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CABLE TEST
BRIDGE
KMK 7
)
Hz)
Ω
kΩ
VA
e
Copper Cable
Test Equipment
Phone 02 9972 9244 Fax 02 9972 9433
Unit 1, 176 South Creek Road, Cromer NSW 2099
Email sales@sebakmtaus.com www.sebakmtaus.com
Advanced Utility Solutions Pty Ltd. T/A.
KMK 7 Da
Application Main Menue Fea
The KMK 7 is a computerized automatically balanced fault All feasible measurements and possibilities are listed in the
location bridge with integrated acceptance and series tests. “Main menue”. The individual measurements are selected by Mic
The splash-proof design makes the instrument especially suit- operating the corresponding key. aut
able for rough field use. The excellent sensitivity makes it an Ind
ideal test set for measurements on trunk and local cables. For and
acceptance tests, using the KMK 7, the insulation resistance,
loop resistance, resistance difference, mutual capacitance and Eas
interference voltages can be measured. The unit is specially Inp
designed for easy fault location and acceptance tests. tem
Measurement of insulation resistance, loop resistance and DC- Sto
fault location can be called up via special keys. All other mea-
RS
surements are activated via main- and submenus. In addition
to the automatic balancing facility, the KMK 7 can also be bal- Pow
anced manually. The DC-fault location can be carried out with exte
the Murray Loop B, the Double Bridge Loop and the Three
Spl
Point Method. For measurements according to the “Double
wa
Bridge Loop” the switching at the cable end (open and short
circuit) can be carried out automatically with the remote switch Fau
FGK 1. Measurement display –M
All DC-fault location measurements are indicated as a resis- Standard cable length of 10,000 m –D
tance measurement, a length measurement or as a percentage –T
lx distance to the fault position
of the cable length. For cables with sections of different con- a
ly distance from fault position to the cable end
ductor diameters, the cable section and the conductor diame-
Mw average value –R
ter have to be entered. The KMK 7 automatically indicates the
section number and the distance to the fault from the near end. –B
The cable test set KMK 7 is suitable for AC- and DC-fault loca- – Lo
tion on loaded and unloaded cables.
Ma
– in
–c
– lo
– re
–m
– in
Phone 02 9972 9244 Fax 02 9972 9433
Unit 1, 176 South Creek Road, Cromer NSW 2099
Email sales@sebakmtaus.com www.sebakmtaus.com
Advanced Utility Solutions Pty Ltd. T/A.
Data of the KMK 7
Features Technical Data:
the
by Microprocessor-controlled measurement with DC Fault Location:
automatic balancing facility Measuring Murray Loop B
Indication of the test circuit, test procedure modes for Double Bridge
and test results on the graphic LCD-display shorts and Three Point
shunts:
Easy menu-driven operation
Measuring loop resistance up to 14 kΩ
Input of the cable temperature or range: fault resistance up to 100 MΩ
temperature measurement via test sonde
Test voltage: a) 100 V DC; (Ri = 60 kΩ)
Storage of test results b) 500 V DC; (Ri = 300 kΩ)
RS 232 serial link Sensitivity: 0.25 µV / Bit
Power supply by NC-accumulator, Resolution: 10 –5 of twice the cable length
external 12 V DC or mains supply Accuracy: 0.1 % ±1 Digit (of cable length)
Splash-proof with cover open,
waterproof with cover closed AC Fault Location:
Fault location measurements as per: Measuring 200 m up to100 km
– Murray Loop B range: Rmin ≥ 100 kΩ
– Double bridge method Test a) 200 m up to 10 km
voltage: Ueff = 16 Vss; f = 77 Hz;
– Three point method for high-
Ri = 100 kΩ
and low ohmic shunts
b) 2 km up to 100 km and
– Resistance discontinuities loaded cables:
– Breaks Ueff = 50 Vss; f = 4.5 Hz;
Ri = 400 kΩ
– Loaded und unloaded cables
Sensitivity: 50 µV/ Bit
Maintenance and series tests
Resolution: a) f = 4.5 Hz: 0.05 ‰
– insulation resistance of cable length
– conductor/pair identification b) f = 77 Hz: 0.2 ‰
of cable length
– loop resistance
Accuracy: 0.5 –1 % ± 1 Digit (of cable length)
– resistance difference
– mutual capacitance
DC Interference Voltage:
– interference voltage
Measuring up to 100 V (Re > 10 MΩ)
range:
Accuracy: 2.5 % ±1 Digit
(of measuring range)
AC Interference Voltage:
Measuring up to 60 Vss (Re > 10 MΩ)
range:
Accuracy: 5 % ±1 Digit (of measuring range)
Phone 02 9972 9244 Fax 02 9972 9433
Unit 1, 176 South Creek Road, Cromer NSW 2099
Email sales@sebakmtaus.com www.sebakmtaus.com
Advanced Utility Solutions Pty Ltd. T/A.
CABLE TEST BRIDGE KMK 7
Technical Data:
Resistance:
Measuring range: up to 14 kΩ (loop resistance)
Test voltage: 100 V DC; Ri = 60 kΩ
Measuring mode: bridge measurement (auto)
Sensitivity: 0.25 µV / Bit
Rs
Resolution: 105 Technical Data:
Accuracy: 0.1 % ±1 Digit
(of measuring range)
Mutual Capacitance:
Resistance difference (WU) : Measuring range: a) 2 nF up to 2 µF (f = 77 Hz)
Measuring range: a) up to 10 % of Rs b) 200 nF up to 15 µF (f = 4.5 Hz)
b) up to 50 % of Rs Test voltage: a) f = 77 Hz; 16 Vss; Ri =100 kΩ
Test voltage: 100 V DC; Ri = 60 kΩ b) f = 4.5 Hz; 50 Vss; Ri =300 kΩ
Measuring mode: bridge measurement (auto) Resolution: a) 0.1 nF (meas. ≤ 500 nF)
Sensitivity: 0.25 µV / Bit f = 77 Hz
Resolution: Rs b) 0.5 nF (meas. ≤ 5 µF)
105
Accuracy: 0.02 % ±1 Digit (of Rs ) f = 4.5 Hz
Accuracy: 0.5 – 3 % ±1 Digit
Insulation Resistance: of measuring range
Measuring a) Test mode
modes: b) Limit indication 3/30 GΩ General Data:
c) Bridge meas. up to 100 GΩ Permissible ambient temperature:
Test voltage: a) 100 V DC; Ri = 60 kΩ Nominal operating temp.: –10 °C …+50 °C
b) 500 V DC; Ri = 300 kΩ Operating temp. limits: –15 °C … +55 °C
Accuracy 5 –15 % ±1 Digit (of measur. range) Transport and
storage temp.: –25 °C … +60 °C
Resistance discontinuity: Power Supply: a) 210 V … 250 V AC;
Measuring range: above 5 Ω (>10 % of Rs ) 50 – 60 Hz; 115 V opt.
Measurements: AC- and DC-fault location b) Internal NC-accu;
in combination 6 – 8 h cont. operation;
Accuracy: 2 % ±1 Digit (of meas. range) charging time 5 hours
(Rs > 100 Ω) c) External DC source;
12 V DC (9–15 V); P > 10 VA
Accessoires: Weight: 6.3 kg
Standard: Test leads and clips Dimensions: 340 x 180 x 270 mm
Optional: Printer, temperature sensor Housing: yellow plastic case with handle
remote switch FGK 1 Vibration and drop test: VDE 0411
DIN ISO 9001
®
Product Range : Instruments and Test Vans for Fault Location in Power and Telecommunication Networks
and for Leak Detection in Water and Sewage Networks • Cable and Pipe Locators • Seminars
SebaKMT Sales • 96148 Baunach/Germany • Phone +49 - (0) 9544 - 68 0 • Fax +49 - (0) 9544 - 2273
E-mail : sales@sebakmt.com • Internet : www.sebakmt.com
Technical data subject to change without notice. KMK 7_GB_1/00_ML_Ru
Phone 02 9972 9244 Fax 02 9972 9433
Unit 1, 176 South Creek Road, Cromer NSW 2099
Email sales@sebakmtaus.com www.sebakmtaus.com
Advanced Utility Solutions Pty Ltd. T/A.
