GE LPS-D, Instruction Manual

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LPS-D Line Protection System GE Power Management
4.1 OVERVIEW 4 ACCEPTANCE/PERIODIC TESTS
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4.1.3 DRAWINGS AND REFERENCES
The following drawings should be used for reference during testing.
Elementary Diagrams
• Figure 1–22: ELEMENTARY DIAGRAM WITH DEFAULT I/O ASSIGNMENTS on page 1–47
• Figure 1–23: ELEMENTARY DIAGRAM on page 1–48
Logic Diagrams:
• Figure 1–3: POTENTIAL FUSE FAILURE LOGIC DIAGRAMS on page 1–13
• Figure 1–4: LINE PICKUP LOGIC DIAGRAM on page 1–14
• Figure 1–5: REMOTE-OPEN DETECTOR LOGIC on page 1–15
• Figure 1–7: OSB LOGIC DIAGRAMS on page 1–17
• Figure 1–9: STEP DISTANCE LOGIC DIAGRAM on page 1–27
• Figure 1–11: PUTT LOGIC DIAGRAM on page 1–29
• Figure 1–12: PERMISSIVE OVERREACH TRANSFER TRIP (POTT1) on page 1–31
• Figure 1–13: POTT WITH BLOCKING FUNCTIONS (POTT2) LOGIC DIAGRAM on page 1–32
• Figure 1–14: BLOCKING SCHEME LOGIC DIAGRAM on page 1–34
• Figure 1–17: HYBRID LOGIC DIAGRAM on page 1–37
51G curves:
• Figure 2–15: INVERSE CURVE on page 2–49
• Figure 2–16: VERY INVERSE CURVE on page 2–50
• Figure 2–17: EXTREMELY INVERSE CURVE on page 2–51
The following Chapters should also be used for reference:
• Chapter 11: ALPS-LINK USER GUIDE
• Chapter 12: ASCII COMMUNICATIONS
4.1.4 EQUIPMENT GROUNDING
All equipment used in testing the relay should be connected to a common grounding point to provide noise
immunity. This includes the voltage and current sources and the LPS-D itself.
The ground connection on the LPS-D is terminal A2. The common for surge protection is terminal A18.
A2 should be connected to A18 with #12 wire or larger during test as well as operation (The
separate surge ground is for Hi-Pot testing purposes).
NOTE