance and reduce the risk of malfunctions.

PKV/M17 instrument is complete with attachment devices for the installation of measuring transducers on all types of high-voltage circuit breakers (ABB, AREVA, ALSTOM, SIEMENS, etc.).

If any specific attachment devices or measurement templates are required for your object, we are ready to participate in their development, manufacture and testing.

This ensures correct connection of the device and accurate measurements, even for equipment with a non-standard design.

The object diagnostic results are displayed as data with measured and calculated parameters for each operation of the cycle. When processing measurement results for complex cycles, the device automatically breaks the cycle down into simple operations.

The results include such data as:

travel parameters: stroke, travel until pole contacts closing, contact wipe, pole discrepancy, bouncing in travel, overtravel, rebound;
time parameters: circuit breaker opening time, circuit breaker closing time and pole closing time, time difference in contact response, and bouncing in time;
speed parameters: closing speed, and speed calculations for different sections.

Using special templates, the user can specify the nominal values for the measurement object. If the measured value differs from the nominal value, the device will highlight it.

More detailed information on the circuit breaker status can be derived from recorded graphs, that are navigated using cursors and scaling.

PKV/M17 is designed for diagnosing high-voltage circuit breakers and monitoring time, speed, and travel parameters, identifying deviations in the mechanism’s operation.

To expand diagnostic capabilities, the PKV/M17 can be combined with the DCRT-200 tester, which enables dynamic contact resistance measurements. This can further identify defects in the contact system, such as wear, burning, and erosion of electrical contact.

PKV/M17 is an independent device for diagnostic and data analysis, which does not require third-party equipment. All settings, calculations and graphics can be performed on a display.

In addition, the device can be controlled by a PC and used as a measuring unit or a data storage device, with data transferable directly to a PC or a USB flash drive. The software is currently under development.

If you have to carry out diagnostic in difficult weather conditions you can be sure that PKV/M17 will provide you with the most accurate results as it operates properly in the temperature range from -20°С to +50°С.

Specifications	Value
Measuring and recording range of time intervals	0.001 – 200 s
Accuracy	±10-4[1 + tx] s, where tx is the measured time interval
Measuring range of linear displacement	1 – 900 mm
Accuracy	±[1+0.0005*Sx] mm, where Sx is the measured distance
Measuring range of angular displacement	0.2° – 360°
Accuracy	±[0.2 + 0.001*ax]°, where ax is the measured angle
Measuring range of speed	0.002 – 20 m/s
Accuracy in the range of 0.02-10 m/s	±2 %
Power switch cycles	O, C, O-P-C, C-Tdo-O, O-P-C-Tdo-O P - optional pause Tdo - time delay of open
Maximum switching current	±30 A
Input voltage measurement range "Control module voltage"	350 V
Voltage measurement range by "Analog input" channel	0 – 12 V (unipolar mode) ±6 V (bipolar mode)
Resistance measuring range by "Analog input" channel	0 – 160 Ω (output current 60 mA) 0 – 2500 Ω (output current 4 mA)
Power supply	100-242 V AC, 49.5-60.5 Hz
Power supply	100-340 V DC
Consumed power	60 W
Dimensions	360 х 290 х 165 mm
Test block weight	7 kg
Environmental protection	IP 64 (with closed cover) IP 40 (with open cover)
Operating temperature	from -20°C to +50°C
Warranty	13 months
Calibration period	1 year
User manual, Interface language	English

Standard complete set:

Photo	Item, Index	Application
Main instrument PKV/M17 047.00.00.000	Main instrument PKV/M17 047.00.00.000	Instrument and additional documents: Calibration Certificate, User Manual, Log Book.
Angular displacement transducer DP21 009.00.00.000	Angular displacement transducer DP21 009.00.00.000	For measuring the angle of shaft turn in high-voltage circuit breakers. Measuring range: 0.2 – 360°. Resolution: 0.09°.
Linear displacement transducer DP12	Linear displacement transducer DP12	For displacement measurement of moving parts in high-voltage circuit breakers. Range: 1 – 900 mm. Resolution: 0.5 mm. To be used together with a measuring stick.
Measuring stick 012.03.00.000-02	Measuring stick 012.03.00.000-02	Measuring stick in a case. To be used together with linear displacement transducer DP12 (length on order – 550 mm, 700 mm and 1,000 mm).
Attachment devices set to install transducers on circuit breakers	Attachment devices set to install transducers on circuit breakers	For attachment of DP12 and DP21 transducers to various types of circuit breakers.
Transducer cable 047.20.00.000	Transducer cable 047.20.00.000	For connecting linear (DP12) or angular (DP21) displacement transducer to the instrument. Length: 7 m.
Pole cables 047.11.00.000К	Pole cables 047.11.00.000К	For connecting to the pole of high-voltage circuit breaker. The cable is equipped with Сrocodile clamps. Length: 7.5 m.
Control unit cable 047.19.00.000К	Control unit cable 047.19.00.000К	For connecting to the control circuits of a high-voltage circuit breaker. Length: 5 m.
Mains cable 018.09.00.000	Mains cable 018.09.00.000	Mains cable 1 x 2 m. For instrument connection to the mains. Temperature range: -25°C to +45°C. Rubber insulation.
Ground cable 010.01.00.000	Ground cable 010.01.00.000	Ground cable 1 x 2 m (0.07 kg) for instrument grounding. The cable is equipped with a C-clamp and a screw end cap. Rated current is 50 А.
LAN cable 024.26.00.000	LAN cable 024.26.00.000	For connecting the instrument to the computer network or laptop. Length: 2 m.
Fuse 0505020 МХЕР (2 pcs.)	Fuse 0505020 МХЕР (2 pcs.)	For the drive control connectors.
Fuse VP2B-1V-2 А (2 pcs.)	Fuse VP2B-1V-2 А (2 pcs.)	For the power source protection.
Tool bag 147.06.00.000	Tool bag 147.06.00.000	Convenient, robust, wear proof bag for transportation of cables, documentation and other accessories.

Additional complete set for simultaneous monitoring across 3 phases (on order):

Photo	Item, Index	Application
Angular displacement transducer DP21 (2 pcs.) 009.00.00.000	Angular displacement transducer DP21 (2 pcs.) 009.00.00.000	Two additional transducers (DP12 and/or DP21) allow you to simultaneously measure the travel and speed parameters of the circuit breaker across all 3 phases (includes Log Book and Calibration Certificate). Measuring range: 0.2 – 360°. Resolution: 0.09°. Standart complete set includes DP21 transducer (1 pc.).
Linear displacement transducer DP12 (2 pcs.) 012.00.00.000	Linear displacement transducer DP12 (2 pcs.) 012.00.00.000	Two additional transducers (DP12 and/or DP21) allow you to simultaneously measure the travel and speed parameters of the circuit breaker across all 3 phases (includes Log Book and Calibration Certificate). To work with transducers, measuring sticks are required (see below). Range: 1 – 900 mm. Resolution: 0.5 mm. Standart complete set includes DP12 transducer (1 pc.).
Measuring stick (2 pcs.) 012.03.00.00/-01/-02	Measuring stick (2 pcs.) 012.03.00.00/-01/-02	Two additional measuring sticks are required when using DP12 transducers for displacement measurement of moving parts in high-voltage circuit breakers across all 3 phases simultaneously. Measuring stick in a case. Length on order – 550 mm, 700 mm and 1,000 mm. Standart complete set includes 1 measuring stick 700 mm.
Transducer cable (2 pcs.) 047.20.00.000-01/-02	Transducer cable (2 pcs.) 047.20.00.000-01/-02	For connecting linear (DP12) or angular (DP21) displacement transducer to the instrument. Standard complete set includes 1 pc. Length: 7 m.

Additional complete set (on order)

Photo	Item, Index	Application
Rheostat transducer DP32 026.22.00.000	Rheostat transducer DP32 026.22.00.000	For measuring the linear displacement of vacuum circuit breakers with an open insulating housing in the range of 0.2 – 20 mm. Accuracy is ±0.2 mm. It is used complete with adapter 026.24.00.000.
Pole cable 047.11.00.000К	Pole cable 047.11.00.000К	Additional pole cables 7.5 m with jaw up to 50 mm for circuit breakers with two open circuits per phase.
Pole cable extension 058.07.00.000К	Pole cable extension 058.07.00.000К	A set of extensions to lengthen standard complete set pole cables. Length: 5 m.
Drive power supply 053.13.00.000	Drive power supply 053.13.00.000	For controlling DC and AC drives during internal triggering and spring winding in high-voltage circuit breaker drives. Supplied together with cable 047.19.00.000 (2 pcs.). Length: 5 m.
Auxiliary channel cable 047.23.00.000	Auxiliary channel cable 047.23.00.000	"For recording the moments when electrical voltage is applied/removed, and for the closing/opening moments of various contacts on the circuit breaker drive. Length: 5 m"
Auxiliary channel extension cable 047.24.00.000	Auxiliary channel extension cable 047.24.00.000	For placing the PKV/M17 device more than 5 meters away from the circuit breaker drive. Length: 5 m
Transducer cable extension 047.18.00.000К	Transducer cable extension 047.18.00.000К	For extending the length of the transducer cable. Length: 5 m.
Attachment devices set to install transducers on circuit breakers	Attachment devices set to install transducers on circuit breakers	Additional attachment devices for attaching DP12 and DP21 transducers to all 3 phases simultaneously (clamps, mounting plates, adapters, etc.). Can be purchased separately or on order.
Calibration cable for analog transducers 047.41.00.000	Calibration cable for analog transducers 047.41.00.000	Cable 1 x 1.5 m for calibrating analog transducers channels is designed to check the metrological characteristics of the analog transducers channels on the PKV/M17 instrument during testing or calibration.
Attachment devices set kit 126.06.02.00	Attachment devices set kit 126.06.02.00	Tool bag for attachment devices

Recommended accessories:

Photo	Item, Index	Application
Manipulating rod 010.41.00.000К	Manipulating rod 010.41.00.000К	Manipulating rod is designed for test cables connection from the ground or from the tank cover to the bushings of high-voltage circuit breakers, and to the structural elements of high-voltage disconnecting switches and earthing devices, without the use of ladders or elevated platforms. The manipulating rod is completed with special extension cables 3.3 m. There is a Kelvin clamp with current and potential contacts to connect to the object on one side, and a contact pad on the other side. The device test cable is connected to the contact pad from the ground or a tank cover. Manipulating rod extension cable is made according to a four-wire (Kelvin) scheme with the test current capacity of 100 A in the presence of a good contact. Manipulating rod - 2.2 (length 2.2 m / weight as an assembled set 3.4 kg); Manipulating rod - 3.7 (length 3.7 m / weight as an assembled set 4.0 kg); Manipulating rod - 5.1 (length 5.1 m / weight as an assembled set 4.6 kg).

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