Máy phân tích máy cắt SKB PKV/M7 (4 kênh) | EMIN.VN

Máy phân tích máy cắt SKB PKV/M7 (4 kênh)

Name: Máy phân tích máy cắt SKB PKV/M7 (4 kênh)
Brand: SKB EP

Hãng sản xuấtSKB EP(Xem thêm sản phẩm của hãng)

ModelPKV/M7

Liên hệ

Số lượng

Thanh toán an toàn

Hỗ trợ chuyên nghiệp

Đổi trả dễ dàng

Giao hàng tận nơi

Model : PKV/M7

Hãng Sản Xuất : SKB

Xuất xứ : Nga

Sử dụng cho máy cắt dầu, máy cắt chân không, máy cắt SF6, máy cắt nam châm điện
Số kênh giám sát tiếp xúc của máy cắt, pcs: 4
Phạm vi đo lường và ghi của khoảng thời gian, sec: 0.002 ÷ 5.2
Sai số, ms: ±[0,1 + 0,0001*Тх], trong đó Тх – khoảng thời gian đo
Phạm vi của chuyển động tuyến tính đo bằng đầu dò DP12, mm: 0.5 ÷ 900
Độ phân dải của chuyển động tuyến tính đo bởi đầu dò DP12, mm: 0.5
Sai số phép đo của chuyển động tuyến tính đo bởi đầu dò DP12, mm: ±1
Phạm vi của các góc chuyển động đo bởi đầu dò DP21 , độ: .09 ÷ 360
Độ phân dải của góc chuyển động đo bới đầu dò DP21, độ: 0.09
Sai số góc chuyển động đo bới đầu dò DP12, mm: ±[0,2 + 0,001*a], trong đó a là phạm vi chuyển động
Đo phạm vi tốc độ di chuyển, m/sec: 0,002 ÷ 20
Sai số tối đa của tốc độ di chuyển đo bởi đầu dò DP12 trong dải 0.02 ÷ 10 m/sec, %: ±2
Chu kỳ chuyển mạch động lực "Open", "Close", "Open-Pause-Close", "Close-Delay-Open", "Open-Pause-Close-Delay-Open
Phạm vi dòng điện cho chuyển mạch on/off channels (giá trị đỉnh), А: ±14
Mức đáp ứng của dòng điện bảo vệ chuyển mạch động lực, А 15 ÷ 20
Dải đo điện áp trên "Switch voltage" vào (giá trị đỉnh), V: ±350
Dải đo điện áp bởi"Analog vào" kênh (giá trị đỉnh), V: 0 ÷ 12 (Chế độ đơn cực), ±6 (Chế độ lưỡng cực)
Dải điện trở"Analog vào" kênh, Ohm: 0 ÷ 160 Ohm; (Dòng điện ra 60 mА); 0 ÷ 2500 Ohm (dòng điện ra f 4 mА)
Kiểu truyền dữ liệu: RS-232C, RS-485, USB, Ethernet IEEE 802.3
Công suất tiêu thụ max, W: 60
Nhiệt độ hoạt động, ºС: -20 ÷ +50
Trọng lượng, kg: 7
Kích thước, mm: 360х290х165
Giao diện: English
HDSD: English
Chu ỳ hiệu chuẩn 3 năm
Cung cấp kèm theo:
- Máy, chứng chỉ hiệu chuẩn của hãng, HDSD, sách ghi chép, phần mềm
- Đầu dò chuyển động tuyến tính DP12: để đo chuyển động của bộ phận ngắt mạch trong máy cắt cao áp
- Bộ chuyển đổi đo góc chuyển động DP21: để đo các góc rẽ trục cho bộ ngắt mạch cao áp
- Que đo (dài – 700 mm)
- Cáp chuyển đổi. Để kết nối (DP 12) hoặc (DP21) với máy, p cách điện silicon (chiều dài - 7 m)
- Cáp các cực A, B, C, D (4 cái) Để kết nối với các cực của máy cắt cao thế, có kẹp cá sấu, cách điện silicon, Họng Ø - 30 mm (chiều dài - 11 m).
- Cáp công tắc nguồn vào
- Cáp khởi động từ xa: Để khởi động từ xa kết nối drives của nam châm điện máy cắt, cách điện cao su (dài 5m)
- Cáp định vị khởi động: Để kết nối với drive của máy cắt. Được trang bị với các loại cá sấu kẹp. Dòng điện - 50А. cách điện - silicone (chiều dài - 2,5 m).

Catalog

Maintenance check of oil, vacuum and SF6 breakers with up to 4 breaks

Maintenance check of switches of Soviet-, Russian- and foreign-manufactured (ABB, AREVA, ALSTOM, SIEMENS, etc.) circuit breakers:

Checkout of speed and travel parameters of oil, vacuum and SF6 high-voltage circuit breakers with 4 poles;
Checkout of time characteristics of high-voltage disconnecting, isolating and short-circuiting switches;
Measuring of electromagnet currents and voltages and solenoid heavy currents with the help of clamp meters;
Built-in remote control for setting of ordinary operations and compound cycles for circuit breakers with the current of up to 14A for DC/AC drives.

Diagnostics of domestic and foreign circuit breakers

PKV/M7 instrument is complete with attachment devices for the installation of measuring transducers on all types of Russian- and foreign-manufactured (ABB, AREVA, ALSTOM, SIEMENS, etc.) high-voltage circuit breakers. Adaptability of the instrument involves designing of transducer attachments to the circuit breakers and receiving of transfer function of movement from the shaft to the cross-arm. Transfer functions of kinematic chains of all circuit breakers are stored in the memory of the instrument. Adaptation work began with the first produced model of the instrument (PKV/М1) in 1995 and continues to this day.

Ranges of time intervals, speed and travel measurement sufficient for covering the needs for monitoring of existing circuit breakers

Wide ranges of measurement by time (up to 5.1 sec), speed (up to 20 m/sec) and travel (up to 900 mm), covering the needs for monitoring of all existing high-voltage circuit breakers. For instance, the smaller time range of similar instruments does not allow for monitoring the operation of circuit breakers in compound cycles.

There are a number of nuances at measurement performance. For example, while registering of time characteristics of any high-voltage circuit breaker is quite a simple process, receiving of travel and speed characteristics can be performed only with the use of special linear and angular movement transducers.

PKV/M7 is supplied with incremental (discrete) transducers for measurement of speed characteristics and travel parameters which do not require adjustment or correction of conversion factors; these transducers provide accurate results and are convenient in service.

Instruments with wire rope transducers, for instance, have a limited upper value for speed. Pull-back spring of these transducers does not have enough time to reel the wire rope onto the drum in case of rapid change of speed and measurement results become less accurate. It is not recommended to use laser movement transducers as there is a risk of eye damaging by the laser beam in case of mishandling. Moreover, laser transducer is installed by sight without any fixing devices which contributes to bigger measurement errors.

High measurement accuracy

High measurement accuracy when measuring time characteristics (±0.1 ms), as well as travel and speed characteristics is ensured by digital angular and linear movement transducers with the accuracy grade of 0.09° and 0.5 mm. Potentiometer-based transducers usually used in other instruments similar to PKV/M7 have poor accuracy (of up to 1%) even in normal conditions. With the maximum travel of 900 mm. it gives measurement uncertainty of ±9 mm.

Automatic calculation of technical characteristics of high-voltage circuit breakers

The expanded set of time, travel and speed characteristics both for drive shaft and contacts as well as of voltages and currents of electromagnets and solenoid of the drive: time diversity, bounce durability, delay, rebound and transfer, medium velocities at various sections of travel, etc.

Apart from numerical data this instrument provides graphical results which allow detecting of incipient defects

Along with the tables of digital values of parameters more detailed information on the circuit breaker condition can be obtained from the following registered graphs of processes:

relation between speed and time, speed and travel;
relation between electromagnet currents and voltages, and time and travel;
diagrams of contact opening-closing.

The type of graphs is defined by the state of all parts (levers, springs, drafts, axes, cross-arms, damper, etc.) of the kinematic chain of the mechanism regulating opening-closing of circuit breaker contacts. Malfunction of any part of the mechanism (play increase, spring slackening, excessive friction, damper failure, etc.) immediately changes the type of graph from the normal type meant for properly functioning circuit breaker. SKB EP has developed a special method of graph analyzing which when applied provide for early in-place diagnostics of the state of the circuit breaker.

Monitoring of high-voltage circuit breakers in simple and compound cycles

PKV/M7 switch allows for monitoring of circuit breakers both in simple and compound cycles of switching with electromagnet currents of up to 14А (direct and alternate) with setting of the required duration of impulses of switching close/open and pause/delay of switching open.

Special mode “ruler/angle meter” simplifying the process of circuit breaker adjustment

It is often required to check circuit breakers by performing their switching on not from the drive but, for instance, from a jack. For this purpose PKV/M7 has a mode “ruler/angle meter”, in which the instrument shows real-time value of circuit breaker travel (shaft turn angle) or the status of contacts (close/open).

Proper operation in all weather conditions

If you have to carry out diagnostics in difficult weather conditions you can be sure that PKV/M7 will provide you with the most accurate results as it operates properly in the temperature range from -15 to +50°С.

Specifications	Value
Number of channels for circuit breaker contacts monitoring, pcs.	4
Range of measurement and recording of time intervals, sec	0.002 ÷ 5.2
Maximum permissible intrinsic error of time interval measurement, ms	±[0,1 + 0,0001*Тх],where Тх – measured time interval
Range of linear movements measurement by DP12 transducer, mm	0.5 ÷ 900
Resolution of linear movements measurement by DP12 transducer, mm	0.5
Maximum permissible intrinsic error of linear movements measurement by DP12 transducer, mm	±1
Range of angular movements measurement by DP21 transducer, degree	0.09 ÷ 360
Resolution of angular movements measurement by DP21 transducer, degree	0.09
Maximum permissible intrinsic error of angular movements measurement by DP12 transducer, mm	±[0,2 + 0,001*a], where a – measured movement
Range of moving speed measurement, m/sec	0,002 ÷ 20
Maximum permissible intrinsic relative error of speed measurement by DP12 transducer in the range of 0.02 ÷ 10 m/sec, %	±2
Power switch cycles	"Open", "Close", "Open-Pause-Close", "Close-Delay-Open", "Open-Pause-Close-Delay-Open
Range of current measuring for switch on/off channels (peak value), А	±14
Response level of power switch current protection, А	15 ÷ 20
Range of voltage measurement on "Switch voltage" input (peak value), V	±350
Range of voltage measurement by "Analog input" channel (peak value), V	0 ÷ 12 (monopolar mode), ±6 (bipolar mode)
Resistance range of "Analog input" channel, Ohm	0 ÷ 160 Ohm; (output current of 60 мА); 0 ÷ 2500 Ohm (output current of 4 мА)
Types of data transfer channels	RS-232C, RS-485, USB, Ethernet IEEE 802.3
Maximum consumed power, W	60
Operation temperature range, ºС	-20 ÷ +50
Maximum measuring unit weight, kg	7
Dimensions, mm	360х290х165
Interface language	English
User manuals language	English
Calibration interval, year	3

Standard complete set

Photo	Item, Index	Application
	PKV/М7 measuring unit SKB026.00.00.000	Instrument and accompanying documents: calibration certificate, operation manual, record book, software / user manual.
	Linear movement transducer DP12 SKB012.00.000-02	For measuring of moving parts movement in high-voltage circuit breakers (set includes data sheet and calibration certificate). Range – 0 ÷ 900 mm. Resolution – 0.5 mm. Used together with a measuring stick.
	Measuring stick SKB010.15.00.000-02	Measuring stick in a box. Used together with linear movement transducer DP12 (length – 700 mm // on order – 550 mm and 1,000 mm).
	Angular movement transducer DP21 SKB009.00.00.000	For measuring of shaft turn angle in high-voltage circuit breakers (set includes data sheet and calibration certificate). Measuring range – 0 ÷ 360°. Resolution – 0.09°.
	Transducer cable SKB010.06.00.000-01	For connecting linear (DP12) or angular (DP21) movement transducer to the instrument. Cable insulation – silicone (length – 7 m // on order – 12 m).
	А, В, C, D poles cables(4 pcs.) SKB010.05.00.000	For connecting to the pole of high-voltage circuit breaker. Equipped with alligator type end caps. Cable insulation – silicone. Throat Ø - 30 mm (length – 11 m).
	Cable end caps (8 pcs.) SKB021.26.00.003	For connecting to the drive of the high-voltage circuit breaker in case it is not convenient to connect to the screws of the drive strip through alligator type end caps.
	Switch input voltage cable SKB026.15.00.000	For commutated voltage supply. Rated current – 50А. Cable insulation – silicone (length – 2 m).
	Remote start cable SKB021.26.00.000	For remote start of measuring processes of the instrument. Connected to the drives of high-voltage circuit breaker electromagnet. Rubber insulation (length – 5 m).
	Local start cable SKB026.16.00.000	For connecting to the high-voltage circuit breaker drive. Equipped with alligator type clamps. Rated current – 50А. Cable insulation – silicone (length – 2.5 m).
	Resistance measurement cable SKB026.18.00.000	For measuring resistance in the range between 0 ÷ 240 Ohm and 0 ÷ 2.5 kOhm. Equipped with M5 screw end caps (length – 2.5m).
	Mains cable SKB018.09.00.000	For connecting the instrument to the power line. Temperature range – 25°С ÷ +45°С. Rubber insulation (length – 2 m).
	LAN cable SKB024.26.00.000	For connecting the instrument to the computer network or notebook (length – 2 m).
	Ground wire SKB010.01.00.000	For PKV/M7 case grounding. Equipped with a ground clamp and screw end cap. Rated current – 50А (length – 1.75 m).
	Attachment devices set	For attachment of DP12 and DP21 transducers