CIBANO 500 PTM User Manual
214 OMICRON
17.3 Testing gas insulated switchgears with both sides
grounded
CIBANO 500 in connection with Primary Test Manager supports testing of gas insulated switchgears
(GIS) with both sides grounded. This section describes the following GIS tests:
• Contact Resistance (see 17.3.4 "Contact Resistance test" on page 221)
• Timing (CSM) (see 17.3.5 "Timing (CSM) test" on page 226)
• Minimum Pickup (see 17.3.6 "Minimum Pickup test" on page 236)
• Motor Current (see 17.3.7 "Motor Current test" on page 240)
For testing of single-side grounded gas insulated switchgears, proceed as described in 17.1 "Testing
medium-voltage circuit breakers" on page 119 or 17.2 "Testing high-voltage circuit breakers" on
page 163.
17.3.1 Safety precautions in the substation
Always observe the following safety rules:
• Disconnect completely.
• Secure against re-connection.
• Verify that the installation is dead.
• Carry out grounding and short-circuiting.
• Provide protection against adjacent live parts.
• Ground the test object at one or more terminals during connecting, testing and disconnecting.
Separate your working area as shown in Figure 1-1: "Example of the separation of the work and high-
voltage test areas" on page 12 into a work area and a dangerous area when a test is running. Set up a
suitable barrier and, if applicable, status lights to protect others from accessing the dangerous area and
accidentally touching live parts.
DANGER
Death or severe injury caused by a lightning discharge
► Do not connect the test set to the test object if there is a possibility of a thunderstorm over any
part of the system.
► Always observe the weather conditions while testing with CIBANO 500.
WARNING
Death or severe injury caused by high voltage or current possible
► Do not test with CIBANO 500 without grounding the circuit breaker.
► Always ground the circuit breaker on both ends on all phases and close the circuit breaker to
have proper grounding between the interrupters.
To Next Page
Loading...
