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

Cod: Vanguard MCCB-250


 
Brosura produs PDF, 0.35 Mb
   

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

TESTER MASURARE RAPORT DE TRANSFORMARE TRANSFORMATOARE VANGUARD ATRT-01

• Displays turns-ratio from 0.8-15,000
• Calculates turns-ratio percentage error
• Displays winding polarity and phase angle
• Displays excitation current
• Battery or AC-powered (ATRT-01B S3 only)
• Standalone or computer-controlled

 
TRUSA TESTARE TRANSFORMATOARE DE CURENT DIGITALA PORTABILA VANGUARD EZCT-10

• measurement method ANSI/IEEE C57.12.90, IEC 60044-1 and ANSI/IEEE C57.13.1
• output test voltages 0..50 Vac @ 10A max; 0 - 200 Vac @ 10A max; 0 - 1200 Vac @ 1.5A max (5 min on, 10 min off)
• voltage reading range 0..1,250 Vac
• current ratio range 0.8..99: ±0.5%, 100..999: ±1.0%, 1,000..5,000: ±2%
• phase angle measurement 0..360 degrees
• Perform Saturation, Ratio and Polarity Tests
• Fully Automated
• Comprehensive Graphic and Tabulated Test Reports
• Plot Multiple Saturation Curves
• Computer Interface & pc software

 
TESTER REZISTENTE INFASURATORI TRANSFORMATOARE TRIFAZATE VANGUARD TRM-403

• accurately measure resistance from 1 micro-ohm to 500 Ohms
• Perform three phase test on a transformer without the need to switch cables
• Can provide individual Delta winding resistance values
• Can provide individual Wye (with no neutral) winding resistance values
• Demagnetize transformer after test
• Selectable test current from 1A to 40A
• Computer control via RS-232C, USB, or Bluetooth interface
• Built-in 2.5" wide 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

 
MICRO-OHMMETRU REZISTENTA CONTACTE TRANSFORMATOR 600A VANGUARD DMOM-600

• 10 to 600A programmable test current
• Resitance range: 1.5m? at 600A to 450m? at 10A
• 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

 
TESTER AUTOMAT RAPORT TRANSFORMARE TRANSFORMATOR TRIFAZIC TRIPOLAR VANGUARD ATRT-03A

• Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards plus phase shifting transformers
• Store up to 128 transformer test-plans in Flash EEPROM
• Store up to 112 test records in Flash EEPROM
• Built-in USB Flash Drive Interface
• Computer Interface (RS-232C and USB Port)
• 4.5 Inch thermal printer
• Built-in transformer load tap changer

 
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

 
TRUSA INJECTIE CURENTI PRIMARI 600A AC TESTARE RELEE DE PROTECTIE VANGUARD PCI-600

• Results displayed on a 4-line by 20-character backlit LCD
• Test currents from 10 to 600 amperes AC
• Also has an external-current input (0-10 A)
• timer reading range 1 m.. 2 hours

 
ANALIZOR INTRERUPATOARE STICLA CU VID INALTA TENSIUNE VANGUARD VBT-60 / 80

• Automatic Testing
• 10 kV to 60 / 80 kV DC output in 5 kV steps
• Selectable dwell time from 5 seconds to 2 minutes
• Digital voltage and current display
• Failure indicator lamp
• Very light-weight