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Circuit Tester
MCCB-250
Vanguard Instruments MCCB-250 Manuals
Manuals and User Guides for Vanguard Instruments MCCB-250. We have
1
Vanguard Instruments MCCB-250 manual available for free PDF download: User Manual
Vanguard Instruments MCCB-250 User Manual (18 pages)
MOLDED-CASE CIRCUIT BREAKER TESTER
Brand:
Vanguard Instruments
| Category:
Circuit Tester
| Size: 0 MB
Table of Contents
Table of Contents
3
Conventions Used in this Document
4
1 Introduction
5
General Description and Features
5
Furnished Accessories
5
MCCB-250 Technical Specifications
6
Table 1. MCCB-250 Technical Specifications
6
Controls and Indicators
7
Figure 1. MCCB-250 Controls and Indicators
7
Table 2. Functional Descriptions of MCCB-250 Controls and Indicators
8
2 Functional Description
9
MCCB-250 AC Current Source
9
Table 3. MCCB-250 Current Output
9
Table 4. MCCB-250 Overload Current Output
9
MCCB-250 Current Output Control
10
Timer Stop Input and Control
11
MCCB-250 Timer
12
External Current Input
12
LCD Contrast Control
12
Figure 2. Typical MCCB-250 Test Results Screen
12
3 Operating Procedures
14
Testing the Time Delay of a Protection Relay
14
Figure 3. Typical MCCB-250 Application
14
Measuring Current Transformer Primary and Secondary Currents
16
Figure 4. Typical Current Transformer Current Ratio Test Connections
16
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