Analizor intrerupatoare cu carcasa turnata si relee protectie suprasarcina motor Vanguard MCCB-250

Cod: Vanguard MCCB-250

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Descriere

250 Ampere current source
4 current-source outputs (i.e., 5 A @ 120 Vac, 25 A @ 24 Vac, 120 A @ 6 Vac, 250 A @ 3 Vac)
4-line by 20-character LCD display
Provides external current input (0-10 A)

The Vanguard MCCB-250 is a programmable, high-current source designed specifically for testing molded-case circuit breakers, thermal magnetic and solid-state overload motor-protection relays.

Built-in Timer

The MCCB-250’s built-in timer can test the

time-delay characteristics of protection relays

and molded-case circuit breakers. Once

the test is initiated, the current source and the

timer are automatically turned on at the next

zero-crossing point of the AC. The timer stops

when the MCCB-250 input detects a change

in the dry contact or voltage input, or detects

the removal of the test current. The test results

are then displayed in milliseconds and

fractions of cycle(s) on the unit’s back-lit LCD

screen (20 characters by 4 lines).

Current Source

The MCCB-250 has 4 current-source outputs

(5 A @ 120 Vac, 25 A @ 24 Vac, 120 A @ 6

Vac, 250 A @ 3 Vac) that conduct the test

current through the high-impedance load circuits.

Each current source can tolerate shortduration

over-loads up to 4 times the rated

current (1000 A max). This feature is used

for testing the instantaneous trip element of

molded-case circuit breakers. When using

this feature, the selected test current is displayed

on the LCD screen. When the MCCB-

250 is used as a current source, the currentfl

ow time (the current-on period) is displayed

External Current Input on the LCD screen.

The MCCB-250 also provides an external current

input (0 - 10 A). Both internal and external

current source readings can be viewed at

the same time.

Accesorii standard

Part number MCCB-250 MCCB-250 and cables

Part number MCCB-250-CASE MCCB-250 shipping case

Part number MCCB-250-10FT MCCB-250 test leads - 10 foot

Part number MCCB-250-20FT MCCB-250 test leads - 20 foot

Alte produse VANGUARD

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• Performs CT excitation, current-ratio, polarity, and phase angle tests
• Measures insulation resistance and winding resistance of the CT seconday windings
• Measures the CT's secondary burden
• Test record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-comments
• Built-in 4.5-inch wide thermal printer
• Plot Multiple Saturation Curves
• Stores up to 128 CT test plans and 140 test records internally
• USB, Bluetooth, and USB Flash drive interface

MICROHMMETRU REZISTENTE CONTACT INTRERUPATOARE 200A VANGUARD DMOM-200 S3

• 1 to 200A programmable test current
• Resitance range: 1µ?..10m? at 200A to 1µ?..5? at 1A
• Very lightweight: 19.8 lbs. (8.9 Kg)
• Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
• Stores test records on-board or on external USB Flash drive
• Built-in 2.5" wide thermal printer

PUNTE TESTARE REZISTENTE INFASURARI TRANSFORMATOARE VANGUARD TRM-40

• accurately measure resistance values from 1 micro-ohm to 500 Ohms
• Auto-discharge circuit for operator safety
• Demagnetizes transformer after test
• Selectable test current from 1A to 40A
• RS-232C, USB, and Bluetooth computer interfaces
• Built-in thermal printer

TESTER AUTOMAT RAPORT TRANSFORMARE TRANSFORMATOARE TRIFAZICE TRIPOLARE VANGUARD ATRT-03 S2

• Highest ratio: 0.8 - 15,000
• Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
• 3 Test voltages available: 8Vac, 40Vac, 100Vac
• Phase angle and excitation current measuring
• Computer Interface (RS-232C and USB Port)
• USB flash drive interface
• Name-plate turns ratio calculation
• Computed % error based on measured and calculated ratio
• Optional 4.5" thermal printer

ANALIZOR INTRERUPATOARE CU CARCASA TURNATA SI RELEE PROTECTIE SUPRASARCINA MOTOR VANGUARD MCCB-250

• 250 Ampere current source
• 4 current-source outputs (i.e., 5 A @ 120 Vac, 25 A @ 24 Vac, 120 A @ 6 Vac, 250 A @ 3 Vac)
• 4-line by 20-character LCD display
• Provides external current input (0-10 A)

MICROOHMMETRU AUTOMATIC REZISTENTE DE CONTACT INTRERUPATOARE 200A VANGUARD AUTO-OHM 200 S3

• 1 to 200A programmable test current
• Resitance range: 1µ?..10m? at 200A to 1µ?..5? at 1A
• Very lightweight: 16.8 lbs. (7.6 Kg)
• Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
• Stores test records on-board or on external USB Flash drive
• Rugged, 44-key "QWERTY" membrane keypad
• Windows XP/Vista/7 Analysis Software (included with purchase)

SURSA DE PUTERE CURENT 10A AC/DC REGLABILA PENTRU TESTARE INTRERUPATOARE SI RELEE DE PROTECTIE VANGUARD UPS-S2

• Isolated variable 1-300 Vdc source
• Isolated variable 1-240 Vac source
• 10 ampere continuous current

ANALIZOR COMUTATOR PLOTURI IN SARCINA SI REZISTENTA INFASURARE TRANSFORMATOR TRIFAZAT VANGUARD LTCA-40

• Auto discharge circuit for operator safety
• 3 resistance reading channels including one dynamic channel
• Digital resistance reading from 1 micro-ohm to 500 ohms
• 60Vdc power supply , outputting 40 amperes
• Calculate equivalent resistance value at reference temperature
• Stores 50 static records and 20 dynamic records
• Built-in 4.5-inch thermal printer

TESTER AUTOMAT RAPORT DE TRANSFORMARE TRANSFORMATOARE TRIFAZATE VANGUARD ATRT-03

• Highest ratio: 0.8 - 15,000
• Built-in 4.5" thermal printer
• Excitation current measuring
• Phase angle measuring
• Computer interface
• Name-plate turns ratio calculation
• Computed % error based on measured and calculated ratio

TRUSA TESTARE TRANSFORMATOARE DE CURENT, RAPORT TRANSFORMARE, EXCITATIE, SATURATIE, POLARITATE VANGUARD EZCT-2000A

• Perform Saturation, Ratio and Polarity Tests
• Perform CT Winding Resistance Test
• Fully Automated
• Test record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-comments
• Plot Multiple Saturation Curves
• Store 140 Records (of 10 Saturation Curves)
• Computer Interface
• USB Flash drive interface